T/GZTPA 0003-2021 Abolished Group standards

T/GZTPA 0003-2021 Determination of Fatty Acids in Guizhou Tea by Gas Chromatography-Mass Spectrometry

Publish Date: 2021-11-25 Implement Date: 2021-11-26 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/GZTPA 0003-2021

Standard Type: Group standards

Standard Status: Abolished

is_force_gb: no

CCS Name: Food Composite

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2021-11-25

Implement Date: 2021-11-26

Scope

The main technical content: Using adipic acid as an internal standard substance, a 10% (by volume) sulfuric acid-methanol solution is used to conduct a methyl esterification reaction on free fatty acids in tea leaves at room temperature (around 25°C). The methyl esterified products are extracted with dichloromethane, and the free fatty acid content in the extract solution is determined using a gas chromatograph-mass spectrometer detector.