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GB/T 16484.11-2009: Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 11: Determination of lead oxide content -- Flame atomic absorption spectrometry
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 16484.11-2009 | English | 169 |
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Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 11: Determination of lead oxide content -- Flame atomic absorption spectrometry
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GB/T 16484.11-2009
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| GB/T 16484.11-1996 | English | 239 |
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Methods for chemical analysis of rare earth chloride and carbonate--Determination of lead oxide content
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GB/T 16484.11-1996
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Basic data | Standard ID | GB/T 16484.11-2009 (GB/T16484.11-2009) | | Description (Translated English) | Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 11: Determination of lead oxide content -- Flame atomic absorption spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H14 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 7,763 | | Date of Issue | 2009-09-04 | | Date of Implementation | 2010-05-01 | | Older Standard (superseded by this standard) | GB/T 16484.11-1996 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.12 (Total No.152) | | Issuing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 rare earth chloride, determination of the light rare earth carbonate, lead oxide content. This section applies to rare earth chloride, determination of the light rare earth carbonate, lead oxide content. Measurement range is divided into 0. 0050% to 0. 020 %. | GB/T 16484.11-2009: Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 11: Determination of lead oxide content -- Flame atomic absorption spectrometry
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Chemical analysis methods of rare earth chloride and light rare earth carbonate Part 11. Determination of lead oxide content Flame atomic absorption spectrometry.
ICS 77.120.99
H14
National Standards of People's Republic of China
Replacing GB/T 16484.11-1996
Earth chloride and light rare earth carbonate chemical analysis methods
Part 11. Determination of the amount of lead oxide
Flame Atomic Absorption Spectrometry
Posted 2009-10-30 2010-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 16484-2009 "rare earth chloride and light rare earth carbonate chemical analysis method" is divided into 22 parts.
--- Part 1. Determination of cerium oxide content of ammonium ferrous sulfate titration;
--- Part 2. europium oxide content - Inductively Coupled Plasma Mass Spectrometry;
--- Part 3. 15 with a rare earth element oxide component measured by inductively coupled plasma atomic emission spectrometry;
--- Part 4. Determination of thorium oxide content arsenazo Ⅲ spectrophotometry;
--- Part 5. Determination of barium oxide by inductively coupled plasma atomic emission spectrometry;
--- Part 6. Determination of calcium oxide content by flame atomic absorption spectrometry;
--- Part 7. Determination of magnesium oxide content - Flame atomic absorption spectrometry;
--- Part 8. Determination of the amount of sodium oxide flame atomic absorption spectrometry;
--- Part 9. Determination of the amount of nickel oxide by flame atomic absorption spectrometry;
--- Part 10. Determination of manganese oxide content by flame atomic absorption spectrometry;
--- Part 11. Determination of lead oxide content by flame atomic absorption spectrometry;
--- Part 12. Determination of the amount of sulfate;
--- Part 13. Determination of the amount of ammonium chloride distillation - titration;
--- Part 14. Determination of the amount of phosphate phosphorus antimony molybdenum blue spectrophotometric method;
--- Part 15. light rare earth carbonate - Determination of the amount of chlorine in the silver nitrate turbidimetry;
--- Part 16. rare earth chloride in an amount of water insolubles - Gravimetric method;
--- Part 17. Determination of moisture content in rare earth carbonate;
--- Part 18. Determination of light rare earth carbonate in the weight loss on ignition method;
--- Part 20. nickel oxide, manganese oxide, lead oxide, aluminum oxide, zinc oxide, thorium oxide content - Inductively coupled plasma mass
Spectroscopy;
--- Part 21. Determination of iron oxide content of 1,10 phenanthroline spectrophotometry;
--- Part 22. Determination of the amount of zinc oxide flame atomic absorption spectrometry;
--- Part 23. Determination of carbonic acid insoluble light amount of rare earth gravimetric method.
This section GB/T Part of 1,116,484.
This Part replaces GB/T 16484.11-1996 "rare earth chloride, rare earth carbonate chemical analysis by Atomic Absorption Spectrometry
The amount of lead. "
This standard compared with GB/T 16484.11-1996, have the following main changes.
--- Measured by the scope of 0.0015% to 0.010 percent to 0.0050% to 0.020%;
--- Joints canceled quartz tube burner apparatus, ordinary burner;
--- Increasing the precision of the terms;
--- Increased quality assurance and control provisions;
--- Delete the original standard annotated;
--- Standard text made editorial changes.
This part of the National Standardization Technical Committee rare and centralized.
This section is responsible for drafting unit. Beijing Nonferrous Metal Research Institute, China Nonferrous Metals Industry Institute of Standards and Metrology and Quality.
This section was drafted by the Beijing Nonferrous Metal Research Institute.
Participated in the drafting of this section. Rare-Earth Hi-Tech Company, Jiangyin Jiahua Advanced Material Resources Co., Ltd.
The main drafters of this section. Liu Ying.
The drafters of some of the participants. Bao Yongping, Ren Xiaoguang, Zheng Kun, Xie Jianwei, Zhao Ping red, Hefeng Juan.
This part of the alternative criteria previously issued as follows.
--- GB/T 16484.11-1996.
Earth chloride and light rare earth carbonate chemical analysis methods
Part 11. Determination of the amount of lead oxide
Flame Atomic Absorption Spectrometry
1 Scope
GB/T 16484 provisions of this part of the determination of rare earth chloride, carbonate, light rare earth oxide of lead content.
This section applies to earth chloride and light rare earth carbonate was measured in lead oxide content. Measurement range. 0.0050% to 0.020%.
2 principle of the method
The sample was dissolved by nitric acid in the air - acetylene flame, using high-performance hollow cathode lamp, atomic absorption spectrometer, wavelength 217.0nm
Department deducting matrix background absorbance measurement lead with deuterium lamp.
3 Reagents and materials
3.1 Hydrogen peroxide (30%).
3.2 nitric acid (1 + 1).
3.3 lead standard stock solution. Weigh 0.5000g metallic lead [w1 (Pb) > 99.99%], placed in 200mL beaker, add 20mL of nitric acid
(3.2), was slowly heated up to complete dissolution, boiled for several minutes in order to get rid of nitrogen oxides. Cooling to room temperature, transferred to 500mL volumetric flask
Dilute with water to volume, and mix. 1mL solution containing 1mg lead.
3.4 Lead standard solution. Pipette 10.00mL lead standard stock solution (3.3), in 200mL flask, add 20mL of nitric acid (3.2), with
Dilute with water to volume, and mix. This solution 1mL containing 50μg lead.
4 Instrument
Atomic absorption spectrometer, with a lead hollow cathode lamp.
Under optimum conditions the instrument, those who can reach the following indicators can be used.
--- Characteristic concentration. in the measurement sample solution matrix consistent solution, characterized in lead concentration of not more than 0.0095μg/mL.
--- Precision. measuring the absorbance of the standard solution 10 times the highest concentration, the absorbance of the standard deviation does not exceed an average of 1.0%; most
Low concentrations of the standard solution (not a zero standard solution) absorbance measured 10 times, and the standard deviation should not exceed the maximum average absorption solution
0.5% luminosity.
--- 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 of not less than 0.7.
5 Sample
5.1 Preparation of rare earth chloride sample. A sample was crushed, quickly placed in a weighing bottle immediately weighed.
5.2 Preparation of light rare earth carbonate sample. weigh the sample immediately after the opening.
Step 6 Analysis
6.1 Sample
Table 1 sample was weighed, accurate to 0.0001g.
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