论文部分内容阅读
目的:为提高工作场所空气中有机磷检测的灵敏度与稳定性,对检测基质条件进行了优化探讨。方法:通过丙酮或者甲醇溶剂解析空气采样管样品,取一定量解析液加入优化后基质改进剂以火焰光度检测器(FPD)测定。结果:九种组分的保留时间稳定,峰形尖锐,达到完全基线分离,加标回收率在91.6%~103.6%之间,以优化后实验条件对九种组分进行检测结果满意。结论:优化后的基质改进剂有效地改善了部分极性有机磷组分的分离效果,样品检测结果的平行性和重复性较好,本实验对车间空气中有机磷的有关优化研究参数可以作为实际检测分析的参考,适用于实验室常规车间空气中有机磷检测。
OBJECTIVE: To improve the sensitivity and stability of organophosphate detection in the air of the workplace, the conditions of the detection matrix were optimized. Methods: Samples of air sampling tubes were analyzed by acetone or methanol solvent, and a certain amount of analyte was added to the optimized matrix modifier to determine by flame photometric detector (FPD). Results: The retention time of the nine components was stable, the peak shape was sharp, and the baseline was completely separated. The recoveries of the nine components ranged from 91.6% to 103.6%. Satisfactory results of the nine components were obtained with the optimized experimental conditions. Conclusion: The optimized matrix modifier can effectively improve the separation efficiency of some polar organic phosphorous components. The parallelism and repeatability of the test results are good. The optimal parameters of organophosphorus in plant air can be used as The actual detection and analysis of reference, suitable for laboratory routine workshop air organic phosphorus detection.