气相色谱法测定氧联吩噁吡醚胂化反应回收盐酸中的二苯醚

Gas Chromatography Determination of Diphenyl Ether Residual in Hydrochloric Acid Recovery by Arsenization of Oxyphene

研究了气相色谱法测定氧联吩噁吡醚胂化反应回收盐酸中残余的二苯醚。试样通过三氯甲烷萃取,HP-5为分析柱,氢火焰FID检测,标准曲线法定量。试验表明,二苯醚质量浓度在0~120μg/mL有良好的线性关系,相关系数r=0.9997,相对标准偏差1.67%~2.91%,加标回收率在95.0%~107.8%之间,检出限0.25μg/mL,定量限2.5μg/mL。方法精密度好,准确度高,满足检测要求。

This method studies gas chromatography to determine the residual diphenyl ether in hydrochloric acid from the arsine reaction of oxybiphene pyridine ether.The sample is extracted with chloroform,HP-5 is the analytical column,hydrogen flame FID detection,standard curve Method quantitative.The experiment shows that the diphenyl ether concentration has a good linear relationship between 0~120μg/mL,the correlation coefficient r=0.997,the relative standard deviation is 1.67%~2.91,and the recovery rate of standard addition is 95.0%~107 Between.8%,the detection limit is 0.25μg/mL,and the quantification limit is 2.5μg/mL.The method has good precision and high accuracy,and meets the detection requirements.