CAJ | 학술논문

研究了提取溶剂效率、净化方式等因素对十氯酮测定的影响,对比了加速溶剂提取、微波萃取及超声波等提取方式,考察了不同电子轰击能量、碰撞能量下特征离子对的响应。建立了加速溶剂萃取,H2 SO4净化分离,气相色谱法-三重四极杆质谱法测定土壤中十氯酮的分析方法。取5.0 g土壤干样,内标法定量,线性相关系数为0.9997,加标回收率为91.7％~121％,相对标准偏差为3.4％(n＝6),检出限为0.1 ng/kg。
연구료제취용제효솔、정화방식등인소대십록동측정적영향,대비료가속용제제취、미파췌취급초성파등제취방식,고찰료불동전자굉격능량、팽당능량하특정리자대적향응。건립료가속용제췌취,H2 SO4정화분리,기상색보법-삼중사겁간질보법측정토양중십록동적분석방법。취5.0 g토양간양,내표법정량,선성상관계수위0.9997,가표회수솔위91.7％~121％,상대표준편차위3.4％(n＝6),검출한위0.1 ng/kg。
An analytical method to determine the concentration of Kepone in marine soil using gas chromatography-tandem mass spectrometry was developed. Several factors that may influence the analysis accuracy of Kepone in marine soil were investigated, such as extraction efficiency of different solvents and cleanup conditions. The efficiency of accelerated solvent extraction method, microwave extraction and ultrasonic extraction method was compared,and the effects of the response of the characteristics ion was investigated employing different energy electron bombardment and collision energies. The analytical method was developed by employing chromatography-tandem mass spectrometry under the condition of microwave extraction and cleanup with H2 SO4 . The dry soil samples (5. 0 g) were extracted by the microwave extraction with the mixture of dichlormethane/acetone (1∶1,V/V),the extracts were concentrated and cleaned up with H2 SO4 . Then the correlation coefficient was 0. 9997,the average recoveries were between 91. 7% and 121% with the relative standard deviation between 3. 4% ( n =6 ) . The method detection limit was 0. 1 ng/kg.