취나물 재배 중 methoxyfenozide 및 novaluron을 살포하고, 0일부터 10일까 총 7회 시료를 채취하였다. Methoxyfenozide와 novaluron은 methanol로 추출한 후 dichloromethane으로 분배하여 HPLC로 분석하였다. 분석결과 0.4 ㎎ㆍ㎏?¹과 2 ㎎ㆍ㎏?¹수준에서 methoxyfenozide의 평균회수율은 102.5±3.03% 및 84.4±2.82%이었고, novaluron은 88.7±2.32% 및 90.6±4.50%이었다. 재배기간 중 methoxyfenozide의 기준량 잔류반감기는 3.99일이고, novaluron은 3.16일 이었다. 증체량에 따른 희석효과를 배제한 잔류감소곡선은 novaluron의 경우 잔류량 감소의 주요인으로 작용하지 않았다. Methoxyfezide와 novaluron을 안전사용기준에 따라 처리시, 최종잔류농도는 MRL이하로 떨어질 것으로 계산된다.
Methoxyfenozide and novaluron was sprayed on Aster scaber during cultivation period. Samples were collected 7 times in 0-10 days after spraying. Both methoxyfenozide and novaluron were extracted with methanol, partitioned with dichloromethane and analyzed by HPLC. At the fortified level of 0.4 and 2 ㎎ㆍ㎏?¹, average recovery of methoxyfenozide were 102.5±3.03 and 84.4±2.82%, and novaluron were 88.7±2.32 and 90.6±4.50%, respectively. Biological half-life of methoxyfenozide was 3.99 days and novaluron which was 3.16 days at recommended spray level on cultivation period of the plant. The major reducing factor of novaluron was the increased weight of the plant. In case of application of methoxyfenozide and novaluron following pesticide guide line for safe use, the final residue level was calculated to lower than maximum residue level(MRL).