Mostafa I Y, Zayed S M, Adam Y M, Attaby H S
J Environ Sci Health B. 1982;17(3):265-75. doi: 10.1080/03601238209372318.
3H-labelled trifluralin was synthesized by condensation of 3H-4-chloro-3,5-dinitro-alpha,alpha,alpha-triflurotoluene with di-n-propyl-amine. The labelled herbicide was applied to autoclaved and non-autoclaved heavy, light and sandy soils at 30 ppm. The treated samples were incubated for 2 months, then extracted and analyzed for metabolic products and bound (nonextractable) 3H-residues. The amounts of bound residues were higher in autoclaved than in nonautoclaved and in sandy than in either heavy or light soils. The mono- and didealkylated products were detected as well as unknown polar derivatives. 3H-residues bound to preextracted soils were absorbed by bean plants. The roots contained (0.20 - 0.72 ppm) more residues than did the shoots (0.07 - 0.15 ppm) and the uptake was higher in the case of autoclaved especially sandy soils.
通过将³H - 4 - 氯 - 3,5 - 二硝基 - α,α,α - 三氟甲苯与二正丙胺缩合，合成了³H标记的氟乐灵。将标记的除草剂以30 ppm的浓度施用于经高压灭菌和未经高压灭菌的重质、轻质和沙质土壤。处理后的样品孵育2个月，然后进行提取，并分析代谢产物和结合态（不可提取）的³H残留。结合态残留量在经高压灭菌的土壤中高于未经高压灭菌的土壤，在沙质土壤中高于重质或轻质土壤。检测到了单去烷基化和双去烷基化产物以及未知的极性衍生物。与预先提取的土壤结合的³H残留被豆类植物吸收。根部含有的残留量（0.20 - 0.72 ppm）比地上部分（0.07 - 0.15 ppm）更多，并且在经高压灭菌的土壤尤其是沙质土壤中吸收量更高。
