SN/T 4893-2017 English PDF

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SN/T 4893-2017: Determination of lead, cadmium, arsenic, mercury in animals for import and export. ICP-MS method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4893-2017	149	Add to Cart	2 days	Determination of lead, cadmium, arsenic, mercury in animals for import and export. ICP-MS method	Valid

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Basic data

Standard ID: SN/T 4893-2017 (SN/T4893-2017)
Description (Translated English): Determination of lead, cadmium, arsenic, mercury in animals for import and export. ICP-MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X22
Word Count Estimation: 5,519
Date of Issue: 2017-08-29
Date of Implementation: 2018-04-01
Regulation (derived from): State-Quality-Inspection-Accreditation (2017) 384
Issuing agency(ies): General Administration of Customs

SN/T 4893-2017: Determination of lead, cadmium, arsenic, mercury in animals for import and export. ICP-MS method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Determination of lead, cadmium, arsenic and mercury in edible animals by import and export. Inductively coupled plasma mass spectrometry (ICP-MS)) People's Republic of China entry and exit inspection and quarantine industry standards Determination of lead, cadmium, arsenic and mercury in food animals for import and export Inductively coupled plasma mass spectrometry (ICP-MS) Published on.2017-08-29 2018-04-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Shandong Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Wang Yuting, Zhang Shuai, Li Zongxi, Fu Yuqiang, Liang Chengzhu. Determination of lead, cadmium, arsenic and mercury in food animals for import and export Inductively coupled plasma mass spectrometry (ICP-MS)

1 Scope

This standard specifies the method for determination of lead, cadmium, arsenic and mercury in the blood of imported and exported livestock and poultry---inductively coupled plasma mass spectrometry (below Referred to as ICP-MS). This standard applies to the detection of lead, cadmium, arsenic and mercury in the blood of imported and exported livestock and poultry.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 6682 Analytical laboratory water specifications and test methods

3 Principle

After the sample was treated with nitric acid, the digestion solution was measured by an inductively coupled plasma mass spectrometer. According to the quality of each element and the corresponding internal standard element The charge ratio is separated. For a certain mass-to-charge ratio, the signal intensity of the mass spectrum is proportional to the number of particles entering the mass spectrometer, that is, the element in the sample is concentrated. The degree is proportional to the intensity of the mass spectral signal. The elements in the sample solution were quantitatively analyzed by measuring the signal intensity of the mass spectrum.

4 reagents and materials

Unless otherwise stated, the reagents used in this method are of excellent grade and the water is the first grade water specified in GB/T 6682. 4.1 Nitric acid. 4.2 Nitric acid solution (1 99). Take 10 mL of nitric acid (4.1) and slowly add to 990 mL of water. 4.3 Tuning solution. 10 ng/mL Li, Y, Ce, Tl, Co. 4.4 Internal standard solution. 10mg/L aqueous solution containing Ge, In, Bi. 4.5 Lead, cadmium, arsenic element mixed standard stock solution. 10.0mg/L. 4.6 Mercury standard stock solution. 1000mg/L. 4.7 Lead, cadmium and arsenic mixed standard working solution. draw appropriate amount of standard stock solution (4.5), and dilute with nitric acid solution (4.2) Into the mixed standard solution series, the mass concentration of each element can be found in Table A.1 in Appendix A, or according to the elemental mass concentration in the sample solution. Adjust the mass concentration range of each element of the standard series. 4.8 Mercury standard working solution. draw a suitable amount of mercury standard stock solution (4.6), and dilute it with nitric acid solution (4.2) to form a mercury standard solution system. Column, mercury element mass concentration see Table A.1, prepared at the time of use. 4.9 Internal standard working fluid. 1.0mg/L. Pipette the internal standard solution (4.4) 10.0 mL into a 100 mL volumetric flask and dilute to volume with a nitric acid solution (4.2). 4.10 Triton X-100 solution, 0.1% (volume fraction). 4.11 Liquid argon or high purity argon (purity ≥ 99.99%).

5 instruments and equipment

5.1 Inductively coupled plasma mass spectrometer. ......

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