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Cleanert
TPT
PestiCarb (PC)
polyamine silica
Amide polystyrene
An exclusive cleanup column for tea has been optimized and selected by a comparative study of
the cleanup results from 6 cleanup materials.
a three-group Cleanert TPT Cartridge has been developed, which has a unique
cleanup effect on 653 chemical compounds in tea.
removes foreign matters
such as volatile organic
acids, tea polyphenol, etc.
removes pigments and
foreign matters other
than theophylline
removes the pigments
in tea without
absorbing the target
pesticides
Patent number: 201310056873X
Correlation comparison of fortified recoveries of 456 pesticides with pesticide logKow values with the
three methods of M1, M2 and M3
Diagram of correlation distribution of pesticide recoveries with logKow within the
range of -0.77
～
8.20 at three fortification levels of M1, M2 and M3
Special study on the effect of tea hydration on the efficiency of the analytical method
329 out of 456 pesticides have been found to have logKow values
(logKow range: -0.75
～
+8.20)
. A
scatter diagram is drawn with logKow as horizontal ordinate and recoveries as vertical ordinate, and a chart of
correlations of recoveries for the three methods at three fortification levels with pesticide polarities is derived.
The pesticide number within 70-120% recovery at three fortification levels
M1
M2
M3