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SN/T 4588-2016: Determination of perfluorinated alkyl compounds in vegetables and fruits for export--LC-MS/MS method
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Determination of perfluorinated alkyl compounds in vegetables and fruits for export--LC-MS/MS method
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SN/T 4588-2016
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Basic data | Standard ID | SN/T 4588-2016 (SN/T4588-2016) | | Description (Translated English) | Determination of perfluorinated alkyl compounds in vegetables and fruits for export--LC-MS/MS method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X24 | | Word Count Estimation | 34,343 | | Date of Issue | 2016-08-23 | | Date of Implementation | 2017-03-01 | | Regulation (derived from) | State-Quality-Inspection-Certification (2016)438 | | Issuing agency(ies) | General Administration of Customs | SN/T 4588-2016: Determination of perfluorinated alkyl compounds in vegetables and fruits for export--LC-MS/MS method
---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 perfluoroalkyl compounds in vegetables and fruits for export - Determination by liquid chromatography - tandem mass spectrometry)
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Determination of various perfluoroalkyl compounds in vegetables and fruits for export
Liquid chromatography-tandem mass spectrometry
Published on.2016-08-23
2017-03-01 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. Jilin Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Shenyang Entry-Exit Inspection of the People's Republic of China
Epidemic situation.
The main drafters of this standard. Zhou Xiao, Jin Yan, Lu Lijun, Hu Tingting, Yang Lan, Zhao Yuhui, Kang Mingqin.
Determination of various perfluoroalkyl compounds in vegetables and fruits for export
Liquid chromatography-tandem mass spectrometry
1 Scope
This standard specifies the liquid chromatography-tandem mass spectrometry and confirmation methods for various perfluoroalkyl compounds in vegetables and fruits.
This standard applies to apple, peach, grape, tomato, Chinese cabbage, spinach, perfluorobutyric acid, perfluoropentanoic acid, perfluorobutane sulfonic acid, perfluorohexane
Determination of acid, perfluoroheptanoic acid, perfluorohexanesulfonic acid, perfluorooctanoic acid, perfluorodecanoic acid, perfluorooctane sulfonic acid, perfluorodecanoic acid.
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 sample was added with tetrabutylammonium hydrogen sulfate (TBA) solution and sodium carbonate solution, and extracted with methyl tert-butyl ether solution.
Ion exchange solid phase extraction column purification, liquid chromatography-tandem mass spectrometry, external standard method for quantification.
4 reagents and materials
Unless otherwise specified, the reagents used were of analytical grade and the water was the first grade water specified in GB/T 6682.
4.1 Methanol. chromatographic grade.
4.2 methyl tert-butylether (MTBE). chromatographic grade.
4.3 tetrabutylammonium hydrogensulfate (TBA). excellent grade pure.
4.4 Sodium carbonate. excellent grade.
4.5 Sodium acetate. excellent grade pure.
4.6 Formic acid. excellent grade.
4.7 Ammonia, 37%.
4.8 0.5 mol/L TBA solution. Take 72.0 g of TBA (4.3), dissolve in water and dilute to 1000 mL.
4.9 0.05 mol/L sodium carbonate solution. Take 5.3 g of sodium carbonate, dissolve in water and dilute to 1000 mL.
4.10 25 mmol/L sodium acetate solution. Take 2.05 g of sodium acetate, dissolve in water and dilute to 1000 mL.
4.11 0.1% ammoniated methanol solution (volume ratio). Take 0.1mL ammonia water, dilute with methanol and dilute to 100mL.
4.12 0.1% formic acid solution. Measure 0.10 mL of formic acid (4.6), dilute to 1000 mL with water, and mix.
4.13 Methanol-0.1% formic acid solution (7 3, volume ratio). Measure 70 mL of methanol, 30 mL of 0.1% formic acid solution, and mix.
4.14 perfluorobutyric acid, perfluoropentanoic acid, perfluorobutanesulfonic acid, perfluorohexanoic acid, perfluoroheptanoic acid, perfluorohexanesulfonic acid, perfluorooctanoic acid, perfluorodecanoic acid, all
Fluorooctane sulfonic acid, perfluorodecanoic acid standard material. purity greater than or equal to 98%. See Table A.1 for details of reference materials.
4.15 Standard stock solution. Accurately weigh the standard substance (accurate to 0.1mg, based on the perfluorochemical acid group), dissolve it with methanol and quantitatively transfer
Move to a 100mL volumetric flask, make up to volume of methanol, shake well, and prepare a standard stock solution.
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