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GB/T 6150.7-2008: Methods for chemical analysis of tungsten concentrates -- Determination of tantalum content and niobium content -- Inductively coupled plasma emission spectrometry and spectrophotometry
Status: Valid GB/T 6150.7: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 6150.7-2008 | English | 209 |
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Methods for chemical analysis of tungsten concentrates -- Determination of tantalum content and niobium content -- Inductively coupled plasma emission spectrometry and spectrophotometry
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GB/T 6150.7-2008
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| GB/T 6150.7-1985 | English | 199 |
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Methods for chemical analysis of tungsten concentrates--The atomic absorption spectrophotometric method for the determination of calcium content
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GB/T 6150.7-1985
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Basic data | Standard ID | GB/T 6150.7-2008 (GB/T6150.7-2008) | | Description (Translated English) | Methods for chemical analysis of tungsten concentrates -- Determination of tantalum content and niobium content -- Inductively coupled plasma emission spectrometry and spectrophotometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H63 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 9,972 | | Date of Issue | 2008-06-17 | | Date of Implementation | 2008-12-01 | | Older Standard (superseded by this standard) | GB/T 6150.9-1985 | | Regulation (derived from) | National Standard Approved Release Bulletin No. 10, 2008 (No. 123) | | Issuing agency(ies)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 amount of tungsten concentrate in tantalum, Determination of niobium content. This method is suitable for the amount of tungsten concentrate in tantalum, determination of niobium content. Measuring range: tantalum pentoxide content 0. 020% to 1. 00%, niobium pentoxide content 0. 020% to 1. 00%. | GB/T 6150.7-2008: Methods for chemical analysis of tungsten concentrates -- Determination of tantalum content and niobium content -- Inductively coupled plasma emission spectrometry and spectrophotometry
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Methods for chemical analysis of tungsten concentrates. Determination of tantalum content and niobium content. Inductively coupled plasma emission spectrometry and spectrophotometry
ICS 77.120.99
H63
National Standards of People's Republic of China
Replacing GB/T 6150.9-1985
Methods for chemical analysis of tungsten concentrates
Determination of the amount of tantalum-niobium
Plasma emission spectroscopy and spectrophotometry
Posted 2008-06-17
2008-12-01 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 7 GB/T 6150's.
This Part replaces GB/T 6150.9-1985 "Methods for chemical analysis of tungsten concentrates chlorosulphophenol S photometric method for determination of niobium content butyl Rodin
Determination of tantalum content "Ming B extraction.
Section compared with the GB/T 6150.9-1985 The main changes are as follows.
--- Increased plasma emission spectrometry;
--- Increasing the repeatability limit terms.
Tantalum pentoxide mass fraction in the range of 0.020% ~ 0.25%, niobium pentoxide mass fraction in the range of 0.020% to 0.50%
Inner circle, arbitration recommended method.
This part is proposed by the China Nonferrous Metals Industry Association.
The non-ferrous metal part by the National Standardization Technical Committee.
This section is Ganzhou Nonferrous Metallurgy Research Institute, China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting.
Method 1 of this section by the Beijing Nonferrous Metal Research Institute, Ganzhou Nonferrous Metallurgy Research Institute drafted.
Method 2 of this section by the Beijing Nonferrous Metal Research Institute, Ganzhou Nonferrous Metallurgy Research Institute drafted.
The main drafters of this Part 1. Tong Jian, Yan Guang Gui, Liu Hong, Li Ying.
The main drafters of this section Method 2. Tong Ling, Lee Man Chi, Mushu Jun, Yu Xinmin.
This part of the standard replaces the previous editions are.
--- GB/T 6150.9-1985.
Methods for chemical analysis of tungsten concentrates
Determination of the amount of tantalum-niobium
Plasma emission spectroscopy and spectrophotometry
1 plasma emission spectrometry
1 Scope
This method specifies the amount of tantalum, niobium determination of the amount of tungsten concentrate.
This method is applicable to the determination of the amount of tungsten concentrates tantalum, niobium content. Measurement range. tantalum oxide mass fraction of 0.020% to 1.00%, five
Niobium pentoxide mass fraction of 0.020% to 1.00%.
2 Method summary
Sample with nitric acid, hydrofluoric acid dissolved, the solution by ICP spectrometer to eliminate interference on the determination of tungsten matrix matching method.
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 nitrate (ρ1.42g/mL), pure class distinctions.
3.2 hydrofluoric acid (ρ1.14g/mL), pure class distinctions.
3.3 metatungstate (AMT) .( AMT) ≥99.99%.
3.4 tantalum standard stock solution. Weigh 0.1000g pure tantalum [(Ta) ≥99.9%], placed in 100mL teflon beaker, add
5mL nitric acid (3.1), 5mL of hydrofluoric acid (3.2), cover sheet pan, over low heat until completely dissolved tantalum, removed, cooled to room temperature, transferred to
100mL plastic volumetric flask, dilute with water to volume, and mix. Store in plastic bottle. This solution 1mL containing 1.0mg tantalum.
3.5 niobium standard stock solution. Weigh 0.1000g pure niobium [(Nb) ≥99.9%], placed in 100mL teflon beaker, add
5mL nitric acid (3.1), 5mL of hydrofluoric acid (3.2), cover sheet pan, over low heat until completely dissolved niobium, removed, cooled to room temperature, transferred to
100mL plastic volumetric flask, dilute with water to volume, and mix. Store in plastic bottle. This solution 1mL containing 1.0mg niobium.
3.6 tantalum and niobium mixed standard solution A. Pipette 10.00mL tantalum standard stock solution (3.4), 10.00mL niobium standard stock solution (3.5),
In 100mL plastic flask supplemented with 5mL of hydrofluoric acid (3.2) diluted with water to volume, and mix. Store in plastic bottle. This solution
1mL each containing 100μg and 100μg of tantalum and niobium.
3.7 tantalum and niobium mixed standard solution B. Pipette 10.00mL tantalum and niobium mixed standard solution A (3.6), in 100mL plastic flask, supplemented
5mL of hydrofluoric acid (3.2), diluted with water to volume, and mix. Store in plastic bottle. This solution 1mL containing 10μg respectively, and tantalum
10μg niobium.
4 Instrument
Inductively coupled plasma spectrometer, hydrofluoric acid resistant sample introduction system.
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.
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