Powered by Google www.ChineseStandard.net Database: 189759 (14 Jul 2024)

GB/T 11064.16-2023 PDF in English


GB/T 11064.16-2023 (GB/T11064.16-2023, GBT 11064.16-2023, GBT11064.16-2023)
Standard IDContents [version]USDSTEP2[PDF] delivered inName of Chinese StandardStatus
GB/T 11064.16-2023English260 Add to Cart 0-9 seconds. Auto-delivery. Methods for chemical analysis of lithium carbonate, lithium hydroxide monohydrate and lithium chloride - Part 16: Determination of calcium, magnesium, copper, lead, zinc, nickel, manenases, cadmium, aluminum, iron and sulfate contents - Inductively couple Valid

PDF Preview

Standards related to: GB/T 11064.16-2023

GB/T 11064.16-2023: PDF in English (GBT 11064.16-2023)

GB/T 11064.16-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.120.99
CCS H 14
Replacing GB/T 11064.16-2013
Methods for chemical analysis of lithium carbonate, lithium
hydroxide monohydrate and lithium chloride - Part 16:
Determination of calcium, magnesium, copper, lead, zinc,
nickel, manganese, cadmium, aluminum, iron and sulfate
contents - Inductively coupled plasma atomic emission
spectrometry
ISSUED ON: AUGUST 06, 2023
IMPLEMENTED ON: MARCH 01, 2024
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 7
2 Normative references ... 7
3 Terms and definitions ... 8
4 Principle ... 8
5 Reagents or materials ... 8
6 Instruments and equipment ... 10
7 Samples ... 10
8 Test steps ... 10
9 Test data processing ... 12
10 Precision ... 12
11 Test report ... 15
Annex A (informative) Recommended analytical spectral lines and instrument
operating parameters ... 16
Annex B (informative) Statistics data derived from laboratory results ... 17
Methods for chemical analysis of lithium carbonate, lithium
hydroxide monohydrate and lithium chloride - Part 16:
Determination of calcium, magnesium, copper, lead, zinc,
nickel, manganese, cadmium, aluminum, iron and sulfate
contents - Inductively coupled plasma atomic emission
spectrometry
1 Scope
This document describes methods for the determination of calcium, magnesium, copper,
lead, zinc, nickel, manganese, cadmium, aluminum, iron, and sulfate content in lithium
carbonate, lithium hydroxide monohydrate, and lithium chloride.
This document is applicable to the determination of calcium, magnesium, copper, lead,
zinc, nickel, manganese, cadmium, aluminum, iron, and sulfate content in lithium
carbonate, lithium hydroxide monohydrate, and lithium chloride. The measurement
range of each element is shown in Table 1.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 6682, Water for analytical laboratory use -- Specification and test methods
GB/T 8170, Rules of rounding off for numerical values and expression and
judgement of limiting values
GB/T 17433, Foundation terms for chemical analysis of metallurgical products
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 17433
apply.
4 Principle
Lithium carbonate and lithium hydroxide monohydrate are decomposed with nitric acid.
Lithium chloride is dissolved in water. In nitric acid medium, the matrix matching
standard curve method is used to determine the contents of calcium, magnesium, copper,
lead, zinc, nickel, manganese, cadmium, aluminum, iron, and sulfate on an inductively
coupled plasma atomic emission spectrometer.
5 Reagents or materials
Unless otherwise stated, only reagents confirmed to be of guaranteed reagents are used
in the analysis.
5.1 Water, GB/T 6682, grade 2.
5.2 High purity lithium carbonate (mass fraction is greater than 99.99%, Fe, Cu, Pb, Zn,
Ni, Ca, Mg, Mn, Cd, Al, are all less than 0.0001%).
5.3 Nitric acid (1+1).
5.4 Calcium standard storage solution: Weigh 0.2497 g of spectrally pure calcium
carbonate into a 200 mL beaker. Then add 20.00 mL of nitric acid (5.3) and dissolve at
low temperature until clear. Cool down. Transfer to a 100 mL volumetric flask. Use
water to set the volume constant. Shake well. 1 mL of this solution contains 1.0 mg of
calcium.
5.5 Magnesium standard storage solution: Weigh 0.1658 g of magnesium oxide [w
(MgO) ≥99.99%] that has been pre-burned at 800°C for 2 h and cooled to room
temperature in a desiccator into a 200 mL beaker. Add 20.00 mL of nitric acid (5.3).
Dissolve at low temperature until clear and cool. Transfer to a 100 mL volumetric flask.
Use water to set the volume constant. Shake well. 1 mL of this solution contains 1.0 mg
of magnesium.
5.6 Copper standard storage solution: Weigh 0.100 g of pure metallic copper (spectrally
pure, clean surface oxide before use) into a 200 mL beaker. Add 20.00 mL nitric acid
(5.3). Dissolve at low temperature until clear. Cool down. Transfer to a 100 mL
volumetric flask. Use water to set the volume constant. Shake well. 1 mL of this solution
contains 1.0 mg of copper.
5.7 Lead standard storage solution: Weigh 0.1077 g of spectrally pure lead dioxide into
a 200 mL beaker. Add 20.00 mL of nitric acid (5.3). Dissolve at low temperature until
clear. Cool down. Transfer to a 100 mL volumetric flask. Use water to set the volume
constant. Shake well. 1 mL of this solution contains 1.0 mg of lead.
5.8 Zinc standard storage solution: Weigh 0.1000 g of pure metallic zinc (spectrally
pure, clean surface oxide before use) into a 200 mL beaker. Add 20.00 mL of nitric acid
(5.3). Dissolve at low temperature until clear. Cool down. Transfer to a 100 mL
volumetric flask. Use water to set the volume constant. Shake well. 1 mL of this solution
contains 1.0 mg of zinc.
5.9 Nickel standard storage solution: Weigh 0.100 g of pure metallic nickel (spectrally
pure, clean surface oxide before use) into a 200 mL beaker. Add another 20.00 mL of
nitric acid (5.3). Dissolve at low temperature until clear. Cool down. Transfer to a 100
mL volumetric flask. Use water to set the volume constant. Shake well. 1 mL of this
solution contains 1.0 mg of nickel.
5.10 Manganese standard storage solution: Weigh 0.100 g of pure metallic manganese
(spectrally pure, clean surface oxide before use) into a 200 mL beaker. Add 20.00 mL
of nitric acid (5.3). Dissolve at low temperature until clear. Cool down. Transfer to a
100 mL volumetric flask. Use water to set the volume constant. Shake well. 1 mL of
this solution contains 1.0 mg of manganese.
5.11 Cadmium standard storage solution: Weigh 0.100 g of pure metal cadmium
(spectrally pure, clean surface oxide before use) into a 200 mL beaker. Add 20.00 mL
of nitric acid (5.3). Dissolve at low temperature until clear. Cool down. Transfer to a
100 mL volumetric flask. Use water to set the volume constant. Shake well. 1 mL of
this solution contains 1.0 mg of cadmium.
5.12 Aluminum standard storage solution: Weigh 0.100 g of pure metallic aluminum
(spectrally pure, clean surface oxide before use) into a 200 mL beaker. Add 20.00 mL
of nitric acid (5.3). Dissolve at low temperature until clear. Cool down. Transfer to a
100 mL volumetric flask. Use water to set the volume constant. Shake well. 1 mL of
this solution contains 1.0 mg of aluminum.
5.13 Iron standard storage solution: Weigh 0.100 g of pure metal wire (spectrally pure,
clean surface oxide before use) into a 200 mL beaker. Add 20.00 mL of nitric acid (5.3).
Dissolve in water bath until clear. Cool down. Transfer to a 100 mL volumetric flask.
Use water to set the volume constant. Shake well. 1 mL of this solution contains 1.0 mg
of iron.
5.14 Sulfate standard storage solution: Weigh 0.5446 g of potassium sulfate (mass
......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.