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Determination of dioxane residues in cosmetics for import and export. Gas chromatography-mass spectrometry method
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SN/T 1784-2006
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Basic data | Standard ID | SN/T 1784-2006 (SN/T1784-2006) | | Description (Translated English) | Determination of dioxane residues in cosmetics for import and export. Gas chromatography-mass spectrometry method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | Y42 | | Classification of International Standard | 71.100.70 | | Word Count Estimation | 8,871 | | Date of Issue | 2006-04-25 | | Date of Implementation | 2006-11-15 | | Quoted Standard | GB/T 6379 | | Regulation (derived from) | Industry Standard Notice 2006 No. 7 (No. 79 overall) | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the use of gas chromatography mass spectrometry dioxane in cosmetics residues approach. This standard applies to cosmetics dioxane residues. This standard dioxane limit of determination: 2. 5mg/kg. | SN/T 1784-2006: Determination of dioxane residues in cosmetics for import and export. Gas chromatography-mass spectrometry method
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Determination of dioxane residues in cosmetics for import and export.Gas chromatography-mass spectrometry method
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Determination of dioxane residues in cosmetics for import and export
Gas chromatography tandem mass spectrometry
Released on.2006-04-25
Implementation of.2006-11-15
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
Appendix A and Appendix B of this standard are informative annexes.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted by the China Academy of Inspection and Quarantine.
The main drafters of this standard. Wang Chao, Ji Meiqin, Wang Xing, Hao Nan, Cai Tianpei.
This standard is the first industry standard for entry-exit inspection and quarantine.
Determination of dioxane residues in cosmetics for import and export
Gas chromatography tandem mass spectrometry
1 Scope
This standard specifies the method for the determination of dioxane residues in cosmetics by gas chromatography-mass spectrometry.
This standard applies to the determination of dioxane residues in cosmetics.
The lower limit of determination of this standard dioxane. 2.5mg/kg.
2 Normative references
The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all
Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study
Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard.
GB/T 6379 Accuracy of measurement methods and results (correctness and precision) (all parts)
3 Principle
After the sample is heated and extracted in the headspace bottle, it is determined by gas chromatography-mass spectrometry (GC/MSD) method, and the external standard method is used for quantification.
The test is made to determine.
4 reagents and materials
Unless otherwise specified, the reagents used were of analytical grade and the water was secondary water.
4.1 Dioxane. purity 98%.
4.2 Dioxane standard stock solution. Accurately weigh the appropriate amount of dioxane standard (accurate to 0.0001g). Water is configured to a concentration of
Standard stock solution of 1000 μg/mL. The stock solution is stored in a 4 ° C refrigerator and can be used for 2 months.
4.3 Dioxane standard working solution. The above (4.2) stock solution was separately mixed with methanol to a dioxane concentration of 0.1 μg/mL, 0.5 μg/mL,
1 μg/mL, 10 μg/mL, 20 μg/mL, 50 μg/mL, and 100 μg/mL standard working solution were stored at 4 ° C for 1 week.
5 instruments
5.1 Gas Chromatograph. equipped with a mass selective detector (MSD).
5.2 Headspace Sampler.
5.3 Headspace bottle. 20mL.
5.4 Analytical balance. Sensitivity 0.0001g.
5.5 Ultrasonic cleaning instrument.
6 Determination steps
6.1 Sample Processing
Accurately weigh 2.0g of the mixed sample to the nearest 0.001g, place it in the headspace sample bottle, add 1g of sodium chloride solid, add 8mL of steam
The distilled water was sealed, gently shaken, placed in a headspace sampler, and equilibrated at 70 ° C for 40 min. Take 1 mL of the upper gas after the gas is equilibrated.
Into gas chromatography-mass spectrometry.
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