广州化学
廣州化學
엄주화학
GUANGZHOU CHEMISTRY
2011年
3期
7-12
,共6页
廖平德%滕云梅%白海强%吕保玉%许桂苹
廖平德%滕雲梅%白海彊%呂保玉%許桂蘋
료평덕%등운매%백해강%려보옥%허계평
加速溶剂萃取%酞酸酯类有机物%土壤%样品前处理%气相色谱―质谱
加速溶劑萃取%酞痠酯類有機物%土壤%樣品前處理%氣相色譜―質譜
가속용제췌취%태산지류유궤물%토양%양품전처리%기상색보―질보
accelerated solvent extraction%phthalates%soil%pretreatment of sample%gas chromatography-mass spectrometry
建立了土壤中酞酸酯类的加速溶剂萃取(ASE)―气相色谱―质谱(GC-MS)测定方法。通过对萃取溶剂和层析柱的优化选择,得出优化萃取条件。同时,实验过程中采用铬酸洗液对实验器皿进行清洗,有效控制了环境中酞酸酯对样品的污染。该优化方法结果显示:平均加标回收率为89.5%~106.0%,相对标准偏差为1.5%~5.8%,检出限为0.01~0.09 ng/g。方法具有空白低、回收率高、纯化效果好、灵敏度高的特点,具有很好的应用价值。
建立瞭土壤中酞痠酯類的加速溶劑萃取(ASE)―氣相色譜―質譜(GC-MS)測定方法。通過對萃取溶劑和層析柱的優化選擇,得齣優化萃取條件。同時,實驗過程中採用鉻痠洗液對實驗器皿進行清洗,有效控製瞭環境中酞痠酯對樣品的汙染。該優化方法結果顯示:平均加標迴收率為89.5%~106.0%,相對標準偏差為1.5%~5.8%,檢齣限為0.01~0.09 ng/g。方法具有空白低、迴收率高、純化效果好、靈敏度高的特點,具有很好的應用價值。
건립료토양중태산지류적가속용제췌취(ASE)―기상색보―질보(GC-MS)측정방법。통과대췌취용제화층석주적우화선택,득출우화췌취조건。동시,실험과정중채용락산세액대실험기명진행청세,유효공제료배경중태산지대양품적오염。해우화방법결과현시:평균가표회수솔위89.5%~106.0%,상대표준편차위1.5%~5.8%,검출한위0.01~0.09 ng/g。방법구유공백저、회수솔고、순화효과호、령민도고적특점,구유흔호적응용개치。
A method for the determination of phthalates in soil has been established by accelerated solvent extraction(ASE) coupled with gas chromatography-mass spectrometry(GC/MS).The optimal conditions were determined by selecting the best solvent and chromatography column.Meanwhile,the disturbance of phthalates in natural environment has been controlled effectively by washing experimental vessels with chromium acid.The result demonstrated the recoveries of the six phthalates were between 89.5% and 106.0%.The relative standard deviations were between 1.5% and 5.8%.The detect limits were between 0.01 ng/g and 0.09 ng/g.The method has the characters of low blank,high recovery,good purification,sensitive and a high application value.