西部皮革
西部皮革
서부피혁
WEST LEATHER
2015年
8期
37-43
,共7页
有机磷农药%分子筛脱水%自动固相萃取%气相色谱/质谱%水
有機燐農藥%分子篩脫水%自動固相萃取%氣相色譜/質譜%水
유궤린농약%분자사탈수%자동고상췌취%기상색보/질보%수
organophosphorous pesticides%molecular sieve dehydration%automated solid Phase extraction%gas chromatography/Mass spectrometry%water
院建立了气相色谱质谱联用法测定水中有机磷农药残留的方法，样品用全自动固相萃取分子筛脱水进行预处理，对固相萃取盘的类型进行了比选，试验了萃取盘的穿透性，优化了萃取条件，用丙酮和甲基叔丁基醚（MTBE）作萃取剂，用DVB萃取盘进行萃取。方法相关系数（r2）为0.9930~0.9991，检出限为0.000006~0.000018 mg/L，方法用于饮用水、工业废水和生污水中有机磷农药的测定，对高、中、低浓度的样品进行加标回收测定（n=6），精密度为2.7%~16.7%，平均加标回收率为71.7%~101.2%。方法具有良好精密度、准确度和灵敏度，前处理方法简单快速，环境友好。
院建立瞭氣相色譜質譜聯用法測定水中有機燐農藥殘留的方法，樣品用全自動固相萃取分子篩脫水進行預處理，對固相萃取盤的類型進行瞭比選，試驗瞭萃取盤的穿透性，優化瞭萃取條件，用丙酮和甲基叔丁基醚（MTBE）作萃取劑，用DVB萃取盤進行萃取。方法相關繫數（r2）為0.9930~0.9991，檢齣限為0.000006~0.000018 mg/L，方法用于飲用水、工業廢水和生汙水中有機燐農藥的測定，對高、中、低濃度的樣品進行加標迴收測定（n=6），精密度為2.7%~16.7%，平均加標迴收率為71.7%~101.2%。方法具有良好精密度、準確度和靈敏度，前處理方法簡單快速，環境友好。
원건립료기상색보질보련용법측정수중유궤린농약잔류적방법，양품용전자동고상췌취분자사탈수진행예처리，대고상췌취반적류형진행료비선，시험료췌취반적천투성，우화료췌취조건，용병동화갑기숙정기미（MTBE）작췌취제，용DVB췌취반진행췌취。방법상관계수（r2）위0.9930~0.9991，검출한위0.000006~0.000018 mg/L，방법용우음용수、공업폐수화생오수중유궤린농약적측정，대고、중、저농도적양품진행가표회수측정（n=6），정밀도위2.7%~16.7%，평균가표회수솔위71.7%~101.2%。방법구유량호정밀도、준학도화령민도，전처리방법간단쾌속，배경우호。
Automated solid phase extraction and molecular sieve dehydration coupled with gas chromatog-raphy/mass spectrometry (GC/MS) was used to determine the residues of organophosphorous pesticides in water samples.The extraction disk penetrating was tested and the extraction condition was optimized. Using acetone and methyl tert-butyl ether (MTBE)as the eluen and DVB disk as the extraction disk, the pro-posed method has been successfully applied for the determination of organophosphorous pesticides residues in drinking water, industrial wastewater and raw sewage with satisfactory results for its sensitivity, precision and repeatability. The average recoveries were between 71.7%-101.2% with RSD of 2.7%-16.7%(n=6). The limits of detection was between 0.000006~0.000018 mg/L.
