顶空-气相色谱质谱法测定颜料类产品中10种苯系物含量

Determination of 10 Benzene Solvents in Pigment Products by HeadspaceGas Chromatography-mass Spectrometry

采用外标法定量,建立了顶空-气相色谱质谱法测定颜料类产品中10种苯系物含量的试验方法。实验结果表明,该方法在0.3~10.0 mg/kg范围内线性良好(r^(2)>0.9995),检出限均为0.1mg/kg。按照建立的方法进行了三个不同添加量加标回收试验,回收率为92.9%~104.4%,测定值的相对标准偏差(RSD)为0.58%~5.73%(n=6)。

In this paper,a method for the determination of 10 benzene solvents in pigment products by HS-GC-MS is established.The experimental results show that the method has good linearity in the range of 0.3~10.0 mg/kg(r^(2)>0.9995),and the detection limits are all 0.1 mg/kg.According to the established method,three recovery tests are carried out.The recoveries range from 92.0%to 103.3%,and the relative standard deviation(RSD)is 0.58%~5.73%(n=6).