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GB/T 6150.11-2008: Methods for chemical analysis of tungsten concentrates -- Determination of zinc content -- Flame atomic absorption spectrometric method
Status: Valid GB/T 6150.11: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 6150.11-2008 | English | 139 |
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Methods for chemical analysis of tungsten concentrates -- Determination of zinc content -- Flame atomic absorption spectrometric method
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GB/T 6150.11-2008
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| GB/T 6150.11-1985 | English | 199 |
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Methods for chemical analysis of tungsten concentrates--The atomic absorption spectrophotometric method for the determination of copper content
| Obsolete |
GB/T 6150.11-1985
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Basic data | Standard ID | GB/T 6150.11-2008 (GB/T6150.11-2008) | | Description (Translated English) | Methods for chemical analysis of tungsten concentrates -- Determination of zinc content -- Flame atomic absorption spectrometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H63 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,615 | | Date of Issue | 2008-03-31 | | Date of Implementation | 2008-09-01 | | Older Standard (superseded by this standard) | GB/T 6150.13-1985 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the determination of tungsten concentrate zinc content. This section applies to the determination of tungsten concentrate zinc content. | GB/T 6150.11-2008: Methods for chemical analysis of tungsten concentrates -- Determination of zinc content -- Flame atomic absorption spectrometric method
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Methods for chemical analysis of tungsten concentrates. Determination of zinc content. Flame atomic absorption spectrometric method
ICS 77.120.99
H63
National Standards of People's Republic of China
Replacing GB/T 6150.13-1985
Methods for chemical analysis of tungsten concentrates
Determination of zinc content
Flame Atomic Absorption Spectrometry
Posted 2008-03-31 2008-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 6150 "Methods for chemical analysis of tungsten concentrates" is divided into 17 parts.
Determination of GB/T 6150.1 Methods for chemical analysis of tungsten concentrates of tungsten trioxide amount of ammonium tungstate burning gravimetric method
GB/T 6150.2 Methods for chemical analysis of tungsten concentrates - Determination of tin content of potassium iodate volumetric method and hydride generation atomic absorption spectrometry
GB/T 6150.3 Methods for chemical analysis of tungsten concentrates - Determination of phosphorus content of phosphorus molybdenum yellow spectrophotometry
Determination of GB/T 6150.4 Methods for chemical analysis of tungsten concentrates sulfur content of high frequency infrared absorption method
GB/T 6150.5 Methods for chemical analysis of tungsten concentrates - Determination of calcium content - EDTA volumetric method and flame atomic absorption spectrometry
GB/T 6150.6 Methods for chemical analysis of tungsten concentrates - Determination of hygroscopic water gravimetric method
GB/T 6150.7 Methods for chemical analysis of tungsten concentrates - Determination of the amount of tantalum and niobium plasma emission spectroscopy and spectrophotometry
GB/T 6150.8 Methods for chemical analysis of tungsten concentrates - Determination of molybdenum content - Thiocyanate spectrophotometric
GB/T 6150.9 Methods for chemical analysis of tungsten concentrates - Determination of copper content - Flame atomic absorption spectrometry
GB/T 6150.10 Methods for chemical analysis of tungsten concentrates - Determination of lead content by flame atomic absorption spectrometry
GB/T 6150.11 Methods for chemical analysis of tungsten concentrates of zinc content - Flame Atomic Absorption Spectrometry
GB/T 6150.12 Methods for chemical analysis of tungsten concentrates - Determination of silicon dioxide content and weight of molybdenum blue spectrophotometric method
Hydride atomic GB/T 6150.13 Methods for chemical analysis of tungsten concentrates the amount of arsenic absorption spectroscopy and spectroscopic DDTC-Ag
Spectrophotometry
GB/T 6150.14 Methods for chemical analysis of tungsten concentrates - Determination of manganese content of ammonium ferrous sulfate volumetric method and flame atomic absorption spectrometry
GB/T 6150.15 Methods for chemical analysis of tungsten concentrates bismuth content - Flame Atomic Absorption Spectrometry
GB/T 6150.16 Methods for chemical analysis of tungsten concentrates - Determination of iron content sulfonic acid spectrophotometry
Hydride atomic GB/T 6150.17 Methods for chemical analysis of tungsten concentrates antimony content absorption spectrometry
This is Part 11 GB/T 6150's.
This Part replaces GB/T 6150.13-1985 "Methods for chemical analysis of tungsten concentrates ammonium hydroxide - ammonium chloride polarographic determination of zinc
the amount".
Section compared with the GB/T 6150.13-1985 The main changes are as follows.
--- Measured by the polarographic method to flame atomic absorption spectrometry;
--- Expands the measurement range;
--- Increased 8.1 repeatability terms.
The standard proposed by China Nonferrous Metals Industry Association.
This standard Nonferrous Metals by the National Standardization Technical Committee.
This standard by Ganzhou Nonferrous Metallurgy Research Institute, China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting.
This section was drafted by Ganzhou Nonferrous Metallurgy Research Institute.
This section is Zigong Carbide limited liability company, Shizhuyuan Nonferrous Metals Co., Ltd. participated in the drafting.
The main drafters of this section. Zhongdao Guo, Pan Jianzhong, Zhangjiang Feng.
This part certifier. Li Huiling, Qiu Qiu, Wangzhou Lin.
This part of the standard replaces the previous editions are.
--- GB/T 6150.13-1985.
Methods for chemical analysis of tungsten concentrates
Determination of zinc content
Flame Atomic Absorption Spectrometry
1 Scope
This section provides the determination of tungsten concentrates zinc content.
This section applies to the determination of tungsten concentrate zinc content. Measurement range. 0.005% to 0.50%.
2 Method summary
Samples in a boiling water bath to decompose hydrochloric acid, nitric acid, perchloric acid was dissolved by heating to take the thick white smoke, cooling, nitric acid medium, in atom
Absorption Spectrometer at a wavelength of 213.9nm, air - acetylene flame measured absorbance of zinc, the zinc content is calculated using the working curve method. Tungsten concentrate
The impurities interfere with the determination.
3 Reagents
Unless otherwise indicated, this part of the reagents used are in line with national standards or industry standard analytical reagent, the water are distilled water.
3.1 hydrochloride (ρ1.19g/mL).
Nitrate 3.2 (ρ1.42g/mL).
3.3 perchloric acid (ρ1.67g/mL).
3.4 nitric acid solution (1 + 1).
3.5 standard zinc stock solution. Weigh 0.1000g pure metallic zinc [(Zn) ≥99.99%] in 300mL beaker, add 100mL nitrate
Acid solution (3.4), dissolved by heating, cooling and 1000mL flask in constant volume, mix, and this solution 1mL containing 100μg zinc.
4 Instrument
Atomic absorption spectrometer, with zinc hollow cathode lamp.
Under optimum working conditions for those who can reach the following indicators can be used.
--- Characteristic concentration. measurement solution with the matrix consistent solution, characterized in zinc concentration should be less than 0.037μg/mL.
--- Precision. standard solution with the highest concentration of 10 times the absorbance measurements, the standard deviation should not exceed 1.5% of the average absorbance;
With the lowest concentration of standard solution (not "zero" concentration of the standard) measuring the absorbance of 10 times, the standard deviation should not exceed the maximum
The average concentration of 0.5% absorbance.
--- Linear curve. The curve is divided into five sections according to concentration, absorbance difference between the absorbance difference between the highest and the lowest segment of the segment
Ratio should not be less than 0.7.
5 Sample
5.1 Sample size of less than 0.074mm.
5.2 sample was pretreated at 105 ℃ ~ 110 ℃ drying 2h, placed in a desiccator to cool to room temperature.
Step 6 Analysis
6.1 Sample
Table 1 sample was weighed (accurate to 0.0001g).
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