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SN/T 3148-2012 PDF English

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SN/T 3148-2012: Determination of benzoyl peroxide in food for export. HPLC
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SN/T 3148-2012English579 Add to Cart 4 days [Need to translate] Determination of benzoyl peroxide in food for export. HPLC

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Basic data

Standard ID SN/T 3148-2012 (SN/T3148-2012)
Description (Translated English) Determination of benzoyl peroxide in food for export. HPLC
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard X04
Classification of International Standard 67.050
Word Count Estimation 22,272
Regulation (derived from) National Quality Inspection (2012) 237;
Issuing agency(ies) General Administration of Customs
Summary This standard specifies the benzoyl peroxide in food formaldehyde content detection by HPLC method. This standard applies to wheat flour, rice flour and potato starch and other foods of benzoic acid overload detection.

SN/T 3148-2012: Determination of benzoyl peroxide in food for export. HPLC


---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 benzoyl peroxide in food for export.HPLC People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of benzoyl peroxide in food for export Content High Performance Liquid Chromatography HPLC Issued on. 2012-05-07 2012-11-16 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. Please note that some of the content of this document may involve patents. Distribution of this document Institutions do not assume the responsibility to identify these patents. 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, People's Republic of China Entry-Exit Inspection and Lianyungang Quarantine Bureau. The main drafters of this standard. Liu Shan, Chen Xiaomei, Huang Chao-chun, Shi Lei, F. Cheng Jie, Tang Hang Yan, Wang Haitao. Determination of benzoyl peroxide in food for export Content High Performance Liquid Chromatography

1 Scope

This standard specifies a high performance liquid chromatography in food benzoyl peroxide detection. This standard applies to wheat flour, rice flour and potato starch and other foods by detecting benzoyl peroxide content. The first reduction method

2 Method summary

With methanol - extracted sample water of benzoyl peroxide (28 volume), in the extract sodium sulfite solution, and benzoyl peroxide Formyl-benzoic acid reduction, through 0.45μm membrane, the high performance liquid chromatograph, external standard.

3 Reagents and materials

Unless otherwise specified, reagents were of analytical grade, water is distilled or deionized water. 3.1 acetonitrile. HPLC grade. 3.2 Methanol. HPLC grade. 3.3 sodium sulfite. 3.4 ammonium acetate. 3.5 methanol - water (28 volume). Take 100mL of methanol (3.2), and 400mL water and mix. 3.6 4% sodium sulfite solution. Weigh 8.0g of sodium sulfite (3.3), dissolved in water and dilute to 200mL. 3.7 0.005mol/L ammonium acetate solution. Weigh 0.39g ammonium acetate (3.4), dissolved in water and dilute to 1000mL. 3.8 benzoyl peroxide (molecular formula. C14H10O4, CAS Number. 94-36-0) standard. not less than 98.0% purity. Benzoyl peroxide 3.9 standard stock solution. accurately weighed amount of benzoyl peroxide standard (3.8), with acetonitrile formulated to 200μg/mL Standard stock solution, 0 ℃ ~ 4 ℃ storage. 3.10 over the standard working benzoyl peroxide solution. If necessary, the standard stock solution with acetonitrile (3.9) diluted to the appropriate concentration of the standard work Solution. 3.11 0.45μm organic membrane.

4 instruments and equipment

4.1 High performance liquid chromatograph equipped with an ultraviolet detector or diode array detector. 4.2 Analysis of balance. a sense of the amount of 0.1mg and 0.01g. 4.3 Vortex device. 4.4 centrifuge. speed of not less than 4000r/min. ...

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