SN/T 4677-2016 English PDF

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SN/T 4677-2016: Determination of azodicarbonamide in foods for export - HPLC method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4677-2016	139	Add to Cart	3 days	Determination of azodicarbonamide in foods for export - HPLC method	Valid

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Basic data

Standard ID: SN/T 4677-2016 (SN/T4677-2016)
Description (Translated English): Determination of azodicarbonamide in foods for export - HPLC method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Word Count Estimation: 6,625
Date of Issue: 2016-12-12
Date of Implementation: 2017-07-01
Regulation (derived from): State-Quality-Inspection-Accredidation (2016) No.590
Issuing agency(ies): General Administration of Customs

SN/T 4677-2016: Determination of azodicarbonamide in foods for export - HPLC 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 azodicarbonamide in foods for export-HPLC method People's Republic of China Exit Inspection and Quarantine standards Determination of azodicarbonamide in food for export High performance liquid chromatography 2016-12-12 released 2017-07-01 implementation People's Republic of China General Administration of Quality Supervision, Inspection and Quarantine released Exit Inspection and Quarantine of People's Republic of China Industry Standard Determination of azodicarbonamide in food for export High performance liquid chromatography China Standard Press First edition of November.2017

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 Committee. This standard was drafted by the Chongqing Entry-Exit Inspection and Quarantine of People's Republic of China, and China Institute of Inspection and Quarantine. The main drafters of this standard. Wang Jun Su, Peng Tao, Liu Nian Yuan, Guan Tianheng, Wang Guomin, Tang Bobin, Zheng Xiaoling. Determination of azodicarbonamide in food for export High performance liquid chromatography

1 Scope

This standard specifies the export of flour azodicarbonamide HPLC assay. This standard applies to the determination of azodicarbonamide in flour.

2 Normative references

The following documents for the application of this document is essential. 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 method summary

Samples were extracted by acetone, degreased, high performance liquid chromatography - diode array detector detection, matrix matching standard working curve external standard Legal quantity.

4 reagent material

Unless otherwise specified, the reagents used are of analytical grade, water GB/T 6682 provisions of a water. 4.1 acetone. Chromatography pure. 4.2 n-hexane. Chromatographic purity. 4.3 Phosphate. 4.4 dipotassium hydrogen phosphate. 4.5 0.02% dipotassium hydrogen phosphate solution accurately weighed 0.2g dipotassium hydrogen phosphate, dissolved in water and dilute to 1L, with phosphoric acid (4.3) to adjust the pH To 2.4. 4.6 0.5% dipotassium hydrogen phosphate solution Accurately weigh 0.5g dipotassium hydrogen phosphate, add water and dilute to 100mL. 4.7 azodicarbonamide standard material. CAS No. 123-77-3, molecular formula C2H4N4O2, relative molecular mass of 116.1. 4.8 Azodicarbonamide standard stock solution Accurately weigh the appropriate azodicarbonamide standard substance and dissolve it in warm water (60 ℃ ~ 70 ℃) Diluted to a concentration of 100mg/L standard stock solution. 4.9 azodicarbonamide standard working solution, diluted with water as required to the appropriate concentration of the standard working solution. 4.10 Microporous membrane, 0.45 μm, aqueous phase.

5 instruments and equipment

5.1 high performance liquid chromatography with diode array detector. 5.2 electronic balance. Sense of 0.0001g and 0.01g. 5.3 Centrifuge speed of not less than 7500r/min. ......

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