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JJG 2096-2017 English PDF

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JJG 2096-2017: Concentration of Element Based on Isotope Dilution Mass Spectrometry
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Basic data

Standard ID JJG 2096-2017 (JJG2096-2017)
Description (Translated English) Concentration of Element Based on Isotope Dilution Mass Spectrometry
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A61
Word Count Estimation 9,942
Date of Issue 2017-09-26
Date of Implementation 2017-12-26
Regulation (derived from) General Administration of State Quality Inspection Announcement 2017 No. 78
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine

JJG 2096-2017: Concentration of Element Based on Isotope Dilution Mass Spectrometry

---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.
(Quantitative Test System for Element Content Based on Isotope Dilution Mass Spectrometry) People's Republic of China National Metrology Verification System Table Element content based on isotope dilution mass spectrometry Concentration ofElementBasedonIsotopeDilutionMassSpectrometry 2017-09-26 Posted 2017-12-26 Implementation General Administration of Quality Supervision, Inspection and Quarantine released Element content based on isotope dilution mass spectrometry Metrological verification system table The focal point. National Physical Chemistry Metering Technology Committee Drafting unit. China Institute of Metrology The verification system commissioned by the National Physical Chemistry Metrology Technical Committee is responsible for interpretation The main author of the verification system table. Jun Wang (China Institute of Metrology) Participate in the drafters. Qionghai (China Institute of Metrology) Ren Tongxiang (China Institute of Metrology)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2 measurement standards (1) 2.1 role (1) 2.2 measuring device (1) 2.3 Measuring range and relative expansion Uncertainty (2) 3 measurement standards (2) 3.1 concentrated isotope diluent national standard (2) 3.2 elemental content of national standards (2) 3.3 complex matrix elemental content of national standards (2) 3.4 Measuring Instruments (2) 4 Working measuring instruments (2) 4.1 elemental content standard solution (2) 4.2 concentrated isotope diluent standard solution (3) 4.3 Measuring Instruments (3) 4.4 Relative measurement of elemental content (comparative method) (3) 5 Isotope dilution mass spectrometry elemental content measurement verification system block diagram (3)

Introduction

The verification system table in accordance with the JJF1104-2003 "National Metrology Verification System Table Writing Rules" to develop, is Guiding element content and elemental morphology analysis of measurement basic measurement techniques. This verification system table is released for the first time. System of Metrological Verification System Based on Isotope Dilution Mass Spectrometry

1 Scope

This verification system sheet is suitable for the transmission of the measurement of elemental content, specifies the method based on isotope dilution mass spectrometry and With the concentrated isotope diluent reference material and related measuring instruments, from the measurement standards through the measurement standards to be tested multicore Methods, procedures, and optimal measurement capabilities and expansion of prime elements or their morphological content Determine the degree. In the calibration, but also as a basis for traceability.

2 measurement standards

2.1 role Elemental content based on isotope dilution mass spectrometry National standard Reproduced Concentrated isotope diluent National First Class Quasi-material characteristics of the value (concentration and isotope ratio); and by concentration of isotope diluent national level standard substance Pass the value, to ensure that the elements of the measured multi-nuclide or its content accuracy and unity. 2.2 measuring device Elemental content based on isotope dilution mass spectrometry The national baseline measurement device consists of a balance, multi-receiver isotope mass spectrometry Instrument, high-resolution mass spectrometer and other components. 2.2.1 Balance. Range ≥ 1g, dividing the value of 0.1μg. 2.2.2 Multi-receiver thermal ionization mass spectrometer. a) Mass range. (3 ~ 280) u. b) Resolution ≥400 (Definition of 10% Peak Valley). c) Peak stability not to exceed ± 5 × 10-5 (within 30 min). d) abundance sensitivity ≤5 × 10-6; ≤2 × 10-8 (filter with abundance sensitivity). e) Equipped with multiple Faraday cup detectors. 2.2.3 multi-receiver inductively coupled plasma mass spectrometer. a) Mass range. (3 ~ 280) u. b) Resolution ≥400 (Definition of 10% Peak Valley). c) Peak stability not to exceed ± 1 × 10-4 (within 30 min). d) Abundance sensitivity ≤15 × 10-6. ≤ 7.5 × 10-8 (using abundance sensitivity filter). e) Mass shift stability < 0.02%. 2.2.4 high resolution inductively coupled plasma mass spectrometer. a) Mass range. (5 ~ 250) u. b) Resolution Low Resolution ≥300, Medium Resolution ≥4000, High Resolution ≥10000 (10% Peak Valley Definition). c) Peak stability not to exceed ± 1 × 10-4 (within 30 min). d) Sensitivity .115In > 1 x 105 cps/(ng/mL) (medium resolution);

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