【摘要】 研究了两类１９种取代硫脲类化合物的低分辨ＥＩ质谱。其主要裂解方式为噻二唑环开裂，硫代羰基裂解及中性丢失。杂原子的存在对质谱裂解有重要影响更多还原

【Abstract】 The EI mass spectra of 19 new substituted thiourea compounds were studied.Their main cleavage pattern were thiadiazole broken, carbonyl cleavage and neutral losses. The hetero atom played a very important role in the cleavage of mass spectra.更多还原