YS/T 227.2-2010 English PDF

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YS/T 227.2-2010: Methods for chemical analysis of tellurium. Part 2: Determination of aluminium content. Chromazurol S-Tetradecyl bromide pyridine micellar solubilization spectrophotometry
Status: Valid

YS/T 227.2: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 227.2-2010	159	Add to Cart	3 days	Methods for chemical analysis of tellurium. Part 2: Determination of aluminium content. Chromazurol S-Tetradecyl bromide pyridine micellar solubilization spectrophotometry	Valid
YS/T 227.2-1994	199	Add to Cart	2 days	Determination of aluminum content in tellurium. Chromazurol S-tetradecyl pyridine bromide photometric method	Obsolete

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GB/T 3884.2   GB/T 3884.1   YS/T 252.1   YS/T 227.12   YS/T 227.1   YS/T 227.10   

Basic data

Standard ID: YS/T 227.2-2010 (YS/T227.2-2010)
Description (Translated English): Methods for chemical analysis of tellurium. Part 2: Determination of aluminium content. Chromazurol S-Tetradecyl bromide pyridine micellar solubilization spectrophotometry
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H13
Classification of International Standard: 77.120.99
Word Count Estimation: 6,640
Date of Issue: 2010-11-22
Date of Implementation: 2011-03-01
Older Standard (superseded by this standard): YS/T 227.2-1994
Regulation (derived from): MIIT (2010) No. 126
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the tellurium Determination of aluminum content. This standard applies to the determination of aluminum content of tellurium. Measuring range: 0. 0005% to 0. 0040%

YS/T 227.2-2010: Methods for chemical analysis of tellurium. Part 2: Determination of aluminium content. Chromazurol S-Tetradecyl bromide pyridine micellar solubilization 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 tellurium.Part 2. Determination of aluminium content.Chromazurol S-Tetradecyl bromide pyridine micellar solubilization spectrophotometry ICS 77.120.99 H13 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 227.2-1994 Methods for chemical analysis of tellurium Part 2. Determination of aluminum content Chromium Azure S- bromo cylpyridinium Solubilization spectrophotometry Part 2. Determinationofaluminiumcontent- 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 227 "tellurium chemical analysis methods," a total of 12 sections. --- Part 1. Determination of bismuth content hydride generation - atomic fluorescence spectrometry; --- Part 2. Determination of aluminum content Chromazurol S- bromo cylpyridinium micellar solubilization spectrophotometry; --- Part 3. Determination of lead content by flame atomic absorption spectrometry; --- Part 4. Determination of iron content - Phenanthroline spectrophotometric method; --- Part 5. determination of selenium content of 2,3-diaminonaphthalene spectrophotometry; --- Part 6. Determination of copper content of solid-liquid separation - flame atomic absorption spectrometry; --- Part 7. Determination of sulfur content by inductively coupled plasma atomic emission spectrometry; --- Part 8. magnesium, sodium content - Flame atomic absorption spectrometry; --- Part 9. Determination of tellurium content of potassium dichromate - ammonium ferrous sulfate volumetric method; --- Part 10. Determination of arsenic content by hydride generation - atomic fluorescence spectrometry; --- Part 11. Determination of silicon content of n-butanol silicon molybdenum blue spectrophotometric method; --- Part 12. bismuth, aluminum, lead, iron, selenium, copper, magnesium, sodium, arsenic content - Inductively coupled plasma atomic emission spectrometry. This is Part 2. This standard was drafted in accordance with GB/T 1.1-2009 given rules. Tellurium Determination of aluminum content in this section instead of YS/T 227.2-1994 "(S- bromo Chromazurol cylpyridinium micellar solubilization absorptiometry law)". Compared with YS/T 227.2-1994, this section has the following changes. --- Method name was changed to "Chromium Azure S- bromo cylpyridinium micellar solubilization spectrophotometry"; --- Complements the precision, quality assurance and control provisions; --- Complements the "test report" requirement. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is responsible for drafting unit. Zhuzhou Smelter Group Co., Ltd. This section is drafted. Sichuan Apollo Solar Energy Technology Co., Ltd. It participated in the drafting of this section. MCC Huludao Nonferrous Metals Group Co., Ltd., Henan Yuguang Gold & Lead Co., Ltd. The main drafters of this section. Yu Fang, Yan Ge, Li Dongmei, Liu Limin, Xu Lijun. This part of the standard replaces the previous editions are. --- YS/T 227.2-1994; --- GB/T 2138-1980. Methods for chemical analysis of tellurium Part 2. Determination of aluminum content Chromium Azure S- bromo cylpyridinium Solubilization spectrophotometry Warning. Use of this standard shall have a person experiences regular laboratory work. This standard does not point out all possible security issues. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.

1 Scope

YS/T of the provisions of the section 227 determination of tellurium in aluminum content. This section applies to the determination of tellurium in aluminum content. Measurement range. 0.0005% to 0.0040%.

2 principle of the method

Samples with hydrochloric acid, nitric acid dissolved in hydrochloric acid medium, sulfite reduction tellurite to tellurium acid precipitation to remove the matrix, in acetic acid - ammonium acetate buffer Red solution, aluminum and chrome azure S forming a colored complex with bromo cylpyridinium micellar solubilization at 610nm wavelength spectrophotometer At the determination of aluminum content.

3 Reagents

Unless otherwise indicated in the analysis using only recognized as an analytical reagent and water. 3.1 hydrochloride (ρ1.19g/mL), ultra-pure. Nitrate 3.2 (ρ1.42g/mL), ultra-pure. 3.3 Ammonia (ρ0.90g/mL), ultra-pure. 3.4 glacial acetic acid. 3.5 sulfurous acid (sulfur dioxide containing not less than 6.0%). 3.6 hydrochloride (11). 3.7 hydrochloride (120). 3.8 ammonia (120). 3.9 ascorbic acid solution (100g/L). 3.10 phenanthroline solution (10g/L). Weigh 1.0g phenanthroline, placed in 200mL beaker, add 2mL of hydrochloric acid (3.6) and less The amount of water, dissolved by heating, and diluted to 100mL. 3.11 chromium azure S (CAS) solution (1g/L). Store in a brown bottle. Bromo cylpyridinium 3.12 (TPB) solution (4g/L). Weigh 0.8g cylpyridinium bromo, dissolved in 200mL of warm water. 3.13 Chromium Azure S- bromo cylpyridinium mixed solution. Chromium Azure S solution (3.11), brominated tetradecyl pyridine solution (3.12) by Mixed in equal volumes, shaken, filtered, and stored in a brown bottle, valid for one week. 3.14 acetic acid solution (4mol/L). 3.15 ammonium acetate (4mol/L). 3.16 acetic acid - ammonium acetate buffer solution. acetic acid solution (3.14), a solution of ammonium acetate (3.15) by volume (1.10) were mixed, shaken and filtered. ......

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