SN/T 2038-2007 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2038-2007	719	Add to Cart	3 days	Determination of aniline and 4, 4-methylenedianiline from plastic utensils in food simulants. HPLC/UV	Obsolete

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Basic data

Standard ID: SN/T 2038-2007 (SN/T2038-2007)
Description (Translated English): Determination of aniline and 4, 4-methylenedianiline from plastic utensils in food simulants. HPLC/UV
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: Y28
Classification of International Standard: 83.140.01
Word Count Estimation: 18,110
Date of Issue: 2007-12-24
Date of Implementation: 2008-07-01
Quoted Standard: GB/T 5009.156; 82/711/EEC; 2002/72/EC
Regulation (derived from): National-accreditation-Science [2011] 63
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the determination of plastic cutlery in aniline and 4, 4 ' methylenedianiline specific migration liquid chromatography method This standard applies to foods with a nylon tableware aniline and 4, 4 ' methylenedianiline migration Determination.

SN/T 2038-2007: Determination of aniline and 4, 4-methylenedianiline from plastic utensils in food simulants. HPLC/UV

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Determination of aniline and 4, 4 "-methylenedianiline from plastic utensils in food simulants.HPLC/UV Exit inspection and quarantine industry standard book People's Republic of China Plastic cutlery aniline and 4,4'-methylene dianiline Migration of HPLC Posted 2007-12-24 2008-07-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

Appendix A of this standard is a normative appendix, Appendix B is an informative annex. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. The standard by the China Academy of Inspection and Quarantine is responsible for drafting. The main drafters of this standard. Sun Li, Chen Zhifeng, Guo Wei, Ling Yun, Yong Wei. This standard is the first release of the entry-exit inspection and quarantine industry standards. Plastic cutlery aniline and 4,4'-methylene dianiline Migration of HPLC

1 Scope

This standard specifies the determination of aniline plastic tableware and liquid chromatography 4,4'-methylene dianiline the specific migration. This standard applies to the determination nylon utensils used for food aniline and 4,4'-methylene dianiline the specific migration.

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. GB/T 5009.156 immersion test method for packaging food materials and products General The basic provisions of 82/711/EEC and food contact plastic materials and products in the migration of the constituents detected 2002/72/EC Committee on food contact plastic materials and products Directive

3 Method summary

After the samples were soaked food simulants, the amount of a certain amount of mimetic soaking solution by solid phase extraction, liquid chromatography - ultraviolet detector test Set of plastic tableware aniline and 4,4'-methylene dianiline migration external standard for quantitative analysis.

4 Reagents and materials

Unless otherwise specified, all reagents were of analytical grade water for ultra-pure water. 4.1 acetonitrile. HPLC grade. 4.2 Methanol. HPLC grade. 4.3 Sodium hydroxide solution. Weigh 8.0g of solid sodium hydroxide, placed in 250mL beaker, 100mL of water was added to dissolve, the material obtained The amount of concentration of 2mol/L sodium hydroxide solution, transferred to a plastic bottle storage. 4.4 Sodium hydroxide solution. amount of 5mL2mol/L sodium hydroxide solution in a plastic bottle 150mL, 95mL of water was added to obtain a substance The amount of concentration of 0.1mol/L sodium hydroxide solution. 4.5 acetic acid solution. Weigh 1.2g of acetic acid in 250mL beaker, 200mL of water, mix, amount of substance concentration is obtained 0.1mol/L solution of acetic acid. 4.6 aniline, 4,4'-methylene dianiline. standards, a purity of > 99.0%. 4.7 Solid phase extraction column EnviChromP (6mL, 500mg) or equivalent. 4.8 food simulants. 4.8.1 ultrapure water (simulant A). 4.8.2 3% (mass concentration) solution (mimetics B) acetic acid. 15.0 g of weighed (to the nearest 0.1g) acetic acid, diluted with water and transferred to 500mL volumetric flask, and water to volume. 4.8.3 15% (volume fraction) aqueous ethanol (simulant C). amount of ethanol in 75mL 500mL flask, water to volume. 4.9 standard stock solution. Weigh aniline and 4,4'-methylene dianiline each 10.0mg (accurate to 0.1mg), diluted with methanol and transferred to a 50mL brown volumetric flask, methanol to volume, mix well to give a concentration of 200mg/L of standard stock solution, 4 ℃ under dark protection Keep aside. ......

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