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Cleanert TPT

Summary

Cleanert TPT constitutes three type of materials, which employ different mechanisms to get rid of the interferences such as colorants, organic acids, polyphenols as well as nonpolar matrix.

Cleanert TPT NEW !

—— Triple Phases SPE for Tea Leaves


Description

Cleanert TPT constitutes three type of materials, which employ different mechanisms to get rid of the interferences such as colorants, organic acids, polyphenols as well as nonpolar matrix. By mixing different materials together, we can achieve a better cleanup result for complicated sample matrices. Cleanert TPT is developed for determination of residues of 653 Multi class Pesticides and Chemical Pollutants in Tea, which has been recommended by AOAC official method and Chinese National Standard Method.

AOAC 2014.09 - Determination and Confirmation of Residues of 653 Multiclass Pesticides and Chemical Pollutants in Tea GC-MS, GC-MS/MS, and LC-MS/MS First Action 2014
An efficient and sensitive method has been established for simultaneous determination of 653 pesticides in teas by GCMS and LC-MS/MS. The method involved extraction with acetonitrile followed by GC-MS and 448 pesticides by LC-MS/ MS respectively. The limits of detection by LC-MS/MS were between 0.03 and 4820 μg/kg. At the low fortification levels of 0.01-100 μg/kg. The average recoveries of 94% pesticides determined by GC-MS were between 60% and 120%. Among 775 of which had a relative standard between 60% and 120% for 91% of them. Among 76% of which had RSD below 20%. The paper also reported a novel SPE column. Cleanert TPT cartridge, which is comprised of graphitized carbon black(PestiCarb). Polyamine silica and amide polystyrene for purifying the tea samples. The results indicated that the cartridge has relatively higher cleanup capabilities for tea samples and a good repeatability and reproducibility were also observed.

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