代谢
用放射性碳(14)C标记的2,4-D异丙酯处理柠檬表明,该酯被水解,部分2,4-D随后与某些植物成分反应形成类似酯的复合物。...通过混合从喷洒了2,4-D异丙酯的橙树上获得的橙皮样本,准备了新鲜柑橘皮样本。除了游离酸和酯外,还发现了共轭物。后者只有在热处理后才能被提取。...初步调查表明2,4-D与果胶发生了共轭。
TREATMENT OF LEMONS WITH (14)C LABELED 2,4-D ISOPROPYL-ESTER INDICATED THAT THE ESTER WAS HYDROLYZED & PART OF 2,4-D THEN REACTED WITH SOME PLANT CONSTITUENT TO FORM AN ESTER-LIKE COMPLEX. ... SAMPLES OF FRESH CITRUS PEEL WERE PREPARED BY COMPOSITING PEEL SAMPLES OBTAINED FROM ORANGES FROM TREES SPRAYED WITH 2,4-D ISOPROPYL ESTER. IN ADDITION TO FREE ACID & ESTER, CONJUGATE WAS ALSO FOUND. LATTER BECAME AVAILABLE FOR EXTRACTION ONLY AFTER HEAT TREATMENT. ... PRELIMINARY INVESTIGATING INDICATED 2,4-D WAS CONJUGATED WITH PECTIN ...
来源:Hazardous Substances Data Bank (HSDB)