SN/T 2211-2016 English PDF

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SN/T 2211-2016: Determination of lead and cadmium in royal jelly for export
Status: Valid

SN/T 2211: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2211-2016	259	Add to Cart	3 days	Determination of lead and cadmium in royal jelly for export	Valid
SN/T 2211-2008	319	Add to Cart	3 days	Determination of lead, cadmium in royal jelly. Graphite furnace atomic absorption spectrometry method	Obsolete

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Basic data

Standard ID: SN/T 2211-2016 (SN/T2211-2016)
Description (Translated English): Determination of lead and cadmium in royal jelly for export
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 11,184
Date of Issue: 2016-06-28
Date of Implementation: 2017-02-01
Older Standard (superseded by this standard): SN/T 2211-2008
Regulation (derived from): State-Quality-Inspection-Accredidation [2016] No.318
Issuing agency(ies): General Administration of Customs

SN/T 2211-2008: Determination of lead, cadmium in royal jelly. Graphite furnace atomic absorption spectrometry 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 in royal jelly.Graphite furnace atomic absorption spectrometry method Exit inspection and quarantine industry standard book People's Republic of China Royal jelly Determination of Lead and Cadmium Graphite Furnace Atomic Absorption Spectrometry Posted 2008-11-18 2009-06-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

The Standard Appendix A and Appendix B are informative. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Zhejiang Exit Inspection and Quarantine. The main drafters of this standard. Andrew Chen, Xie, Zhang Wei, Yu Jun, Chen Xiaomei. This standard is the first release of the entry-exit inspection and quarantine industry standards. Royal jelly Determination of Lead and Cadmium Graphite Furnace Atomic Absorption Spectrometry

1 Scope

This standard specifies the royal jelly lead and cadmium by graphite furnace atomic absorption spectrometry. This standard applies to the determination of royal jelly lead, cadmium content.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. Preparation of GB/T 601 chemical reagent titration solution GB/T 6682 analytical laboratory use specifications and test methods

3 Method summary

Dry samples were digested by microwave digestion and dilution or volume for graphite furnace atomic absorption spectrometry determination.

4 Reagents

Unless otherwise stated, the use of superior grade pure reagents in the analysis, test water line with GB/T 6682 stipulated two water. 4.1 nitrate. 4.2 Hydrogen peroxide. AR. 4.3 ammonium dihydrogen phosphate. AR. 4.4 nitric acid (1 + 1, volume ratio). Take 50mL of nitric acid (4.1) was diluted with water to 100mL. 4.5 nitric acid solution (99 + 1, volume ratio). Take 1mL of nitric acid (4.1) was diluted with water to 100mL. 4.6 ammonium dihydrogen phosphate solution (20g/L). Weigh 2.0g of ammonium dihydrogen phosphate was dissolved in water and diluted to 100mL. 4.7 lead standard stock solution 1000mg/L. according to GB/T 601 standard preparation, purchase or certified reference materials. 4.8 cadmium standard stock solution 1000mg/L. according to GB/T 601 standard preparation, purchase or certified reference materials. 4.9 lead standard working solution (50μg/L). serial dilution of lead standard solution (4.7) with a nitric acid solution (4.4), and ultimately lead 50μg/L, with When existing service. 4.10 Cd standard working solution (10μg/L). serial dilution of cadmium standard stock solution (4.8) with a nitric acid solution (4.4) final cadmium 10.0μg/L, The time is now equipped with. 5. Apparatus 5.1 Atomic absorption spectrophotometer. Configure graphite furnace and lead, cadmium hollow cathode lamp. 5.2 Analysis of balance. a sense of the amount of 0.001g. 5.3 microwave digestion device. 5.4 muffle furnace. 5.5 may regulator furnace. ......

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