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SN/T 2938-2011: Determination of chemical composition in refining aluminum foil. Determination of lead, cadmium, arsenic. Inductively coupled plasma atomic emission spectrometric method
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SN/T 2938-2011	English	209	Add to Cart	3 days [Need to translate]	Determination of chemical composition in refining aluminum foil. Determination of lead, cadmium, arsenic. Inductively coupled plasma atomic emission spectrometric method

SN/T 2938-2011: Determination of chemical composition in refining aluminum foil. Determination of lead, cadmium, arsenic. Inductively coupled plasma atomic emission spectrometric method

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Determination of chemical composition in refining aluminum foil.Determination of lead, cadmium, arsenic.Inductively coupled plasma atomic emission spectrometric method People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of the chemical composition of refined aluminum foil Inductively coupled plasma atomic emission spectrometry Determination of lead, cadmium, arsenic Determinationoflead, cadmium, arsenic-Inductivelycoupled Issued on. 2011-05-31 2011-12-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. Tianjin People's Republic of China Exit Inspection and Quarantine. The main drafters of this standard. Yaozhuan Gang, Yang Lifei, Li Yi, Su Mingyue, Wang Haoyun, Wang, Wangzhen Kun, Li Anmin. This standard is the first release of the entry-exit inspection and quarantine industry standards. Determination of the chemical composition of refined aluminum foil Inductively coupled plasma atomic emission spectrometry Determination of lead, cadmium, arsenic

1 Scope

This standard specifies the method of inductively coupled plasma atomic Determination of lead, cadmium, arsenic in refining aluminum foil emission spectrometry. This standard applies to the determination of refined aluminum foil of lead, cadmium, arsenic content, the measurement range shown in Table 1. Table 1 Determination of elements content range unit.% (mass fraction) Element measurement range Pb 0.003 ~ 0.04 Cd 0.001 ~ 0.04 As 0.003 ~ 0.04

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) apply to this section. GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard measurement repeatability And basic methods of reproduction Laboratory use specifications and test methods GB/T 6682 Analysis

3 Method summary

Sample with an appropriate acid dissolved in plasma spectrometer at a wavelength corresponding to the elements, measured light intensity curve is determined from the working solution Content of lead, cadmium and arsenic solution.

4 Reagents

Unless otherwise stated, the use of uniform analytical reagents, water as a secondary water GB/T 6682 regulations. 4.1 aluminum (≥99.99%, lead, cadmium, arsenic). 4.2 potassium iodide. 4.3 nitric acid (ρ = 1.42g/mL). 4.4 hydrochloric acid (ρ = 1.19g/mL). 4.5 Hydrofluoric acid (ρ = 1.14g/mL). 4.6 sulfate (ρ = 1.84g/mL). 4.7 CTC. ...