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SN/T 4000-2014: (Polycyclic aromatic hydrocarbon contaminants in food exports detection method GC - Mass Spectrometry)
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 4000-2014 | English | 729 |
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(Polycyclic aromatic hydrocarbon contaminants in food exports detection method GC - Mass Spectrometry)
| Valid |
SN/T 4000-2014
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Standard similar to SN/T 4000-2014 SN/T 5268 Basic data | Standard ID | SN/T 4000-2014 (SN/T4000-2014) | | Description (Translated English) | (Polycyclic aromatic hydrocarbon contaminants in food exports detection method GC - Mass Spectrometry) | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Word Count Estimation | 28,232 | | Date of Issue | 12/1/2014 | | Date of Implementation | 5/1/2015 | | Quoted Standard | GB/T 6682 | | Regulation (derived from) | State-Quality-Inspection-accreditation [2014] 614 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the export of 16 PAHs in food contaminants measured by gas chromatography - mass spectrometry method. This standard applies to fish, scallops, liver, fish, bacon, beef fat 16 PAHs screening. | SN/T 4000-2014: (Polycyclic aromatic hydrocarbon contaminants in food exports detection method GC - Mass Spectrometry)
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(Polycyclic aromatic hydrocarbon contaminants in food exports detection method GC - Mass Spectrometry)
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Method for detecting polycyclic aromatic hydrocarbons in exported food
Gas chromatography-mass spectrometry
Released on.2014-11-19
2015-05-01 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some of the contents of this document may involve patents. Publication of this document
The organization is not responsible for identifying these patents.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Zhejiang Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Shandong Entry and Exit Inspection of the People's Republic of China
Epidemic situation.
The main drafters of this standard. Shen Bing, Zhang Mengmeng, Wang Jianhua, Lei Meikang, Chen Jianwei, Ying Xiaohong, Qi Qihui, Wu Lili.
Method for detecting polycyclic aromatic hydrocarbons in exported food
Gas chromatography-mass spectrometry
1 Scope
This standard specifies the gas chromatography-mass spectrometry method for the determination of 16 polycyclic aromatic hydrocarbons in exported foods.
This standard applies to the screening of 16 polycyclic aromatic hydrocarbons in fish, scallops, pig liver, grilled fish, bacon and beef fat.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply 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
The polycyclic aromatic hydrocarbon pollutants in the sample were extracted with acetonitrile, and the extract was purified by GPC (gel chromatography) and then measured by a gas chromatography-mass spectrometer.
Internal standard method for quantification.
4 reagents and materials
All reagents were of analytical grade unless otherwise specified, and the water was the first grade water specified in GB/T 6682.
4.1 Hexane. Pesticide residue grade.
4.2 Acetonitrile. Pesticide residue grade.
4.3 Cyclohexane. pesticide residue grade.
4.4 Ethyl acetate. Pesticide residue grade.
4.5 Ethyl cyclohexane ethyl acetate (1, by volume).
4.6 Sodium chloride.
4.7 Polycyclic aromatic hydrocarbon standards. purity is not less than 97.5%, see Appendix A.
4.8 Internal standard. 氘 and 氘 benzo (a) 芘, the purity is greater than 99.0%.
4.9 Standard stock solution. Accurately weigh the appropriate amount of polycyclic aromatic hydrocarbon standard (4.7), dissolve it in n-hexane, and make up the volume in a 50mL volumetric flask.
Do not prepare a standard stock solution with a concentration of 1000mg/L, and store it in a -18 ° C refrigerator.
4.10 Internal standard stock solution. Accurately weigh the appropriate amount of internal standard (4.8), dissolve it in n-hexane, and dilute it in a 50mL volumetric flask.
Formulated into a standard stock solution at a concentration of 1000 mg/L, stored in a refrigerator at -18 ° C.
4.11 Mixed internal standard working solution. Accurately absorb a certain volume of internal standard stock solution (4.10), and dilute with cyclohexane ethyl acetate (4.5).
The 50μg/L mixed internal standard working solution was released and stored in a refrigerator at 0 °C ~ 4 °C.
4.12 Mixed standard working solution. Accurately absorb a certain volume of standard stock solution (4.9) and internal standard stock solution (4.10), using cyclohexane
Ethyl acetate (4.5) is diluted to a suitable concentration of the standard working solution and stored in a refrigerator at 0 ° C ~ 4 ° C.
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