【摘要】 用气相色谱对不同介质中有机磷标准溶液的稳定性进行了研究。用HP-1毛细管柱对敌敌畏、马拉硫磷、对硫磷和甲基对硫磷进行分离,氮磷检测器检测,考查了四种有机磷标准在甲醇、丙酮和氯仿中的稳定性。试验表明,用丙酮和氯仿为介质的有机磷标准溶液稳定性较好,在考查的浓度范围内浓度和相应的峰高线性响应良好,相关系数均〉0.997,而甲醇作为介质对有机磷的稳定性有一定的影响,对敌敌畏和马拉硫磷的影响最大,在同样的浓度范围内几乎不成线性,稀释倍数越大影响越大。更多还原

【Abstract】 The stability of organophosphorous standard solution was studied.The organophosphorous compounds were separated through HP-1 capillary column(30m× 0.53mm i.d.× 2.65μm) and determined by GC-NPD.We detected compounds in acetone 、trichloromethane and methanol respectively.The result showed that low level organophosphorous in acetone and trichloromethane were more stable than in methanol.更多还原