The impurities in pesticide dimethoate have been determinated by GC/ MS. The mass spectrometric characteristics of dimethoate including the fragmentation machanism and the linked scan spectra of metastable ions in FFR-1 have also been demonstrated. 本文叙述用GC/MS法测定杀虫剂乐果产品中的主要杂质,并研究了乐果的质谱特性。
Their mass spectral fragmentations were proposed on the basis of high resolution mass spectrometry and B/ E linked scan spectra. The results show that the molecular ion is relatively strong, and the characteristic peak [ ArNCO]~+ is a base peak. 根据高分辨质谱及联动扫描质谱揭示了该类化合物的质谱裂解途径,结果表明该类化合物出现较强的分子离子峰及特征的基峰[ArNCO]~+。