GB/T 14666: Evolution and historical versions
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Basic data | Standard ID | GB/T 14666-2025 (GB/T14666-2025) | | Description (Translated English) | Terms for analytical chemistry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G04 | | Classification of International Standard | 71.040.01 | | Word Count Estimation | 126,110 | | Date of Issue | 2025-01-24 | | Date of Implementation | 2025-08-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 14666-2025: Terms for analytical chemistry---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 71.040.01
CCSG04
National Standard of the People's Republic of China
Replace GB/T 14666-2003
Analytical Chemistry Terminology
Released on 2025-01-24
2025-08-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Basic Chemistry 1
4 Sampling and preprocessing 6
5 Chemical Analysis11
6 Electrochemical analysis 18
7 Spectral Analysis 32
8 Chromatographic analysis 44
9 Mass spectrometry 54
10 Nuclear Magnetic Resonance Spectroscopy 63
11 Thermal Analysis 69
12 Data Processing 76
References 81
Index 82
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document replaces GB/T 14666-2003 "Analytical Chemistry Terminology". Compared with GB/T 14666-2003, except for structural adjustment and editing,
In addition to the changes in performance, the main technical changes are as follows.
a) The description of the scope has been changed (see Chapter 1, Chapter 1 of the.2003 edition);
b) Added a chapter on "Basic Chemistry" (see Chapter 3) and adjusted some terms in the chapter on "Chemical Analysis" in the.2003 edition to this chapter
In addition, “matrix” (see 3.3), “certified reference material” (see 3.6.3), “reference reagent” (see 3.6.4), and “electrochemical separation” are added.
analysis", "spectral analysis", "chromatographic analysis", "mass spectrometry", "nuclear magnetic resonance spectroscopy", "thermal analysis", "structural analysis" (see
3.27~3.32, 3.37) terms and definitions; changed "chemical reagents" (see 3.4,.2003 edition 2.3.1), "constant analysis" (see
3.34.1, 2.2.5) Definition of terms in the.2003 edition;
c) Added a chapter on “Sampling and Pretreatment” (see Chapter 4), and adjusted some terms in the chapter on “Chemical Analysis” of the.2003 edition to this chapter
In addition, "sampling scheme", "sampling plan", "sampling system", "simple random sampling", "stratified sampling", "multi-stage sampling" and "
Sampling", "systematic sampling", "cluster sampling", "unit product", "batch", "batch", "sample", "sample size", "reduction", "reduction
Samples” (see 4.2~4.16), “Counting inspection”, “Factory inspection”, “Type inspection”, “Re-inspection”, “Re-test”, “Re-examination”, “Sample pre-treatment”
"dissolution", "dilution", "digestion", "wet digestion", "dry digestion", "microwave digestion" (see 4.18~4.27.3), "ionization
"Microfiltration", "Leaching", "Derivatization", "Enrichment", "Extraction", "Preconcentration (extraction)", "Extractive distillation", "Soxhlet
extraction [method]", "microwave assisted extraction [method]", "ultrasound assisted extraction [method]", "supercritical fluid extraction [method]", "pressurized liquid extraction
extraction method", "countercurrent extraction method", "solid phase extraction method", "solid phase microextraction method", "membrane extraction method", "purge and trap
[Method]” (see 4.33~4.50) terms and definitions; the definition of the term “sampling” (see 4.1, 2.1.1 of the.2003 edition) was changed;
d) In Chapter 5, Chemical Analysis, "Free Acid" (see 5.1.17), "Free Base" (see 5.1.19), "Bromine Index" (see 5.1.24),
"Hydroxy value" (see 5.1.26), "Heating loss" (see 5.1.27), "Ignition loss" (see 5.1.28), "Arsenic spot method" (see 5.2.8), "Steaming method" (see 5.1.29), "Heating loss" (see 5.1.21), "Heating loss" (see 5.1.23), "Heating loss" (see 5.1.24), "
distillation test" (see 5.2.10), "standard titration solution" (see 5.3.1), "color developer" (see 5.3.7), "extractant" (see 5.3.8), "
"indicator" (see 5.3.9.5), "flask" (see 5.4.7), "test tube" (see 5.4.8), "colorimetric tube" (see 5.4.9), "pipette" (see
5.4.12), "funnel" (see 5.4.13), "separating funnel" (see 5.4.13.1), "Gooch crucible" (see 5.4.16), "filter membrane" (see
5.4.20) Terms and definitions;
e) In Chapter 5 Chemical Analysis, the following terms were changed. "melting value" (see 5.1.11, 2.1.18 of the.2003 edition), "ester value" (see 5.1.22,
2.1.46 of the.2003 edition), “potassium dichromate titration [method]” (see 5.2.3.2, 2.2.20.2 of the.2003 edition), “non-aqueous titration [method]” (see
5.2.5, 2.2.22 of the.2003 edition), "stock solution" (see 5.3.2, 2.3.5 of the.2003 edition), "analytical balance" (see 5.4.1,
2.4.1 of the.2003 edition), “weight” (see 5.4.2, 2.4.2 of the.2003 edition) definition of term;
f) In Chapter 5, Chemical Analysis, the terms “chemical metric point”, “semi-micro analysis”, “micro analysis”, “ultra-micro analysis” and “trace analysis” have been deleted.
Analysis", "Ultra-trace analysis", "Dry method", "Wet method", "Gas analysis", "Pipe blow test" (see.2003 edition 2.1.24, 2.2.6~
2.2.12, 2.2.18, 2.2.28) Terms and definitions;
g) In Chapter 6, Electrochemical Analysis, "Electrolyte" (see 6.1.2), "Electroactive Substances" (see 6.1.4), "Interface" (see 6.1.5),
"Double layer", "diffusion", "electromigration", "electrodialysis" (see 6.1.10 to 6.1.13), "current-potential curve" (see 6.1.15), "safety
"amperometric method" (see 6.2.1), "chronoamperometric method" (see 6.2.1.2), "constant potential amperometric titration" (see 6.2.1.3), "potential method" (see
6.2.2), "Chronopotentiometry" (see 6.2.2.2), "Conductivity method" (see 6.2.3), "Chronocoulometry" (see 6.2.4.3), "Electrolysis method"
(see 6.2.5), "Cyclic voltammetry", "Stripping voltammetry" (see 6.2.8.1, 6.2.8.2), "Adsorption stripping voltammetry" (see 6.2.8.5), "Electrodeposition voltammetry"
Chemical impedance spectroscopy" (see 6.2.12), "electrochemical cell" (see 6.3.1), "galvanic cell" (see 6.3.2), "three-electrode cell" (see 6.3.4),
"Anode" (see 6.3.7), "Cathode" (see 6.3.8), "Working Electrode" (see 6.3.12), "Auxiliary Electrode" (see 6.3.13), "Metallic Electrode" (see 6.3.14),
"electrode" (see 6.3.18), "carbon electrode", "glassy carbon electrode", "carbon fiber electrode", "composite electrode", "combined (composite) electrode", "microelectrode
"electrode", "nanoelectrode", "enzyme electrode", "chemically modified electrode", "electrochemical biosensor" (see 6.3.19, 6.3.19.1,
6.3.19.3, 6.3.20~6.3.26), “Electron Transfer Number” (see 6.4.1), “Apparent Electron Transfer Number” (see 6.4.4,
6.4.5), "limiting diffusion current" (see 6.4.16), "double-layer charging current", "instantaneous current", "square wave current", "electrode potential",
"Standard electrode potential", "Applied potential" (see 6.4.18 to 6.4.23), "Equilibrium [electrode] potential" (see 6.4.25), "Electrode surface potential"
"Accumulation", "drip time" and "scan rate" (see 6.4.34 to 6.4.36) terms and definitions;
h) In Chapter 6, Electrochemical Analysis, the terms “supporting electrolyte” (see 6.1.3, 3.4.3 of the.2003 edition) and “base solution” (see 6.1.6,
3.4.2 of the.2003 edition), “ion mobility” (see 6.1.14, 3.1.13 of the.2003 edition), “amperometric titration [method]” (see
6.2.1.1, 3.2.1 of the.2003 edition, “amperometric titration”), “coulometric method” (see 6.2.4, 3.2.5 of the.2003 edition), “coulometric titration”
"Controlled Potential Coulometry" (see 6.2.4.1, 3.2.5.1 of the.2003 edition), "Cathode Coulometry" (see 6.2.4.2, 3.2.5.1.1 of the.2003 edition),
"Cathode Stripping Voltammetry" (see 6.2.8.3, 3.2.10.1 of the.2003 edition), "Cathode Stripping Voltammetry" (see 6.2.8.4,.2003 edition)
3.2.10.2), "Permanent stop titration [method]" (see 6.2.9, 3.2.3 "Permanent stop endpoint [method]" of the.2003 edition), "Electrolytic cell" (see
6.3.3, 3.3.5 of the.2003 edition), “conductivity cell” (see 6.3.5, 3.3.6 of the.2003 edition), “polarizable electrode” (see 6.3.9,
3.3.7.1 “Polarizable Electrodes” of the.2003 Edition), “Non-Polarizable Electrodes” (see 6.3.10, 3.3.7.2 “Depolarizable Electrodes” of the.2003 Edition)
"Indicator electrode" (see 6.3.11, 3.3.9 of the.2003 edition), "Reference electrode" (see 6.3.14, 3.3.8 of the.2003 edition),
"Standard hydrogen electrode" (see 6.3.15, 3.3.9.1.1 of the.2003 edition), "glass electrode" (see 6.3.17.1,
3.3.9.2.1), “Highly oriented pyrolytic graphite electrodes” (see 6.3.19.2, 3.3.9.8 “pyrolytic graphite electrodes” of the.2003 edition), “conductivity
"Conductivity meter" (see 6.3.27, 3.3.2 of the.2003 edition "Conductivity meter"), "Polargraph" (see 6.3.30, 3.3.4 of the.2003 edition), "Cathode
"Current" (see 6.4.8, 3.4.9 of the.2003 edition), "Anode current" (see 6.4.9, 3.4.10 of the.2003 edition), "Power current"
(see 6.4.11, 3.4.12 of the.2003 edition), "peak current" (see 6.4.13, 3.4.14 of the.2003 edition), "limiting current" (see
6.4.14, 3.4.15 of the.2003 edition), "diffusion current" (see 6.4.15, 3.4.16 of the.2003 edition), "residual current" (see
6.4.17, 3.4.17 of the.2003 edition), "overpotential" (see 6.4.24, 3.1.6 "overvoltage" of the.2003 edition), "decomposition potential" (see
6.4.26, 3.1.7 “Decomposition voltage” of the.2003 edition), “Peak potential” (see 6.4.30, 3.4.20 of the.2003 edition), “Irreversible polarity”
Spectral wave” (see 6.4.32.1, 3.4.18.1 “irreversible wave” of the.2003 edition), “reversible polarographic wave” (see 6.4.32.2,
3.4.18.2 “Reversible wave”), “Polarographic catalytic wave” (see 6.4.32.3, 3.4.18.3 “Catalytic wave” of the.2003 edition), “Isoelectric point” (see
6.4.33, 3.4.22 of the.2003 edition), “diffusion current constant” (see 6.4.37, 3.4.24 of the.2003 edition) definition of terms;
i) In Chapter 6, Electrochemical Analysis, the terms “depolarizer”, “[ultra]microelectrode”, “Nernst equation”, “half-wave potential”, “Euclidean potential” were deleted.
"Viche equation" (see 3.4.4, 3.3.9.9, 3.4.7, 3.4.19, 3.4.23 of the.2003 edition) terms and definitions;
j) In Chapter 7, Spectral Analysis, the following sections were added. “Excited states” (see 7.1.5), “Electronic transitions” (see 7.1.7), “Plasma”, “Hydride emission”
"Fluorescence quenching" (see 7.1.22~7.1.24), "absorption spectroscopy" (see 7.2.5), "ultraviolet-visible absorption spectroscopy" (see
7.2.5.2), "atomic fluorescence spectrometer" (see 7.3.8), "inductively coupled plasma emission spectrometer", "Raman spectrometer", "dry
"Involving instruments" (see 7.3.12~7.3.14), "high pressure xenon lamp", "hollow cathode lamp", "Nernst lamp", "flame atomizer", "graphite furnace
atomizer", "nebulizer", "monochromator", "charge-coupled device", "inductively coupled plasma torch", "radio frequency generator" (see
7.3.16~7.3.25), "photomultiplier tube" (see 7.3.29), "solid-state detector" (see 7.3.30) terms and definitions;
k) In Chapter 7, Spectral Analysis, the following terms were changed. “[electromagnetic] radiation” (see 7.1.1, 4.1.1 of the.2003 edition), “ground state” (see 7.1.4,
4.1.4 of the.2003 edition), “energy level” (see 7.1.6, 4.1.5 of the.2003 edition), “resonance energy” (see 7.1.8, 4.1.6 of the.2003 edition),
“Excitation energy” (see 7.1.9, 4.1.7 of the.2003 edition), “ionization energy” (see 7.1.10, 4.1.8 of the.2003 edition), “spectral line excitation energy”
"position" (see 7.1.12, 4.1.10 of the.2003 edition), "spectral line profile" (see 7.1.13, 4.1.11 of the.2003 edition), "characteristic line" (see
7.1.14, 4.1.12 of the.2003 edition), “ion line” (see 7.1.17, 4.1.15 of the.2003 edition), “atomic emission spectrum” (see
7.1.18, 4.1.16 of the.2003 edition), “atomic absorption spectrum” (see 7.1.19, 4.1.17 of the.2003 edition), [molecular] spectral band (see
7.1.21, 4.1.20 of the.2003 edition), “passband” (see 7.1.25, 4.1.19 of the.2003 edition, “bandpass”), “repetition of wavelength positioning”
"Accuracy of wavelength positioning" (see 7.1.28, 4.1.23 of the.2003 edition), "Optical
"Last line of spectrum" (see 7.1.29, 4.1.24 of the.2003 edition), "Isoabsorptive point" (see 7.1.32, 4.1.27 of the.2003 edition), "Resolution point" (see 7.1.33, 4.1.27 of the.2003 edition),
rate" (see 7.1.35, 4.1.30 of the.2003 edition), "dispersion force" (see 7.1.37, 4.1.32 of the.2003 edition), "linear dispersion rate" (see
7.1.38, 4.1.33 of the.2003 edition), "Stray radiation" (see 7.1.39, 4.1.34 of the.2003 edition), "Stray radiation rate" (see
7.1.39.1, 4.1.34.1 of the.2003 edition), “Self-corrosion” (see 7.1.41, 4.1.36 of the.2003 edition), “Turbidimetric method” (see 7.2.2,
4.2.2 of the.2003 edition), “turbidimetric method” (see 7.2.3, 4.2.3 of the.2003 edition), “X-ray fluorescence spectrometry” (see
7.2.4.3, 4.2.12 of the.2003 edition), “Fluorescence spectroscopy” (see 7.2.4.5, 4.2.8 “Fluorescence analysis” of the.2003 edition), “Phosphorescence
Spectrometry" (see 7.2.4.6, 4.2.7 "Phosphorescence analysis" of the.2003 edition), "Atomic absorption spectrometry" (see 7.2.5.1,.2003 edition
4.2.5 "Atomic absorption spectrophotometry"), "Infrared absorption spectroscopy" (see 7.2.5.3, 4.2.10 of the.2003 edition), "X-ray
Absorption spectroscopy" (see 7.2.5.4, 4.2.13 of the.2003 edition), "Raman spectroscopy" (see 7.2.6, 4.2.11 of the.2003 edition),
"X-ray diffraction" (see 7.2.7, 4.2.14 of the.2003 edition), "atomic absorption spectrometer" (see 7.3.3,
4.3.3 “Atomic absorption spectrophotometer”), “Spectrophotometer” (see 7.3.4, 4.3.4 of the.2003 edition), “Fourier transform infrared
Spectrometer" (see 7.3.5, 4.3.5 "Fourier transform infrared spectrometer" of the.2003 edition), "fluorescence spectrophotometer" (see
7.3.7, 4.3.6.1 of the.2003 edition, “spectrofluorimeter”), “X-ray fluorescence spectrometer” (see 7.3.9, 4.3.7 of the.2003 edition,
"X-ray fluorescence spectrometer"), "flame photometer" (see 7.3.11, 4.3.9 of the.2003 edition), "radiation source" (see 7.3.15,
4.3.10 of the.2003 edition), "absorption filter" (see 7.3.26.1.1, 4.3.11.1.1 of the.2003 edition), "absorption cell" (see
7.3.27, 4.3.12 of the.2003 edition), “absorbance” (see 7.4.7, 4.4.7 of the.2003 edition) definition of terms;
l) In Chapter 8, “Baseline (Chromatography)”, “Baseline Drift”, “Baseline Noise”, “Aging” and “Column Loss” were added to the Chromatographic Analysis section (see
8.1.6~8.1.10), "Headspace gas chromatography" (see 8.2.3.4), "Purge and trap gas chromatography" (see 8.2.3.5), "Normal phase liquid chromatography"
Phase chromatography" (see 8.2.4.3), "Gel filtration chromatography", "Gel permeation chromatography" (see 8.2.4.6.1, 8.2.4.6.2), "Ion
Exchange chromatography", "displacement chromatography", "hydrophilic interaction chromatography", "hydrophobic interaction chromatography" (see 8.2.4.9 to 8.2.4.12),
"Ultra-high performance liquid chromatography" (see 8.2.4.15), "gas chromatograph", "liquid chromatograph", "gel permeation chromatography", "ion chromatography"
Chromatograph, "supercritical fluid chromatograph", "thin layer chromatograph" (see 8.3.1.1 to 8.3.1.6), "vaporization chamber" (see 8.3.2), "
flow detector" (see 8.3.3), "nitrogen phosphorus detector", "photoionization detector", "helium ionization detector", "fluorescence detector" (see
8.3.6.5 to 8.3.6.8), “photodiode array detector”, “[laser] light scattering detector”, “evaporative light scattering detector”,
"Mass spectrometer" (see 8.3.6.10 to 8.3.6.13), "charged aerosol detector" (see 8.3.6.17), "hollow column" (see 8.3.8.3),
"Liquid chromatography monolithic column" (see 8.3.9), "[mobile phase] flow rate" (see 8.4.1), "retention time", "[total] retention time", "adjustment
Adjusted retention time", "Retention volume", "[Total] retention volume", "Adjusted retention volume", "Relative retention value", "Response value", "Sensitivity
degree (chromatography)", "column efficiency", "linear range", "correction factor", "asymmetry factor", "tailing factor", "partition coefficient",
"Resolution", "gradient elution" and "programmed temperature" (see 8.4.3 to 8.4.20) terms and definitions;
m) In Chapter 8 Chromatographic Analysis, the terms "carrier" (see 8.1.1.1, 5.1.2 of the.2003 edition), "stationary phase" (see 8.1.1.2,
5.1.1.1 of the.2003 edition), “adsorbents” (see 8.1.1.3, 5.1.1.2 of the.2003 edition), “ion exchangers” (see 8.1.1.6 of the.2003 edition)
5.1.1.5 of the.2003 edition), “eluent” (see 8.1.2.1, 5.4.4 of the.2003 edition), “modifier” (see 8.1.2.3, 5.4.6 of the.2003 edition)
"tailing agent"), "chromatogram" (see 8.1.11, 5.1.8 of the.2003 edition), "[chromatographic] peak" (see 8.1.12,
5.1.9), "Adsorption chromatography" (see 8.2.1, 5.2.1.1 of the.2003 edition), "Partition chromatography" (see 8.2.2,
5.2.1.2), "High Performance Liquid Chromatography" (see 8.2.4.5, 5.2.1.4.4 of the.2003 edition), "Size Exclusion Chromatography" (see
8.2.4.6, 5.2.1.4.5 “Size Exclusion Chromatography” of the.2003 Edition), “Ion Chromatography” (see 8.2.4.8,.2003 Edition)
5.2.1.4.8), “capillary micellar electrokinetic chromatography” (see 8.2.4.17, 5.2.1.6 of the.2003 edition), “high voltage electrophoresis” (see
8.2.5.2.3, 5.2.2.2.3 of the.2003 edition), "Cracker" (see 8.3.5, 5.3.3 of the.2003 edition), "[Differential] Refractive Index Detector
"Apparatus" (see 8.3.6.14, 5.3.4.6 of the.2003 edition), "Split ratio" (see 8.4.2, 5.4.8 of the.2003 edition), "Chromatograph" (see
8.3.1, 5.3.1 of the.2003 edition), “UV-visible detector” (see 8.3.6.9, 5.3.4.5 of the.2003 edition) definition of terms;
n) In Chapter 8, “chromatographic analysis”, the terms “internal standard substance”, “fingerprint chromatogram”, “spot”, “silanization”, “chromatography”, “pseudo-phase liquid phase” were deleted.
Chromatography", "Gorlay equation", "Van Deemter equation", "mass transfer resistance", "longitudinal diffusion", "eddy diffusion", "molecular diffusion
dispersion, "permeability" (see 5.1.6, 5.1.8.1, 5.1.14, 5.4.7, 5.2.1, 5.2.1.4.6, 5.4.1, 5.4.2,
5.4.2.1, 5.4.2.2, 5.4.2.2.1, 5.4.2.2.2, 5.4.3) Terms and definitions;
o) In Chapter 9, mass spectrometry analysis, the following sections were added. “Mass accuracy” (see 9.1.7), “Pulse delay extraction”, “Mass repeatability”, “Mass accuracy”
"quality", "mass stability", "ion abundance", "relative ion abundance", "rearranged ions", "odd electron ions", "even electron ions",
"Multiply charged ions", "Isotope ions", "Sensitivity (mass spectrometry)", "Signal-to-noise ratio", "Total ion current chromatogram", "Extracted ion chromatogram"
Figure" (see 9.1.23~9.1.37), "Tandem mass spectrometry" (see 9.2.1), "Atmospheric pressure chemical ionization" (see 9.2.21), "Triple quadrupole
GC-MS” (see 9.3.1.8), “Triple quadrupole LC-MS” (see 9.3.1.9), “Electrostatic field orbital trap mass spectrometer”, “Fan
Magnetic field mass spectrometer", "isotope mass spectrometer", "inductively coupled plasma mass spectrometer" (see 9.3.1.13~9.3.1.16), "matrix
Laser desorption time-of-flight mass spectrometer (see 9.3.1.18), "ion mobility mass spectrometer" (see 9.3.2), "collision gas", "drying
"Gas", "Full Scan", "Selected Ion Monitoring", "Daughter Ion Scan", "Precursor Ion Scan", "Neutral Loss Scan", "Multiple Reaction Monitoring
measurement", "corona discharge", "matrix effect", "nitrogen rule", "Rayleigh limit", "space tandem mass spectrometry", "time tandem mass spectrometry", "α-
"β-cleavage" and "β-cleavage" (see 9.4.6 to 9.4.21) terms and definitions;
p) In Chapter 9, Mass Spectrometry, the following terms were changed. "Mass Range" (see 9.1.6, 6.1.6 of the.2003 edition), "Matrix Assisted Laser Desorption Ionization"
(See 9.2.19, 6.2.20 of the.2003 edition) Definition of terms;
q) Chapter 10 Nuclear Magnetic Resonance Spectroscopy Analysis adds "magnetic field strength", "locking field", "tuning", "matching", "uniform field", "spin system",
"Spin decoupling", "Fourier transform", "magic angle rotation", "chemical equivalence", "magnetic equivalence" (see 10.1.21~10.1.31), "one-dimensional
Spectroscopy" (10.2.2), "Heteronuclear Resonance", "High Power Decoupling", "Broadband Decoupling" (see 10.2.6~10.2.8), "Superconducting Magnets", "Exploration
head", "pulsed gradient field", "radio frequency unit", "control and data processing system", "compressed gas and gas circuit system" (see
10.3.1.1~10.3.1.6), "pulse" (see 10.4.12), "pulse flip angle" (see 10.4.13) terms and definitions;
r) In Chapter 10 Nuclear Magnetic Resonance Spectroscopy, the following terms were changed. "Nuclear magnetic moment" (see 10.1.1, 7.1.1 of the.2003 edition), "precession" (see
10.1.4, 7.1.4 of the.2003 edition), "primary spectrum" (see 10.1.8, 7.1.10 of the.2003 edition), "secondary spectrum" (see
10.1.9, 7.1.11 of the.2003 edition), “Nuclear Overhauser Effect” (see 10.1.20, 7.1.22 of the.2003 edition), “Two-Dimensional Spectroscopy” (see
10.2.3, 7.2.2 of the.2003 edition), "sampling time" (see 10.4.7, 7.4.7 of the.2003 edition, "data collection time"), "residence time"
(See 10.4.8, 7.4.8 “Sampling time” of the.2003 edition) Definition of terms;
s) In Chapter 10, Nuclear Magnetic Resonance Spectroscopy, the terms "internal lock", "external lock", "internal standard" and "external standard" have been deleted (see 7.1.8,.2003 edition).
7.1.9, 7.1.14.1, 7.1.14.2) Terms and definitions;
t) Added a chapter on "Thermal Analysis" (see Chapter 11), added "Programmed Temperature Control", "Glass Transition", "Glass Transition Temperature", "Thermal Enthalpy Relaxation",
"Crystallization", "Crystallization enthalpy", "Melt", "Melting enthalpy", "Phase", "Phase change temperature", "Phase change enthalpy", "Specific heat capacity", "Self-heating", "Reaction
heat", "starting temperature", "end temperature", "ideal adiabatic temperature rise", "measured adiabatic temperature rise", "thermal inertia factor", "thermal runaway reaction
response", "maximum reaction rate arrival time", "maximum reaction rate arrival time under adiabatic conditions", "endothermic effect", "exothermic effect
"Linear expansion coefficient", "average linear expansion coefficient", "hybrid technology" (see 11.1.1~11.1.27), "thermogravimetry", "differential thermal analysis
Differential Scanning Calorimetry, Power Compensated Differential Scanning Calorimetry, Heat Flow Differential Scanning Calorimetry, Thermomechanical Analysis
analysis", "dynamic (thermo) mechanical analysis" (see 11.2.1 to 11.2.7), "thermal balance", "differential thermal analyzer", "differential scanning calorimeter",
"Power Compensation Differential Scanning Calorimeter", "Heat Flux Differential Scanning Calorimeter", "Thermomechanical Analyzer", "Dynamic Thermomechanical Analyzer"
Analyzer", "adiabatic calorimeter", "adiabatic accelerating calorimeter", "synchronous thermal analyzer" (see 11.3.1~11.3.10), "baseline" (see
11.4.1), "Instrument baseline", "Sample baseline", "Quasi-baseline" (see 11.4.1.1 to 11.4.1.3), "Drift", "Adiabatic condition", "Absolute
Thermal temperature rise", "thermal conductivity", "peak" (see 11.4.2~11.4.6), "endothermic peak", "exothermic peak", "peak height", "peak width", "peak area"
(see 11.4.6.1~11.4.6.5), "peak temperature", "extrapolated starting temperature", "thermal analysis curve" (see 11.4.7~11.4.9), "thermal
Weight curve", "differential thermal analysis curve", "differential scanning calorimetry curve", "dynamic thermomechanical analysis curve", "derivative curve" (see
11.4.9.1~11.4.9.5), “heat flow rate” (see 11.4.10), “oxidation induction period” (see 11.4.11) terms and definitions;
u) In Chapter 12, Data Processing, the following sections were added. “Correction” (see 12.3), “Measurement Offset” (see 12.4), “Range” (see 12.6), “Repeatability”
critical range” (see 12.7), “addition of spikes” (see 12.11), “recovery” (see 12.13), “accuracy” (see 12.14), “standard [test
"Type A evaluation of [measurement uncertainty]", "Type B evaluation of [measurement uncertainty]", "Synthetic standard [measurement
[Measurement] uncertainty", "Relative standard [measurement] uncertainty", "Expanded [measurement] uncertainty" (see 12.16~12.21), "Repeat
"Reproducibility conditions", "detection limit", "method detection limit", "instrument detection limit", "sensitivity", "quantitative
limit", "selectivity", "linearity", "robustness", "validation", "confirmation", "inter-laboratory comparison", "intra-laboratory comparison" (see
12.26~12.38) Terms and definitions;
v) In Chapter 12 Data Processing, the following terms were changed. "Accuracy" (see 12.12, 8.4 of the.2003 edition), "Precision" (see 12.22,
8.6 of this edition) Definition of terms;
w) In Chapter 12, Data Processing, the terms “true value of a quantity”, “measurement error”, “absolute error”, “relative error”, and “random error” were deleted.
error", "systematic error", "method error", "instrument error", "operation error", "significance test", "factor analysis", "chemical model
Pattern Recognition", "Artificial Intelligence", "Optimization and Experimental Design", "Analytical Signal Processing" (see 8.1, 8.9, 8.9.1~ of the.2003 edition)
8.9.7, 8.11, 8.13~8.17) Terms and definitions.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Petroleum and Chemical Industry Federation.
This document is under the jurisdiction of the National Technical Committee on Chemical Standardization (SAC/TC63).
This document was drafted by. Zhejiang Chemical Product Quality Inspection Station Co., Ltd., CNOOC Tianjin Chemical Research and Design Institute Co., Ltd.,
Shanghai Chemical Industry Research Institute Testing Co., Ltd., Shandong Product Quality Inspection Institute, China Inspection and Quarantine (Tianjin) Testing Co., Ltd., China
Institute of Metrology, Beijing Sinochem United Certification Co., Ltd., Ningbo Zhongqin Testing Technology Co., Ltd., China Pingmei Shenma Group Nylon
TECHNOLOGY LIMITED.
The main drafters of this document are. Fang Lu, Sun Hai, Hao Yuan, Feng Yujie, Pang Wenfei, Guo Yongxin, Tian Yewei, Zhang Juan, Chen Huiming, Sun Weiping,
Fang Wenjie, Wang Gaosheng, Yu Feng, Yang Yi, Quan Can, Li Lin, Zhou Lili, Sun Wendan, Wang Xin, Ye Jiamei, and Wang Longxin.
This document was first issued in.1993, revised for the first time in.2003, and this is the second revision.
Analytical Chemistry Terminology
1 Scope
This document defines basic chemistry, sampling and pretreatment, chemical analysis, electrochemical analysis, spectral analysis, chromatography, mass spectrometry,
Terms and definitions for spectral analysis, nuclear magnetic resonance spectroscopy, thermal analysis, and data processing.
This document is applicable to the compilation and application of analytical chemistry standards, technical documents, books and periodicals.
2 Normative references
This document has no normative references.
3 Basic Chemistry
3.1
Sample
A small amount of a substance analyzed to provide a quantitative value representative of a property of the population.
3.2
Test solution
A solution prepared with a sample or obtained for analysis.
3.3
Basalbody
Other components in the sample except the measured element (component).
3.4
Chemical reagents
Chemical substances used in chemical experiments, analysis, and research with high purity and for specific chemical reactions or test processes.
3.5
Standard solution
A solution in which the concentration of an element, ion, compound or group is accurately known from the substances used to prepare the solution.
3.6
Reference material reference material; RM
Standard substances
A substance that has sufficiently homogeneous and stable properties and whose properties are demonstrated to be suitable for its intended use in the measurement or examination of nominal properties.
3.6.1
Its characteristic value adopts absolute measurement method or other accurate and reliable measurement method, and the measurement accuracy reaches the highest level in China and is accompanied by
Certificate, a standard substance approved, issued and authorized for production by the highest national metrology administrative department.
3.6.2
Its characteristic value adopts accurate and reliable measurement method or measurement method directly compared with primary standard material, and the measurement accuracy meets
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