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YS/T 555.9-2009: Methods for chemical analysis of molybdenum concentrate. Determination of potassium and sodium content. Flame atomic absorption spectrometry
Status: Valid YS/T 555.9: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 555.9-2009 | English | 169 |
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Methods for chemical analysis of molybdenum concentrate. Determination of potassium and sodium content. Flame atomic absorption spectrometry
| Valid |
YS/T 555.9-2009
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| YS/T 555.9-2006 | English | 199 |
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Molybdenum concentrates. Determination of bismuth content
| Obsolete |
YS/T 555.9-2006
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PDF similar to YS/T 555.9-2009
Basic data | Standard ID | YS/T 555.9-2009 (YS/T555.9-2009) | | Description (Translated English) | Methods for chemical analysis of molybdenum concentrate. Determination of potassium and sodium content. Flame atomic absorption spectrometry | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H14;D43 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,673 | | Date of Issue | 2009-12-04 | | Date of Implementation | 2010-06-01 | | Older Standard (superseded by this standard) | YS/T 555.10-2006 | | Regulation (derived from) | MIIT [2009] No. 66 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the molybdenum content of potassium and sodium content determination. This standard applies to molybdenum potassium and sodium content. Measuring range: 0. 01% to 2. 00%. | YS/T 555.9-2009: Methods for chemical analysis of molybdenum concentrate. Determination of potassium and sodium content. Flame atomic absorption spectrometry
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Methods for chemical analysis of molybdenum concentrate.Determination of potassium and sodium content.Flame atomic absorption spectrometry
ICS 77.120.99
H14
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS/T 555.10-2006
Methods for chemical analysis of molybdenum concentrate
Determination of the amount of potassium and sodium content
Flame Atomic Absorption Spectrometry
Posted 2009-12-04
2010-06-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 555 "Methods for chemical analysis of molybdenum concentrate" includes 11 parts.
YS/T 555.1 Methods for chemical analysis of molybdenum concentrate molybdenum content of lead molybdate assay gravimetric method
YS/T 555.2 Methods for chemical analysis of molybdenum concentrate - Determination of silicon dioxide content and weight of molybdenum blue spectrophotometric method
YS/T 555.3 Methods for chemical analysis of molybdenum concentrate arsenic content - Atomic Fluorescence Spectrometry and DDTC-Ag spectrophotometry
YS/T 555.4 Methods for chemical analysis of molybdenum concentrate tin content - Atomic Fluorescence Spectrometry
YS/T 555.5 Methods for chemical analysis of molybdenum concentrate phosphorus content of molybdenum blue spectrophotometric determination of phosphorus
YS/T 555.6 Methods for chemical analysis of molybdenum concentrate copper, lead, bismuth, zinc content - Flame Atomic Absorption Spectrometry
YS/T 555.7 Methods for chemical analysis of molybdenum concentrate calcium oxide content by flame atomic absorption spectrometry
YS/T 555.8 Methods for chemical analysis of molybdenum concentrate - Determination of tungsten content - Thiocyanate spectrophotometric method
YS/T 555.9 Methods for chemical analysis of molybdenum concentrate the amount of potassium and sodium contents - Flame Atomic Absorption Spectrometry
YS/T 555.10 Methods for chemical analysis of molybdenum concentrate rhenium contents - Thiocyanate spectrophotometric
Determination of YS/T 555.11 Methods for chemical analysis of molybdenum concentrate oil and moisture content of the total weight of the law
Part is divided into 9 parts.
The partial replacement of YS/T 555.10-2006 "concentrates - Methods of determination of potassium and sodium content" (formerly GB/T 15079.10-
1994).
This portion of YS/T 555.10-2006 compared to the main changes are as follows.
--- Increasing the molybdenum substrate method to eliminate interference;
--- Increasing the precision of the terms;
--- Text format has been modified, supplemented with quality assurance and control provisions.
The non-ferrous metal part by the National Standardization Technical Committee and centralized.
This section is responsible for drafting unit. Jinduicheng Molybdenum Group Co., Ltd., China Nonferrous Metals Industry Institute of Standards and Metrology and Quality.
Participated in the drafting of this section. JCC (Dexing) New Mining Technology Development Co., Ltd., Luoyang Luanchuan Molybdenum Group Co. Shares
the company.
The main drafters of this section. Guang Ji, Lu Qingxiang, Wang Zhongqi, Souchon, Zhangjiang Feng, Yu Huanrong.
This part certifier. Bin strong beam, Li Hongjun, Tian Yonghong.
This part of the standard replaces the previous editions are.
--- GB/T 15079.10-1994;
--- YS/T 555.10-2006.
Methods for chemical analysis of molybdenum concentrate
Determination of the amount of potassium and sodium content
Flame Atomic Absorption Spectrometry
1 Scope
This section provides the determination of molybdenum concentrate in the amount of potassium and sodium content.
This section applies to the determination of molybdenum concentrate in the amount of potassium and sodium content. Measuring range. 0.01% to 2.00%.
2 Method summary
Samples with nitric acid, hydrofluoric acid decomposition in dilute nitric acid medium, cesium chloride as deionization agent for potassium atomic absorption spectrometer wavelength
766.5nm, 589.0nm sodium at the air - acetylene flame measured absorbance.
3 Reagents
Unless otherwise indicated in the analysis using only recognized as analytical reagents and secondary deionized water.
3.1 nitrate (ρ1.42g/mL), pure class distinctions.
3.2 Hydrofluoric acid (ρ1.15g/mL).
3.3 cesium chloride solution (10g/L). Weigh 1g of cesium chloride (spectroscopically pure), placed in 100mL beaker, it adds appropriate amount of water to dissolve completely shift
Into 100mL volumetric flask, dilute with water to volume, and mix. Store in plastic bottle.
3.4 molybdenum substrate solution (5mg/mL). Weigh 1.000g ammonium molybdate (high-purity reagents, potassium and sodium content is minimal), dissolved in water and transferred to
100mL volumetric flask, dilute with water to volume, and mix. Store in plastic bottle.
3.5 Potassium standard stock solution. Weigh 0.0953g pre-ignition 1h and cooled to room temperature in a dryer at 550 ℃ potassium chloride (Spectra
Pure), placed in 200mL beaker, add appropriate amount of water to dissolve it completely and transferred to 500mL volumetric flask, dilute with water to volume, and mix.
Store in plastic bottle. This solution 1mL containing 100μg potassium.
3.6 Potassium standard solution. Pipette 10.00mL potassium standard stock solution (3.5), placed in 100mL volumetric flask, dilute to the mark, mix
uniform. Store in plastic bottle. This solution 1mL containing 10μg potassium.
3.7 Sodium standard stock solution. Weigh 0.1271g, pre-burning 1h and cooled to room temperature in a dryer at 550 ℃ sodium chloride (light
Pure spectrum), placed in 200mL beaker, it adds appropriate amount of water to dissolve it completely and transferred to 500mL volumetric flask, dilute to the mark with water, mix
uniform. Store in plastic bottle. This solution 1mL containing 100μg sodium.
3.8 Sodium standard solution. Pipette 10.00mL sodium standard stock solution (3.7), placed in 100mL volumetric flask, dilute to the mark with water, mix
uniform. Store in plastic bottle. This solution 1mL containing 10μg sodium.
4 Instrument
Atomic absorption spectrometer, with potassium, sodium hollow cathode lamp.
Under optimum working conditions for those who can reach the following indicators can be used.
--- Precision minimum requirements. measuring the absorbance of the highest standard solution 10 times the standard deviation should not exceed the average absorbance
1.5%. Lowest measured standard solution (not a "zero" standard solution) absorbance of 10 times, and the standard deviation is not more than the highest standard solution
0.5% average absorbance.
--- Characteristic concentration. In line with the determination of the solution matrix solution, characteristic concentration of potassium and sodium should not exceed 0.01μg/mL.
--- Linear calibration curve. The curve is divided into five sections according to concentration, absorbance difference between the absorbance difference between the highest and the lowest segment segment
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