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GB/T 31231-2014: Determination of zinc and lead isotopic ratios in aqueous solution -- Multiple-collectors inductively coupled plasma mass spectrometry
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 31231-2014 | English | 209 |
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Determination of zinc and lead isotopic ratios in aqueous solution -- Multiple-collectors inductively coupled plasma mass spectrometry
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GB/T 31231-2014
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Basic data | Standard ID | GB/T 31231-2014 (GB/T31231-2014) | | Description (Translated English) | Determination of zinc and lead isotopic ratios in aqueous solution -- Multiple-collectors inductively coupled plasma mass spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N04 | | Classification of International Standard | 71.040 | | Word Count Estimation | 9,936 | | Date of Issue | 9/30/2014 | | Date of Implementation | 4/15/2015 | | Quoted Standard | GB/T 6379.1; GB/T 6379.2 | | Regulation (derived from) | People's Republic of China Announcement of Newly Approved National Standards 2014 No. 22 | | 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 multi-collector inductively coupled plasma mass spectrometry zinc in water, lead isotope abundance ratio method were measured. This Standard is applicable to chemical purification after converted to an aqueous solution of zinc nitr | GB/T 31231-2014: Determination of zinc and lead isotopic ratios in aqueous solution -- Multiple-collectors inductively coupled plasma mass spectrometry
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Determination of zinc and lead isotopic ratios in aqueous solution. Multiple-collectors inductively coupled plasma mass spectrometry
ICS 71.040
N04
National Standards of People's Republic of China
Determination of zinc in water, lead isotope abundance ratio of
Multiple Collector Inductively Coupled Plasma Mass Spectrometry
Issued on. 2014-09-30
2015-04-15 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard was proposed by the Ministry of Science and Technology of the People's Republic of China.
This standard by National Instrument Analysis and Testing Standardization Technical Committee (SAC/TC481) centralized.
This standard was drafted. China Institute of Metrology, China Institute of Atomic Energy, Institute of Geology and Geophysics Research
The Earth Institute of Environmental Sciences, Chinese Academy of Geological Sciences Institute of Mineral Resources.
The main drafters of this standard. Zhou Tao, Li Hongmei, he served with Cheung, Tang Yichuan, Li Li-Li, Xie Liewen, Hemao Yong, Hou Jun, Dai Xinhua, Lu Hai,
Wang Jun.
Determination of zinc in water, lead isotope abundance ratio of
Multiple Collector Inductively Coupled Plasma Mass Spectrometry
1 Scope
This standard specifies the multi-collector inductively coupled plasma mass spectrometry zinc in water, lead isotope abundance ratio method were measured.
This standard applies to chemical purification after converted to nitric acid aqueous solution of zinc, determination of lead isotope natural abundance samples, sample testing
Zinc content in the range 5ng/g ~ 3000ng/g, the lead content 0.5ng/g ~ 500ng/g.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 6379.1 measurement methods and results of Accuracy (trueness and precision) - Part 1. General principles and definitions
GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard measurement method to repeat
Of the basic methods of reproduction
Determination of zinc in water 3 isotope abundance ratio
3.1 Summary of Method
Multi-collector inductively coupled plasma mass spectrometer, an aqueous solution injection, the sample after the plasma ionization, separated by a magnetic field, while
Determination 64Zn, 66Zn, 67Zn, 68Zn, 70Zn five isotopes of zinc ion intensity, calculated isotopic abundance ratio, the instrument is made of zinc
Isotope abundance ratio calibration reference material, a sample of zinc isotope abundance ratio for precision measurement.
3.2 Reagents and materials
3.2.1 Water. resistivity of not less than the high water 18.2MΩ · cm.
3.2.2 nitric acid (HNO3). excellent pure nitric acid nitric acid by the second after purified by distillation.
3.2.3 zinc isotopic abundance than standard materials. isotope ratio should be selected and isotopic abundance ratio as close to the standard
substance.
3.2.4 aqueous nitric acid. nitric acid with 2mL measuring cylinder, was transferred to a plastic bottle containing 98mL of water, mixing, formulation of 2% nitric acid
Aqueous solution.
3.2.5 Standard solution. using a micro pipette sampler zinc isotopic abundance than the standard substance solution into a graduated test tube, add 2% water nitrate
The solution was diluted, mixed to prepare a zinc isotope abundance ratio of the standard solution, the process should be avoided isotope contamination, the concentration of the standard solution should be
Consistent with the concentration of the sample solution.
3.3 Instrument
3.3.1 Multiple Collector Inductively Coupled Plasma Mass Spectrometer
Magnetic mass, abundance sensitivity of not more than 5 × 10-6 (mass 237,1μg/L uranium solution) with 5 or more Faraday
Cup receiver.
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