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Recoveries of 24 representative pesticides showing a large recovery difference greater than 25% depending on dSPE sorbent combination (PSA + C18, PSA, and C18). PA, propionic acid; TA, tetramic acid; TK, triketone; I, imidazolinone; SA, sulfonamide; SU, sulfonylurea; and TU, thiadiazolylurea. The error bars are the standard deviations of the recovery rates (n = 3).
