Ernst G E, Anderegg J P
J Assoc Off Anal Chem. 1976 Sep;59(5):1185-6.
A rapid method is described for the determination of the growth regulator ethephon (2-chloroethyl phosphonic acid) in tomatoes. Samples are extracted with ethyl acetate. The extract is methylated, decolorized with carbon, and analyzed by gas-liquid chromatography on a column packed with 15% QF-1/10% DC-200 on Chromosorb W (HP). A flame photometric detector is used. Recoveries from tomatoes fortified with 0.1-11.0 ppm ethephon were 78-98%. The sensitivity of this method is about 0.1 ppm.
本文描述了一种快速测定番茄中生长调节剂乙烯利（2-氯乙基膦酸）的方法。样品用乙酸乙酯萃取。萃取液进行甲基化处理，用活性炭脱色，然后在填充有15% QF - 1/10% DC - 200（涂覆于Chromosorb W（HP）担体上）的柱上进行气液色谱分析。使用火焰光度检测器。在添加了0.1 - 11.0 ppm乙烯利的番茄中的回收率为78 - 98%。该方法的灵敏度约为0.1 ppm。
