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YS/T 227.7-2010 English PDF

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YS/T 227.7-2010: Methods for chemical analysis of tellurium. Part 7: Determination of sulphur content. Inductively coupled plasma-atomic emission spectrometry

YS/T 227.7: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
YS/T 227.7-2010	English	209	Add to Cart	3 days [Need to translate]	Methods for chemical analysis of tellurium. Part 7: Determination of sulphur content. Inductively coupled plasma-atomic emission spectrometry		YS/T 227.7-2010
YS/T 227.7-1994	English	199	Add to Cart	2 days [Need to translate]	Determination of sulphur content in tellurium--Barium sulfate turbidimetry	Obsolete	YS/T 227.7-1994

PDF similar to YS/T 227.7-2010

Standard similar to YS/T 227.7-2010

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 227.7-2010 (YS/T227.7-2010)
Description (Translated English)	Methods for chemical analysis of tellurium. Part 7: Determination of sulphur content. Inductively coupled plasma-atomic emission spectrometry
Sector / Industry	Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard	H13
Classification of International Standard	77.120.99
Word Count Estimation	6,677
Date of Issue	2010-11-22
Date of Implementation	2011-03-01
Older Standard (superseded by this standard)	YS/T 227.7-1994
Regulation (derived from)	MIIT (2010) No. 126
Issuing agency(ies)	Ministry of Industry and Information Technology
Summary	This standard specifies the tellurium Determination of sulfur content. This standard applies to the determination of the sulfur content of tellurium. Measuring range: 0. 0007% to 0. 01%.

YS/T 227.7-2010: Methods for chemical analysis of tellurium. Part 7: Determination of sulphur content. Inductively coupled plasma-atomic emission 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 for chemical analysis of tellurium.Part 7. Determination of sulphur content.Inductively coupled plasma-atomic emission spectrometry ICS 77.120.99 H13 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 227.7-1994 Methods for chemical analysis of tellurium Part 7. determination of sulfur content Inductively coupled plasma atomic emission spectrometry Part 7. Determinationofsulphurcontent- 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 parts. --- 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 7. This section drafted in accordance with GB/T 1.1-2009 given rules. This part is the "determination of tellurium in sulfur content (barium sulfate turbidimetry)" YS/T 227.7-1994 revision. And YS/T 227.7-1994 Compared to the main changes are as follows. --- Changed the measurement method using inductively coupled plasma atomic emission spectrometry; --- Measurement range from 0.001% to 0.01% by the expansion of 0.0007% to 0.010%; --- 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. Liaoning CIQ. Participated in the drafting of this section. Zhuzhou Smelter Group Co., Ltd., MCC Huludao Nonferrous Metals Group Co., Ltd. The main drafters of this section. Li Yan, Dong Xiuwen, HE Sheng, Peng Xinxiang, Liu Limin. This part of the standard replaces the previous editions are. --- YS/T 227.7-1994; --- GB/T 2143-1980. Methods for chemical analysis of tellurium Part 7. determination of sulfur content Inductively coupled plasma atomic emission spectrometry 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 sulfur content. This section applies to the determination of tellurium in sulfur content. Measurement range. 0.0007% to 0.01%.

2 principle of the method

Sample decomposition with nitric acid and potassium chlorate, tellurium tellurium dioxide removed by hydrolysis. In acidic medium, the solution is introduced into the inductively coupled plasma Emission spectrometer to measure the spectral intensity of sulfur. According to the working curve, calculate the amount of sulfur.

3 Reagents

Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity. 3.1 potassium chlorate, pure class distinctions. 3.2 nitrate (ρ1.42g/mL), pure class distinctions. 3.3 nitric acid (11). 3.4 sulfur standard stock solution. Weigh 0.5435g reference reagent potassium (previously dried at 120 ℃ to constant weight), placed in 200mL beaker In, dissolved in water and transferred to 1000mL volumetric flask, dilute to the mark. This solution 1mL containing 100μg sulfur. 3.5 sulfur standard solution. Pipette 20.00mL sulfur standard stock solution (3.4), placed in 200mL volumetric flask, dilute to the mark, shake uniform. This solution 1mL containing 10μg sulfur.

4 Instrument

Inductively coupled plasma atomic emission spectrometer. The correlation coefficient of linear calibration curve must be greater than 0.999. Inductively coupled plasma atomic emission spectrometer operating conditions refer to Table 1, the recommended analytical line of sulfur is 180.7nm. Table 1 instrument reference operating conditions RF power/W auxiliary gas flow rate/(L/min) fog chamber pressure/MPa pump speed/(r/min) exposure time/s 0.5 0.2 12 010 1150

5 Sample

Sample size not greater than 0.25mm.

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