T/CTMA 007-2020 Active Group standards

T/CTMA 007-2020 Determination of Residual Chlorothiazoline in Tea by Liquid Chromatography-Mass Spectrometry/Mass Spectrometry

Publish Date: 2020-01-20 Implement Date: 2020-02-01 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/CTMA 007-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Food Composite

ICS Name: Tea

Publish Date: 2020-01-20

Implement Date: 2020-02-01

Scope

Main technical content: 1. Determination principle: Chlorothalonil in the sample is extracted by shaking with acetonitrile, and the extract is purified by dispersive solid-phase extraction. The adsorbent interacts with impurities in the matrix to adsorb them, thus achieving the purpose of purification. The purified solution is detected by liquid chromatography-tandem mass spectrometry, and quantification is performed using the standard curve and external standard method. 2. Reagents and materials 3. Instruments and equipment 4. Pretreatment methods 5. Determination 6. Result calculation 7. Precision 8. Quantification limit and recovery rate