GB/T 37760-2019Determination of perfluorooctanoic acid and perfluorooctane sulfonic acid in electronic and electrical products - Ultra high performance liquid chromatographic method with tandem mass spectrometry (English PDF)
电子电气产品中全氟辛酸和全氟辛烷磺酸的测定 超高效液相色谱串联质谱法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 4, 2019
Implementation date
January 1, 2020
Scope
GB/T 37760-2019 is the English-translated version of 电子电气产品中全氟辛酸和全氟辛烷磺酸的测定 超高效液相色谱串联质谱法.
GB/T 37760-2019 is the Chinese standard "Determination of perfluorooctanoic acid and perfluorooctane sulfonic acid in electronic and electrical products - Ultra high performance liquid chromatographic method with tandem mass spectrometry".
Its scope clause reads: This standard specifies the method for the determination of perfluorooctanoic acid and perfluorooctane sulfonic acid in electronic and electrical products by ultra performance liquid chromatography tandem mass spectrometry.
This standard applies to the determination of perfluorooctanoic acid and perfluorooctane sulfonic acid in polymer materials for electrical and electronic products. Its clauses include principle; reagents and materials.
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Document preview — GB/T 37760-2019
National Standard of the People's Republic of China
- ICS
- 31.020
- Classification
- L 10
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Principle
- 4 reagents and materials
1 Scope
This standard specifies the method for the determination of perfluorooctanoic acid and perfluorooctane sulfonic acid in electronic and electrical products by ultra performance liquid chromatography tandem mass spectrometry.
This standard applies to the determination of perfluorooctanoic acid and perfluorooctane sulfonic acid in polymer materials for electrical and electronic products.
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
GB/T 26125-2011 Six restricted substances for electrical and electronic products (lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers)
Determination
SJ/T 11692 Guidelines for the separation of restricted substances in electronic and electrical products
3 Principle
The sample is extracted with methanol as a solvent, and after being extracted by an ultrasonic water bath, the membrane is cooled to be a liquid to be tested, and an appropriate amount of the liquid to be tested is used for ultra performance liquid chromatography.
The tandem mass spectrometry (UHPLC-MS/MS) was used for analysis, and the content of perfluorooctanoic acid or perfluorooctane sulfonic acid in the sample was quantitatively calculated by an external standard method.
4 reagents and materials
4.1 Water
Primary water specified in GB/T 6682.
4.2 Methanol
Chromatographically pure.
4.3 Acetonitrile
Chromatographically pure.
4.4 Perfluorooctanoic acid standard substance
purity is greater than or equal to 98%, the molecular formula is C7F15COOH, and the CAS number is 335-67-1.
4.5 PFOS reference material
purity greater than or equal to 98%, molecular formula is C8F17SO2OH, CAS number is 1763-23-1.
4.6 Ammonium acetate
chromatographically pure.
4.7 Liquid nitrogen
industrial grade.
4.8
Standard stock solution of perfluorooctanoic acid and perfluorooctane sulfonate. accurately weighed perfluorooctanoic acid (see 4.4) and PFOS (see 4.5)
10mg (accurate to 0.0001g) in a 100mL volumetric flask, dissolved in methanol (see 4.2) and diluted to the mark, shake well, the concentration is
100 µg/mL perfluorooctanoic acid and perfluorooctane sulfonic acid mixed standard stock solution.
4.9
Standard working solution of perfluorooctanoic acid and perfluorooctane sulfonate. accurately measure the appropriate volume of perfluorooctanoic acid and perfluorooctane sulfonate
The standard stock solution (see 4.8) is diluted in methanol (see 4.2) in a 10 mL volumetric flask and brought to volume to obtain a concentration of 10 ng/mL.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
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