CAJ | 학술논문

样品采用液液分配经甲醇提取,提取液经浓缩定容后,用液相色谱-质谱/质谱仪采用多反应监测(MRM)进行检测.通过PFOS类物质共有的特征离子作为检测目标离子进行定性,外标法测定PFOS类物质的总含量.PFOS标液在0.01～1.0 μg/mL范围内浓度与响应值有良好的线性关系.方法的检测低限是0.01 mg/kg,回收率为76.5%～110.0%,相对标准偏差为5.69%～15.75%.
양품채용액액분배경갑순제취,제취액경농축정용후,용액상색보-질보/질보의채용다반응감측(MRM)진행검측.통과PFOS류물질공유적특정리자작위검측목표리자진행정성,외표법측정PFOS류물질적총함량.PFOS표액재0.01～1.0 μg/mL범위내농도여향응치유량호적선성관계.방법적검측저한시0.01 mg/kg,회수솔위76.5%～110.0%,상대표준편차위5.69%～15.75%.
The test sample was extracted by liquid-liquid partition with methanol,and the extract was concentrated and diluted to a fixed volume suitable for the measurement using the multiple reaction monitoring (MRM) mode by LC-MS-MS.The featured ions of PFOS were scanned as tested targets with the external standard for qualifying PFOS and quantify the total content of PFOS.The PFOS standard solution showed a linear relationship to the response value at a concentration range of 0.01～1.0 μg/mL.The detection limit of this method was 0.01 mg/kg,the recovery ranges were 76.5%～110.0%,and the relative standard deviation was in the range of 5.69%～15.75%.