Rapid Detection Method of Total Amount of Carbamate Pesticides in Water

Abstract:

A long-acting detection agent for carbamate pesticides （CMs） was designed and developed. The CMs in water were extracted and alkalized by mixter and digester， and then the long-acting detection agent and portable water quality detector were used to realize the rapid detection of CMs on site. The relative standard deviations （RSDs） of this method are 2.86% （0.8 μmol·L^-1 CMs） and 1.61% （2.4 μmol·L^-1 CMs）， the limit of detection （LOD） is 0.07 μmol·L^-1， the detection period is only 40 min， and the spiked recovery of real water samples is 60%~78%. The analysis results of the spiked water samples from the Taipu River show that the detection results of rapid detection method and GC-MS have good consistency.

Key words:rapid detection;vector colorimetric method;long-acting detection agent;carbamate pesticides