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HERBICIDES Solid Phase Extraction pdf

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Figure

Table 1Chemical structure of major classes of herbicides according to the character that determines the SPE procedure used
Table 5Recovery of herbicides from 200-mL groundwatersamples by using one cartridge containing GCB and anionexchanger comparedwiththatfromtwootherextractionmethods
Table 7Base}neutral/acid fractionation by differential elution of selected compounds with cartridges containing three different typesof GCB at two eluents
Figure 1Effect of the pH of the sample on the preconcentration of 500 mL of drinking water spiked at 0.1phase, acetonitrile gradient with 0.005 �g L�1
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