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YS/T 74.6-2010: Methods of chemical anaysis of cadmium. Part 6: Determination of zinc content. Flame atomic absorption spectrometry
Status: Valid YS/T 74.6: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 74.6-2010 | English | 209 |
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Methods of chemical anaysis of cadmium. Part 6: Determination of zinc content. Flame atomic absorption spectrometry
| Valid |
YS/T 74.6-2010
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| YS/T 74.6-1994 | English | 199 |
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(Cadmium chemical analysis. Flame atomic absorption spectrometry amount of zinc)
| Obsolete |
YS/T 74.6-1994
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PDF similar to YS/T 74.6-2010
Basic data | Standard ID | YS/T 74.6-2010 (YS/T74.6-2010) | | Description (Translated English) | Methods of chemical anaysis of cadmium. Part 6: Determination of zinc content. Flame atomic absorption spectrometry | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.70 | | Word Count Estimation | 8,884 | | Date of Issue | 2010-11-22 | | Date of Implementation | 2011-03-01 | | Older Standard (superseded by this standard) | YS/T 74.6-1994 | | Regulation (derived from) | MIIT (2010) No. 126 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the amount of zinc cadmium determination. This standard applies to the determination of the amount of zinc cadmium. Measuring range: 0. 0002% to 0. 025 % | YS/T 74.6-2010: Methods of chemical anaysis of cadmium. Part 6: Determination of zinc content. Flame atomic absorption 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.
Methods of chemical anaysis of cadmium.Part 6. Determination of zinc content.Flame atomic absorption spectrometry
ICS 77.120.70
H13
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS/T 74.6-1994
Methods for chemical analysis of cadmium
Part 6. Determination of zinc contents
Flame Atomic Absorption Spectrometry
Part 6. Determinationofzinccontent-
Issued on. 2010-11-22
2011-03-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 74-2010 "cadmium chemical analysis method" is divided into 11 parts.
--- Part 1. Determination of arsenic content by hydride generation - atomic fluorescence spectrometry;
--- Part 2. Determination of antimony content hydride generation - atomic fluorescence spectrometry;
--- Part 3. Determination of nickel content by electrothermal atomic absorption spectrometry;
--- Part 4. Determination of lead content by flame atomic absorption spectrometry;
--- Part 5. Determination of the amount of copper diethyl dithiocarbamate spectrophotometry lead;
--- Part 6. Determination of zinc content - Flame atomic absorption spectrometry;
--- Part 7. Determination of iron content of 1,10 phenanthroline spectrophotometry;
--- Part 8. Determination of thallium content of crystal violet spectrophotometry;
--- Part 9. Determination of tin content by hydride generation - atomic fluorescence spectrometry;
--- Part 10. Determination of the amount of silver by flame atomic absorption spectrometry;
--- Part 11. Inductively coupled plasma atomic arsenic, antimony, nickel, lead, copper, zinc, iron, thallium, tin and silver content of the emitted light
Spectroscopy.
Part is divided into 6 sections.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The partial replacement of YS/T 74.6-1994 "cadmium chemical analysis by flame atomic absorption spectrometry zinc amount", this part of the original standard
Quasi compared to the main changes are as follows.
--- Text format has been modified;
--- Complements the precision, quality assurance and control provisions;
--- Increase the warning prompt;
--- Increasing the test report clause.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is responsible for drafting unit. MCC Huludao Nonferrous Metals Group Co., Ltd.
This section is drafted. Shaanxi Dongling Smelting Co., Ltd.
Participated in the drafting of this section. Beijing Mining Research Institute, MCC Huludao Nonferrous Metals Group Co., Ltd.
The main drafters of this section. Li Xue, Zhou Wei, Jiang Tao find pool Fenghua, Xie Aijing.
This part of the standard replaces the previous editions are.
--- YS/T 74.6-1994;
--- GB/T 2131-1980.
Methods for chemical analysis of cadmium
Part 6. Determination of zinc contents
Flame Atomic Absorption Spectrometry
Warning --- Use this section shall be a person experiences regular laboratory work, and have the use of atomic absorption spectrometer skills
In strict accordance with safety procedures atomic absorption spectrometer operation.
1 Scope
YS/T of the provisions of section 74 of the method for the determination of cadmium in zinc content.
This section applies to the determination of cadmium in zinc content. Measurement range. 0.0002% to 0.025%.
2 principle of the method
Sample decomposition with nitric acid, in dilute nitric acid medium, using air - acetylene flame atomic absorption spectrometer at a wavelength of 213.9nm measured
Absorbance. Cadmium absorption of the substrate with no background, obtained with a standard curve method of zinc content.
3 Reagents
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled water or equivalent purity.
3.1 nitrate (ρ1.42g/mL), pure class distinctions.
3.2 hydrochloric acid (ρ1.19g/mL), pure class distinctions.
3.3 nitric acid (11).
3.4 nitric acid (13).
3.5 hydrochloride (11).
3.6 hydrochloride (12).
3.7 Cadmium matrix solution. Weigh 50g surface-cleaning metal cadmium (wCd≥99.99% and wZn≤0.0001%), to burn 500mL
Cup, fractional total added 250mL ~ 300mL nitric acid (3.4) until after the violent reaction on low heat until dissolved completely. Boiling nitrogen purge
Oxide, cooled and transferred to 500mL volumetric flask, dilute with water to volume, and mix. This solution 1mL containing 100mg cadmium.
3.8 standard zinc stock solution. Weigh 0.1000g zinc metal (wZn≥99.99%) into 200mL beaker, was added 10mL of hydrochloric acid
(3.5), After vigorous reaction, heated and boiled to dissolve completely, removed, cooled to room temperature, transferred to 1000mL volumetric flask, dilute to the mark with water
Degree, and mix. This solution 1mL containing 100μg zinc.
3.9 Zinc standard solution. Pipette 50.00mL standard zinc stock solution (3.8) in 1000mL volumetric flask, was added 5mL hydrochloric acid (3.6),
Diluted with water to the mark, and mix the solution 1mL containing 5μg zinc.
4 Instrument
Atomic absorption spectrometer, with zinc hollow cathode lamp.
Under optimum working conditions, who can reach the following indicators are, can be used.
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