본 연구에서는 농업용수 중 잔류성유기염소계 농약의 잔류량을 조사하고자 하였고, 분석을 위한 시료 전처리 방법은 액액분배법을 사용하였다. 잔류성유기염소계 농약의 검출한계, 회수율 및 상대표준편차는 각각 $0.001-0.004{\mu}g/L$, 73.7-110.9% 및 0.9-4.2%의 범위로 적합한 결과를 나타냈다. 전국 88개 시군에서 채취한 농업용수 시료에서는 조사대상 잔류성유기염소계 농약 중 ${\alpha}$-endosulfan, ${\beta}$-endosulfan 및 endosulfan sulfate 만이 검출되었고, 그 수준은 각각 0.11-0.18, 0.08-0.12 및 $0.11-0.13{\mu}g/L$이었다. 조사대상 시료 중 ${\alpha}$-endosulfan, ${\beta}$-endosulfan 및 endosulfan sulfate가 각각 8 (9.1%), 10 (11.4%) 및 20 (22.7%)개 시료에서 검출되었다. 이상의 결과는 농업용수에서 endosulfan류가 검출양이 일부 수성생물에 영향을 줄 수 있어 지속적인 모니터링 조사가 수행되어야 함을 나타냈다.
본 연구에서는 농업용수 중 잔류성유기염소계 농약의 잔류량을 조사하고자 하였고, 분석을 위한 시료 전처리 방법은 액액분배법을 사용하였다. 잔류성유기염소계 농약의 검출한계, 회수율 및 상대표준편차는 각각 $0.001-0.004{\mu}g/L$, 73.7-110.9% 및 0.9-4.2%의 범위로 적합한 결과를 나타냈다. 전국 88개 시군에서 채취한 농업용수 시료에서는 조사대상 잔류성유기염소계 농약 중 ${\alpha}$-endosulfan, ${\beta}$-endosulfan 및 endosulfan sulfate 만이 검출되었고, 그 수준은 각각 0.11-0.18, 0.08-0.12 및 $0.11-0.13{\mu}g/L$이었다. 조사대상 시료 중 ${\alpha}$-endosulfan, ${\beta}$-endosulfan 및 endosulfan sulfate가 각각 8 (9.1%), 10 (11.4%) 및 20 (22.7%)개 시료에서 검출되었다. 이상의 결과는 농업용수에서 endosulfan류가 검출양이 일부 수성생물에 영향을 줄 수 있어 지속적인 모니터링 조사가 수행되어야 함을 나타냈다.
This study was conducted to investigate residual organochlorine pesticides (OCPs) in agricultural waters. Extraction and clean-up method were developed using the liquid-liquid extraction for OCPs in water. Limit of detection (LOD), recovery, and relative standard deviation (RSD) of OCPs and in agric...
This study was conducted to investigate residual organochlorine pesticides (OCPs) in agricultural waters. Extraction and clean-up method were developed using the liquid-liquid extraction for OCPs in water. Limit of detection (LOD), recovery, and relative standard deviation (RSD) of OCPs and in agricultural waters ranged from $0.001-0.004{\mu}g/L$, 73.7-110.9%, and 0.9-4.2%, respectively. The residues of OCPs in agricultural water were analyzed by the developed method, and ${\alpha}$-endosulfan, ${\beta}$-endosulfan, and endosulfan sulfate were detected at 0.11-0.18, 0.08-0.12, and $0.11-0.13{\mu}g/L$, respectively. The detection number of three compounds in agricultural water were 8 (9.1%), 10 (11.4%), and 20 (22.7%) among 88 samples, respectively. These results showed that endosulfans were detected in agricultural waters and the continuous monitoring of them will be conducted.
This study was conducted to investigate residual organochlorine pesticides (OCPs) in agricultural waters. Extraction and clean-up method were developed using the liquid-liquid extraction for OCPs in water. Limit of detection (LOD), recovery, and relative standard deviation (RSD) of OCPs and in agricultural waters ranged from $0.001-0.004{\mu}g/L$, 73.7-110.9%, and 0.9-4.2%, respectively. The residues of OCPs in agricultural water were analyzed by the developed method, and ${\alpha}$-endosulfan, ${\beta}$-endosulfan, and endosulfan sulfate were detected at 0.11-0.18, 0.08-0.12, and $0.11-0.13{\mu}g/L$, respectively. The detection number of three compounds in agricultural water were 8 (9.1%), 10 (11.4%), and 20 (22.7%) among 88 samples, respectively. These results showed that endosulfans were detected in agricultural waters and the continuous monitoring of them will be conducted.
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