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- W2378633949 abstract "Pentachlorophenol(PCP)is a widely used antiseptic,pesticide in the world.It can cause potential mutation on people as well as other living organisms.To establish a convenient,credible,practical method to determine PCP in contaminated soil is of great importance to study both the fate and the remediation technology in environment.In this paper,ultrasound assisted extraction and high performance liquid chromatography analysis was developed to measure PCP residual in Qingzi soil.The results showed that PCP recovery for the method was depended on various extracting reagents,extracting time and pH,temperature in the extracting system.Due to the lower pKa of PCP(4.93),acidifying soil with H2SO4 can improve recovery efficiently,especially using acetonitrile as extraction reagent.In addition,relative higher temperature and longer extracting time were also benefit to the extraction.It may be suggested that the method using acetonitrile as extraction reagent,adding 0.045 mol·L-1 H2SO4 to acidify,and then ultrasonic radiating for 60 min under 40℃ after vibrating for 30 min be optimized,gaining PCP recovery up to 87%~108%.Besides,we confirmed that air-dried,ground soil was in favor of extraction rather than fresh soil when determining the PCP residual in long-term contaminated soil." @default.
- W2378633949 created "2016-06-24" @default.
- W2378633949 creator A5083643173 @default.
- W2378633949 date "2005-01-01" @default.
- W2378633949 modified "2023-09-24" @default.
- W2378633949 title "Determination of Pentachlorophenol in Qingzi Soil by High Performance Liquid Chromatography with Ultrasound Assisted Extraction" @default.
- W2378633949 hasPublicationYear "2005" @default.
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