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Methods for chemical analysis of thallium. Part 2: Determination of iron content. Phenanthrolin spectrophotometry
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YS/T 569.2-2015
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| YS/T 569.2-2006 | English | 199 |
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Determination of the amount of thallium in iron (o-phenanthroline absorbance spectrophotometry)
| Obsolete |
YS/T 569.2-2006
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Basic data | Standard ID | YS/T 569.2-2015 (YS/T569.2-2015) | | Description (Translated English) | Methods for chemical analysis of thallium. Part 2: Determination of iron content. Phenanthrolin spectrophotometry | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H14 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,669 | | Date of Issue | 2015-04-30 | | Date of Implementation | 2015-10-01 | | Older Standard (superseded by this standard) | YS/T 569.2-2006 | | Regulation (derived from) | Ministry of Industry and Information Technology Announcement (2015 No. 28) | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This Standard specifies the method for the determination of iron content of thallium. This section applies to the determination of iron content of thallium. Measuring range: 0.0005% to 0.015%. |
YS/T 569.2-2015: Methods for chemical analysis of thallium. Part 2: Determination of iron content. Phenanthrolin spectrophotometry ---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 for chemical analysis of thallium Part 2. Determination of iron content Phenanthrolin spectrophotometry.
ICS 77.120.99
H14
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS/T 569.2-2006
Chemical analysis of thallium
Part 2. Determination of iron content
Phenanthroline spectrophotometry
Part 2. Determinationofironcontent-
Issued on. 2015-04-30
2015-10-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 569 "thallium chemical analysis method" is divided into 10 parts.
--- Part 1. Determination of copper content copper reagent chloroform extraction spectrophotometry;
--- Part 2. Determination of iron content - Phenanthroline spectrophotometric method;
--- Part 3. Determination of mercury content of Diphenylthiocarbazone extraction spectrophotometry;
--- Part 4. Determination of zinc content of benzene extraction dithizone spectrophotometry;
--- Part 5. Determination of cadmium content of benzene extraction dithizone spectrophotometry;
--- Part 6. Determination of lead content of benzene extraction dithizone spectrophotometry;
--- Part 7. Determination of the amount of chrome aluminum Azure S Spectrophotometry;
--- Part 8. Determination of indium content of crystal violet benzene extraction spectrophotometry;
--- Part 9. Determination of the amount of silicon silicon molybdenum blue isoamyl alcohol extraction spectrophotometric method;
--- Part 10. Determination of the amount of thallium Na2EDTA titration.
This section YS/T 569 Part 2.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The partial replacement of YS/T 569.2-2006 "Thallium - Determination of iron content (o-phen coffee absorptiometry)" (the original GB 2592.2-1981).
This portion of YS/T 569.2-2006 compared to the main changes are as follows.
--- Text format has been modified;
--- Increased test reporting requirements.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) and focal points.
This section is drafted. Hunan Nonferrous Metal Research Institute, Hunan Nonferrous Metals Group Co., Ltd. Shuikoushan, Entry-Exit Inspection and Fangchenggang
Quarantine Bureau, Beijing Mining Research Institute, Zhuzhou Smelter Group Co., Ltd.
The main drafters of this section. Pangwen Lin, Li Bing, Li Yan, Zeng Guangming, Xiabing Wei, Xie Yu group Ruangui Wu Feng advanced Lihua Chang to De Lei,
Zhang Dongguang.
This part of the standard replaces the previous editions are.
--- GB 2592.2-1981;
--- YS/T 569.2-2006.
Chemical analysis of thallium
Part 2. Determination of iron content
Phenanthroline spectrophotometry
1 Scope
YS/T 569 This part provides for determination of thallium in iron content.
This section applies to the determination of thallium in iron content. Measurement range. 0.0005% to 0.015%.
2 Method summary
Sample dissolved in nitric acid, acetic acid at pH 3.7 - sodium acetate medium, divalent iron and phenanthroline generate water-soluble complex of red
Material, a spectrophotometer at a wavelength of 510nm measured absorbance.
3 Reagents
3.1 nitric acid (ρ = 1.42g/mL), of high purity.
3.2 nitric acid (11), high-purity.
3.3 Ammonia (12), high purity.
3.4 ascorbic acid solution (10g/L), the time is now equipped with.
3.5 acetic acid (0.6mol/L).
3.6 sodium acetate solution (2mol/L).
3.7 acetic acid - sodium acetate buffer (pH value 3.7). Pipette 27mL acetic acid solution (3.5), and 3mL of sodium acetate solution (3.6) were mixed,
Diluted with water to 100mL, shake.
3.8 phenanthroline solution (2g/L). Weigh 0.2g phen, was dissolved in 20mL of anhydrous ethanol, dilute with water to 100mL, shake.
3.9 iron standard stock solution. Weigh 0.1000g metallic iron (wFe≥99.99%) placed in 100mL beaker, add 5mL nitrate
Acid (3.2), heat gently to dissolve, was added 25mL of water, heated to boiling, cooled and transferred to 1000mL volumetric flask, add 10mL of nitric acid (3.1),
Diluted with water to the mark. This solution 1mL iron 100μg.
3.10 Iron standard solution. Pipette 5.00mL iron standard stock solution (3.9) in 100mL volumetric flask, dilute to the mark, shake, this
Solution 1mL iron 5μg.
4 Instrument
Spectrophotometer.
Step 5 Analysis
5.1 Sample
Table 1. Weigh the sample to the nearest 0.0001g.
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