ガスクロマトグラフ法による新殺菌剤デンマート®*の分析

概要

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A quantitative method for the determination of S-n-butyl S-p-tert-butylbenzyl N-3-pyridyldithiocarbonimidate (Denmert_??_) and its formulations was developed by gas chromatography (GC). Denmert was separated from its m-isomer and impurities by an apparatus equipped with a hydrogen flame ionization detector (FID) and determined by using 1, 3, 5-triphenylbenzene as an internal standard, under the following GC conditions; gas chromatograph: Shimadzu GC-5 APTF with an FID; column: a glass column, 3mm i.d. and 0.5m in length, packed with 2% PEG 20M/Chromosorb W (AW, DMCS, 60_??_80 mesh); column temp.: 220°C; injection port and detector temp.: 270°C; carrier gas: N2, 80ml/min. Moreover, most of impurities in technical products of Denmert were identified by a mass spectrometer combined with GC and determined by programmed temperature GC using the same column.
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