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YS/T 710.6-2009Method for chemical analysis of cobalt oxide. Part 6: Determination of calcium, cadmium, copper, iron, magnesium, manganese, nickel, lead, zinc content. Inductively coupled plasma-atomic emission spectromertry (English PDF)

氧化钴化学分析方法第6部分：钙、镉、铜、铁、镁、锰、镍、铅和锌量的测定电感耦合等离子体发射光谱法

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Issued by

Ministry of Industry and Information Technology of the People's Republic of China

Level / Type

National · Recommended

Issue date

December 4, 2009

Implementation date

June 1, 2010

Scope

YS/T 710.6-2009 is the English-translated version of 氧化钴化学分析方法第6部分：钙、镉、铜、铁、镁、锰、镍、铅和锌量的测定电感耦合等离子体发射光谱法.

YS/T 710.6-2009 — This Part of YS/T 710 specifies the determination method of calcium, cadmium, copper, iron, magnesium, manganese, nickel, lead, zinc content in cobalt oxide.

This Part applies to the determination of calcium, cadmium, copper, iron, magnesium, manganese, nickel, lead, zinc content in cobalt oxide. See Table 1 for the determination range Table 1 -- Determination range of each element

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Document preview — YS/T 710.6-2009

National Standard of the People's Republic of China

ICS: 77.120.70
Classification: H 13

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

Foreword...3
1 Scope...4
2 Method summary...4
3 Reagents...4
4 Instruments...5
5 Analysis steps...5
6 Calculation of analysis result...6
7 Precision...6
8 Quality assurance and control...7

Foreword

YS/T 710, Method for chemical analysis of cobalt oxide, is divided into 6 parts:

-- Part 1: Determination of cobalt content - Potentiometric method;

-- Part 2: Determination of sodium content - Flame atomic absorption

spectrometry method;

-- Part 3: Determination of sulphur content - High frequency combustion-

infrared absorption method;

-- Part 4: Determination of arsenic content - Atomic fluorescence

spectrometry;

-- Part 5: Determination of silicon content - Molybdenum blue

spectrophotometry;

-- Part 6: Determination of calcium, cadmium, copper, iron, magnesium,

manganese, nickel, lead, zinc content - Inductively coupled plasma-

atomic emission spectrometry.

This Part is Part 6 of YS/T 710.

This Part shall be under the jurisdiction of National Technical Committee 243

on Nonferrous Metals of Standardization Administration of China.

The responsible drafting organizations of this Part: Zhuzhou Smelter Group

Company Limited.

The drafting organizations of this Part: Ganzhou Cobalt Tungsten Co., Ltd.

The participating drafting organizations of this Part: Zhuzhou Smelter Group

Company Limited, Beijing General Research Institute of Mining & Metallurgy.

The drafters of this Part: Wang Li, Liu Donglian, Wan Jianhong, Liu Yan, Yu Li,

Liu Chunfeng.

Method for chemical analysis of cobalt oxide -

Part 6: Determination of calcium, cadmium, copper,

iron, magnesium, manganese, nickel, lead, zinc

content - Inductively coupled plasma-atomic emission

spectrometry

1 Scope

This Part of YS/T 710 specifies the determination method of calcium, cadmium,

copper, iron, magnesium, manganese, nickel, lead, zinc content in cobalt oxide.

This Part applies to the determination of calcium, cadmium, copper, iron,

magnesium, manganese, nickel, lead, zinc content in cobalt oxide. See Table 1

for the determination range

Table 1 -- Determination range of each element

2 Method summary

Dissolve the sample in aqua regia; in a nitric acid medium, according to the

optimized working conditions of the instrument and the optimized analysis

spectrum, use a standard solution, which is similar to the sample composition,

that matches with the cobalt matrix; use the ICP-AES instrument to determine

the Ca, Cd, Cu, Fe, Mg, Mn, Ni, Pb, Zn content in the cobalt oxide.

3 Reagents

3.1 Hydrochloric acid (rho1.19 g/mL), GR.

3.2 Nitric acid, (rho1.42 g/mL), GR.

3.3 Aqua regia: 3 parts of hydrochloric acid (3.1) + 1 part of nitric acid (3.2).

conditions, add 3 mL ~ 5 mL of perchloric acid (3.4) appropriately to smoke until

it is nearly dry.

5.3.2 Blow in a small amount of water; cover the watch glass and boil; cool to

room temperature; add 5 mL of nitric acid (3.2); transfer to a 100 mL volumetric

flask; use water to dilute to the mark; shake well; use as a test solution for later

use.

5.3.3 Measure each point mixed standard solution and test solution under the

optimized working conditions of the instrument; the instrument automatically

draws a working curve.

5.3.4 Test the to-be-tested solution and the blank.

6 Calculation of analysis result

6.1 The instrument, according to the standardization or calibrated

standardization work curve and the set element, automatically processes the

data, calculates and outputs the content of each measured element.

6.2 Keep two significant digits for the analysis result.

7 Precision

7.1 Repeatability

For the measured values of the two independent test results that are obtained

under repetitive conditions, within the average range that is given below, the

absolute difference between the two test results does not exceed the

repeatability limit (r); the case of exceeding the repeatability limit (r) is not more

than 5%; the repeatability limit (r) is obtained by linear interpolation according

to the data in Table 4.

Table 4 -- Repeatability limit

7.2 Reproducibility

For the measured values of the two independent test results that are obtained

under reproductive conditions, within the average range that is given below, the

absolute difference between the two test results does not exceed the

reproducibility limit (R); the case of exceeding the reproducibility limit (R) is not

Note: The repeatability limit (r) is 2.8Sr; Sr is the repeatability standard deviation.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 pages — is available in the English PDF.

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