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SN/T 3942-2014 English PDF

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SN/T 3942-2014: Food contact materials - Paper and regenerated fiber materials - Determination of alkylphenols - Liquid chromatography-tandem mass spectrometry
Status: Valid
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SN/T 3942-2014English319 Add to Cart 3 days [Need to translate] Food contact materials - Paper and regenerated fiber materials - Determination of alkylphenols - Liquid chromatography-tandem mass spectrometry Valid SN/T 3942-2014

PDF similar to SN/T 3942-2014


Standard similar to SN/T 3942-2014

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Basic data

Standard ID SN/T 3942-2014 (SN/T3942-2014)
Description (Translated English) Food contact materials - Paper and regenerated fiber materials - Determination of alkylphenols - Liquid chromatography-tandem mass spectrometry
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard X08
Classification of International Standard 67.250
Word Count Estimation 12,154
Date of Issue 4/9/2014
Date of Implementation 11/1/2014
Quoted Standard GB/T 6682
Regulation (derived from) State inspection certification (2014) 210
Issuing agency(ies) General Administration of Customs
Summary This standard specifies the paper, recycled fiber material in food contact materials alkylphenols liquid chromatography - mass spectrometry/mass spectrometry methods. This standard applies to the paper, measuring fiber material food contact materials octy

SN/T 3942-2014: Food contact materials - Paper and regenerated fiber materials - Determination of alkylphenols - Liquid chromatography-tandem mass spectrometry


---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.
(Paper food contact materials, recycled fiber material alkylphenols measured by liquid chromatography - mass spectrometry/mass spectrometry) People's Republic of China Entry-Exit Inspection and Quarantine Standards Food contact materials paper, recycled fiber material Determination of alkylphenols liquid chromatography - mass spectrometry/mass spectrometry Issued on. 2014-04-09 2014-11-01 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. 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. Chinese Academy of Inspection and Quarantine. The main drafters of this standard. Ma Qiang, Li Wentao, birch, Meng double Lijing Rui, Ma Kuaijuan TRANSACTIONS OF Ding Lan. Food contact materials paper, recycled fiber material Determination of alkylphenols liquid chromatography - mass spectrometry/mass spectrometry

1 Scope

This standard specifies the paper, recycled fiber material in food contact materials alkylphenols liquid chromatography - mass spectrometry/mass spectrometry methods. This standard applies to the paper, measuring fiber material food contact materials octyl phenol and nonylphenol regeneration.

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) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis

3 Method summary

Sample alkylphenols with anhydrous ethanol accelerated solvent extraction, and the extract after solid phase extraction (SPE), liquid chromatography - mass spectrometry/mass spectrometry Measurement method, external standard.

4 Reagents and materials

Unless otherwise indicated, the reagents used were of analytical grade water as a water GB/T 6682 regulations. 4.1 ethanol. 4.2 dichloromethane. HPLC grade. 4.3 Methanol. HPLC grade. 4.4 ammonia. 4.5 methanol - methylene chloride mixture. the amount of 10mL of methanol (4.3) and 40mL of dichloromethane, and mix. 4.6 octyl phenol standard substance. Formula C14H22O, CAS number. 140-66-9, purity of greater than or equal to 98%. 4.7 nonylphenol standard substance. Formula C15H24O, CAS number. 84852-15-3, purity of greater than or equal to 99%. Octyl phenol preparation 4.8 standard stock solution. Weigh accurately 100mg (accurate to 0.0001g) octyl phenol standard material, placed in 100mL Volumetric flask, dissolved in methanol (4.3) and dilute to volume, mix, formulated at a concentration of 1000mg/L standard stock solution, and close at 4 ℃ Sealed from light, valid for three months. 4.9 nonylphenol formulated standard stock solution. Weigh accurately 100mg (accurate to 0.0001g) nonylphenol standard material, placed in 100mL Volumetric flask, dissolved in methanol (4.3) and dilute to volume, mix, formulated at a concentration of 1000mg/L standard stock solution, and close at 4 ℃ Sealed from light, valid for three months. 4.10 preparation mixed standard stock solution. accurately Pipette respectively octyl phenol (4.8) and nonylphenol standard stock solution (4.9) into each 1mL 100mL flask with methanol to volume, formulated as a mixed standard stock solution at a concentration of 10μg/mL of. The organic phase was 4.11 microporous membrane. 0.45μm. 4.12 SPE. packing graphite carbon black, 500mg, 6mL, or equivalent person. Before using successively with 10mL of methanol - methylene chloride Mixture (4.5), 10mL of methanol (4.3) and 10mL dichloromethane (4.2) activation.

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