균일(均一)하게 환표식(環標識)된 $^{14}C-butachlor$를 2종(二種)의 한국토양중에서 3개월간(三個月間) 혐기적으로 배양시 생성된 $^{14}CO_2$와 휘발성 물질의 량(量)은 근소하였다. 토양A에서는 고압살균한 경우와 살균하지 않은 경우 처리된 방사능의 77.52%와 45.36%가 각각 MeOH로 추출되었고 나머지는 토양중에 흡착되었다. 반면 토양B에서는 58.85%와 37.23%가 각각 추출되었고 나머지는 토양중에 잔류하였다. $^{14}C-butachlor$의 흡착은 토양의 특성에 좌우되었다. 또한 GLC-MS에 의하여 2,6-diethyl-N-(butoxymethyl)-acetanilide가 주된 대사산물로 밝혀졌고 2,6-diethyl aniline과 2,6-diethyl acetanilide는 소량 생성되었다.
In an anaerobic incubation of uniformly ring-labeled $^{14}C-butachlor$ in two Korean soils for 3 months, very little $^{14}CO_2$ and volatile products were measured. In soil A, 77.52 and 45.36% of the sterile and viable soil radioactivity, respectively, were methanol-extractable and the rest were adsorbed in soil; whereas in soil B, 58.85 and 37.23%, respectively, were methanol-extractable and the rest remained in soil. The adsorption of $^{14}C-butachlor$ depends on the characteristics of the soils. The major metabolite was 2,6-diethyl-N-(butoxymethyl) acetanilide. 2,6-Diethylaniline and 2,6-diethylacetanilide turned out to be the minor metabolites on GLC-MS.
