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YS/T 820.10-2012Methods for chemical analysis of laterite nickel ores - Part 10: Determination of calcium, cobalt, copper, magnesium, manganese, nickel, phosphate and zinc content - Inductively coupled plasma atomic emission spectrometry (English PDF)

红土镍矿化学分析方法第10部分：钙、钴、铜、镁、锰、镍、磷和锌量的测定电感耦合等离子体-原子发射光谱法

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Issued by

Ministry of Industry and Information Technology of PRC

Level / Type

National · Recommended

Issue date

November 7, 2012

Implementation date

March 1, 2013

Scope

YS/T 820.10-2012 is the English-translated version of 红土镍矿化学分析方法第10部分：钙、钴、铜、镁、锰、镍、磷和锌量的测定电感耦合等离子体-原子发射光谱法.

YS/T 820.10-2012 — This part of YS/T 820 specifies the method for determining calcium, cobalt, copper, magnesium, manganese, nickel, phosphate and zinc content in laterite nickel ores.

This part applies to the simultaneous determination of calcium, cobalt, copper, magnesium, manganese, nickel, phosphorus and zinc contents in laterite nickel ores.

The range of determination is as shown in Table 1. Table 1 -- Range of determination (mass fraction)

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Document preview — YS/T 820.10-2012

National Standard of the People's Republic of China

ICS: 73.060
Classification: D 04

Issued by: Ministry of Industry and Information Technology of PRC

Foreword...3
1 Scope...6
2 Normative references...6
3 Summary of methods...7
4 Reagents...7
5 Instruments...9
6 Specimen...10
7 Analytical procedures...10
8 Calculation of analytical results...11
9 Precision...12
10 Test report...13

Foreword

This part was drafted in accordance with the rules given in GB/T 1.1-2009.

YS/T 820-2012 "Methods for chemical analysis of laterite nickel ores" is divided

into 26 parts.

- Part 1.Determination of nickel content - Flame atomic absorption

spectrometry;

- Part 2.Determination of nickel content - Dimetylglyoxime

spectrophotometry;

- Part 3.Determination of total iron content - Potassium dichromate titration;

- Part 4.Determination of phosphorus content - Phosphorus molybdenum

blue spectrophotometry;

- Part 5.Determination of cobalt content - Flame atomic absorption

spectrometry;

- Part 6.Determination of copper content - Flame atomic absorption

spectrometry;

- Part 7.Determination of calcium and magnesium content - Flame atomic

absorption spectrometry;

- Part 8.Determination of silica content - Potassium silicafluoride titrimetric

method;

- Part 9.Determination of scandium and cadmium contents - Inductively

coupled plasma mass spectrometry;

- Part 10.Determination of calcium, cobalt, copper, magnesium, manganese,

nickel, phosphate and zinc content - Inductively coupled plasma atomic

emission spectrometry;

- Part 11.Determination of fluorine and chlorine contents - Ion

chromatography;

- Part 12.Determination of manganese content - Flame atomic absorption

spectrometry;

- Part 13.Determination of lead content - Flame atomic absorption

spectrometry;

- Part 14.Determination of the zinc content - Flame atomic absorption

spectrometry;

- Part 15.Determination of cadmium content - flame atomic absorption

spectrometry;

- Part 16.Determination of carbon and sulfur content - High-frequency

combustion with infrared absorption spectrometry;

- Part 17.Determination of arsenic, antimony and bismuth contents - Hydride

generation-atomic fluorescence spectrometry;

- Part 18.Determination of mercury content - Cold atomic absorption

spectrometry;

- Part 19.Determination of aluminum, chromium, iron, magnesium,

manganese, nickel and silicon contents - Energy-dispersive X-ray

fluorescence spectroscopy;

- Part 20.Determination of aluminum content - EDTA titration;

- Part 21.Determination of chromium content - The ammonium-ferrous

sulfate titration method;

- Part 22.Determination of Magnesium Content - EDTA Titration;

- Part 23.Determination of cobalt, iron, nickel, phosphorus, aluminum oxide,

calcium oxide, chromium oxide, magnesium oxide, manganese oxide,

silicon dioxide and titanium dioxide content - Wavelength dispersive;

- Part 24.Determination hygroscopic moisture content - Gravimetric method;

- Part 25.Determination of combined water content - Gravimetric method;

- Part 26.Determination of loss on ignition - Gravimetric method.

This part is part 10 of YS/T 820-2012.

This standard shall be under the jurisdiction of the National Nonferrous Metals

Standardization Technical Committee (SAC/TC 243).

Responsible drafting organizations of this standard. Beijing Research Institute

of Mining and Metallurgy, Bayuquan Entry-Exit Inspection and Quarantine

Bureau of the People's Republic of China, Jinchuan Group Co., Ltd.

Drafting organizations of this standard. Jinchuan Group Co., Ltd., Beijing

Research Institute of Mining and Metallurgy, Bayuquan Entry-Exit Inspection

and Quarantine Bureau of the People's Republic of China.

Participated drafting organizations of this standard. Changshu Entry-Exit

Inspection and Quarantine Bureau of the People's Republic of China, Northwest

Nonferrous Metal Research Institute, Nantong Entry-Exit Inspection and

Quarantine Bureau of the People's Republic of China, MCC Huludao

Nonferrous Metals Group Co., Ltd.

1 Scope

This part of YS/T 820 specifies the method for determining calcium, cobalt,

copper, magnesium, manganese, nickel, phosphate and zinc content in laterite

nickel ores.

This part applies to the simultaneous determination of calcium, cobalt, copper,

magnesium, manganese, nickel, phosphorus and zinc contents in laterite nickel

ores. The range of determination is as shown in Table 1.

Table 1 -- Range of determination (mass fraction)

2 Normative references

The following documents are essential to the application of this document. For

the dated documents, only the versions with the dates indicated are applicable

to this document; for the undated documents, only the latest version (including

all the amendments) are applicable to this standard.

YS/T 820.24-2012 Methods for chemical analysis of laterite nickel ores - Part

24 Determination hygroscopic moisture content - Gravimetric method

Element Range of determination / %

3 Summary of methods

The sample is decomposed by hydrochloric acid, nitric acid, hydrofluoric acid

and perchloric acid. The salts are dissolved by hydrochloric acid.

4 Reagents

Unless otherwise stated, only reagents identified as superior grade and the

distilled or deionized water or water of comparable purity are used in the

analysis.

4.1 Hydrochloric acid (rho1.19 g/mL).

4.2 Hydrochloric acid (1 + 1).

4.7 Calcium standard stock solution. WEIGH 1.2486 g of calcium carbonate

(wCaCO3 >= 99.99%, which is dried in advance at 105 °C ± 5 °C and cooled in a

desiccator to room temperature); PLACE it in a 300 mL beaker; ADD 20 mL of

water; MIX it uniformly; COVER the watch glass; carefully ADD hydrochloric

acid (4.2) to dissolve calcium carbonate; ADD another 30 mL of hydrochloric

acid (4.2); BOIL it to remove carbon dioxide; REMOVE and COOL it to room

temperature; USE water to rinse the watch glass and beaker's wall;

4.9 Copper standard stock solution. WEIGH 0.2000 g of metal copper (wCu >=

99.95%); PLACE it in a 300 mL beaker; COVER the watch glass; slowly ADD

40 mL of nitric acid (4.4) to dissolve it at low temperature; DRIVE out the

nitrogen oxide; REMOVE and COOL it to room temperature; USE water to rinse

the watch glass and beaker's wall; TRANSFER it into a 1000 mL volumetric

flask; USE water to dilute it to the mark; MIX it uniformly. 1 mL of this solution

contains 0.2 mg of copper.

4.11 Manganese standard stock solution. WEIGH 1.0000 g of metal

manganese (wMn >= 99.95%); PLACE it in a 300 mL beaker; COVER the watch

glass; slowly ADD 40 mL of nitric acid (4.4) to dissolve it at low temperature;

DRIVE out the nitrogen oxide;

4.12 Nickel standard stock solution. WEIGH 1.0000 g of metallic nickel (wNi >=

99.95%); PLACE it in a 300 mL beaker; COVER the watch glass; slowly ADD

40 mL of nitric acid (4.4) to dissolve it at low temperature; DRIVE out the

nitrogen oxide; REMOVE and COOL it to room temperature; USE water to rinse

the watch glass and beaker's wall; TRANSFER it into a 1000 mL volumetric

flask; USE water to dilute it to the mark; MIX it uniformly. 1 mL of this solution

contains 1 mg of nickel.

4.13 Phosphorus standard stock solution. WEIGH 0.4390 g of potassium

dihydrogen phosphate (reference reagent); DISSOLVE it in water; TRANSFER

it into a 1000 mL volumetric flask; USE water to dilute it to the mark; MIX it

uniformly. 1 mL of this solution contains 0.1 mg of phosphorus.

4.16 Mixed standard solution B. PIPETTE 20.00 mL of mixed standard solution

A (4.15) into a 200 mL volumetric flask; ADD 2 mL of hydrochloric acid (4.1);

USE water to dilute it to the mark; MIX it uniformly. 1 mL of this solution contains

1.0 µg of calcium, 1.0 µg of cobalt, 1.0 µg of magnesium, 1.0 µg of manganese,

1.0 µg of nickel, 0.5 µg of zinc, 0.1 µg of copper, 0.1 µg of phosphorus.

4.17 Blank solution. ADD a small amount of distilled water into a 1000 mL

volumetric flask; ADD 10 mL of hydrochloric acid (4.1); USE water to dilute it to

the mark; MIX it uniformly.

5 Instruments

5.1 Instrument and resolution

Inductively coupled plasma atomic emission spectrometer, which has an optical

resolution <= 0.008 nm (at 200 nm).

5.2 Analytical spectral line

5.4 Linearity of the working curve

The linearity of the working curve shall have a correlation coefficient greater

than 0.999.

6 Specimen

6.1 Specimen

The grain size of specimen shall be less than 160 µm.

7 Analytical procedures

7.1 Samples

WEIGH 0.20 g of sample, accurate to 0.0001 g.

7.2 Number of determinations

MAKE two determinations independently; TAKE the average value.

7.3 Blank test

MAKE a blank test along with the sample.

7.4 Determination

7.5 Drawing of the working curve

On the inductively coupled plasma-atomic emission spectrometer, USE the

series standard blank solution (4.17), mixed standard solution B (4.16), mixed

standard solution A (4.15) to determine the intensity of emitted light of calcium,

cobalt, copper, magnesium, manganese, nickel and phosphorus, zinc.

Respectively USE the mass fraction of the determined elements as the

abscissa, the intensity of emitted light as the ordinate, the instrument

automatically draws the working curve.

8 Calculation of analytical results

The amount of the determined element is calculated by the mass fraction wx of

the determined element, the value is expressed in %, which is calculated

according to formula (1) and formula (2).

9 Precision

9.1 Repeatability

For the determined values of the two independent test results which are

obtained under repetitive conditions, within the average range given below, the

absolute difference between the two test results does not exceed the

repeatability limit (r);

9.2 Reproducibility

For the determined values of the two independent test results which are

obtained under repetitive conditions, within the average range given below, the

absolute difference between the two test results does not exceed the

reproducibility limit (R); those which exceeds the reproducibility limit (R) does

not exceed 5%.

10 Test report

This clause specifies the contents of the test report. At least it shall give the

contents of the following aspects.

......

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 13 pages — is available in the English PDF.

Referenced standards

Normative references

YS/T 820.24-2012

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