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Development and Validation of Analytical Method for Pesticide Multi-Residue in Soil and Water Using GC-ECD/NPD
토양 및 농업용수에서 농약 다성분 동시분석법의 확립 및 유효성 검증 (GC-ECD/NPD)

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Authors
이진범
Advisor
김정한
Major
농업생명과학대학 농화학과
Issue Date
2014-02
Publisher
서울대학교 대학원
Keywords
soilagricultural watermultiresidue analysismethod validationGC-ECDGC-NPDmeasurement uncertainty
Description
학위논문 (석사)-- 서울대학교 대학원 : 농화학과, 2014. 2. 김정한.
Abstract
It needs to safety control for agricultural soil, water that directly effect on producing and safety of crops. This research developed pesticide multiresidue analysis method based on NAQS for 166 pesticides (GC-ECD : group1 26, group2 23, group3 24, group4 24, GC-NPD group 1 18, group2 18, group3 17, group4 16 compounds) and validated method according to KOLAS guideline. On developing method, extraction, wetting and purification steps were optimized. Compared acetonitrile, dichloromethane, ethyl acetate as extraction solvent and the result of acetonitrile was best. In extraction of soil sample, NaCl 20g was changed to saturated brine 30 mL. Water sample was only filtrated, without purification. Developed method was applied to 3 soil samples (paddy, field, and orchard) and 4 water sample (distilled water, river, underground water and lake) and tested 7 times. From this date, validation parameters on KOLAS guideline (linearity, precision, trueness & bias, method LOD/LOQ, sensitivity, selectivity, working range, ruggedness) were calculated. Measurement uncertainty was estimated from monitoring sample collected in whole country. Endosulfan sulfate was used for GC-ECD and its measurement uncertainty was 1.662 ± 0.121 μg/kg (k=2.042) and chlorpyrifos(GC-NPD) was 0.0076 ± 0.0011 μg/kg (k=2.086)
Language
English
URI
http://hdl.handle.net/10371/126015
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College of Agriculture and Life Sciences (농업생명과학대학)Dept. of Agricultural Biotechnology (농생명공학부)Theses (Master's Degree_농생명공학부)
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