福建水产
福建水產
복건수산
JOURNAL OF FUJIAN FISHERIES
2012年
1期
48-53
,共6页
叶玫%姜琳琳%余颖%母玉敏
葉玫%薑琳琳%餘穎%母玉敏
협매%강림림%여영%모옥민
拟除虫菊酯%残留%气相色谱法%渔业水质
擬除蟲菊酯%殘留%氣相色譜法%漁業水質
의제충국지%잔류%기상색보법%어업수질
pyrethroids%residue%gas chromatography%fishery water
建立渔业水质中七氟菊酯、联苯菊酯、甲氰菊酯、三氟氯氰菊酯、氯菊酯、氟氯氰菊酯、氯氰菊酯、氰戊菊酯、氟胺氰菊酯、溴氰菊酯10种拟除虫菊酯残留的分析方法。样品以石油醚萃取、无水硫酸钠脱水、减压浓缩后用气相色谱-电子捕获检测器(GC-ECD)测定。七氟菊酯在2.5~100ng/mL、其它9种菊酯在5~200ng/mL内线性关系良好(r≥0.9954);0.05μg/L、0.5μg/L、1μg/L添加浓度水平的回收率在73.8%~100.2%之间,相对标准偏差(RSD)为2.53%~10.3%;检出限(LOD)为0.125~2.5ng/L,最低定量限(LOQ)为0.025~0.05μg/L。该方法简单快速、准确可靠,能满足渔业水质拟除虫菊酯污染的检测要求。
建立漁業水質中七氟菊酯、聯苯菊酯、甲氰菊酯、三氟氯氰菊酯、氯菊酯、氟氯氰菊酯、氯氰菊酯、氰戊菊酯、氟胺氰菊酯、溴氰菊酯10種擬除蟲菊酯殘留的分析方法。樣品以石油醚萃取、無水硫痠鈉脫水、減壓濃縮後用氣相色譜-電子捕穫檢測器(GC-ECD)測定。七氟菊酯在2.5~100ng/mL、其它9種菊酯在5~200ng/mL內線性關繫良好(r≥0.9954);0.05μg/L、0.5μg/L、1μg/L添加濃度水平的迴收率在73.8%~100.2%之間,相對標準偏差(RSD)為2.53%~10.3%;檢齣限(LOD)為0.125~2.5ng/L,最低定量限(LOQ)為0.025~0.05μg/L。該方法簡單快速、準確可靠,能滿足漁業水質擬除蟲菊酯汙染的檢測要求。
건립어업수질중칠불국지、련분국지、갑청국지、삼불록청국지、록국지、불록청국지、록청국지、청무국지、불알청국지、추청국지10충의제충국지잔류적분석방법。양품이석유미췌취、무수류산납탈수、감압농축후용기상색보-전자포획검측기(GC-ECD)측정。칠불국지재2.5~100ng/mL、기타9충국지재5~200ng/mL내선성관계량호(r≥0.9954);0.05μg/L、0.5μg/L、1μg/L첨가농도수평적회수솔재73.8%~100.2%지간,상대표준편차(RSD)위2.53%~10.3%;검출한(LOD)위0.125~2.5ng/L,최저정량한(LOQ)위0.025~0.05μg/L。해방법간단쾌속、준학가고,능만족어업수질의제충국지오염적검측요구。
A method for determining tefluthrin,bifenthrin,fenpropathrin,cyhalothrin,permethrin,cyfluthrin,cypermethrin,fenvalerate,tau-fluvalinate,deltamethrin residues in fishery water was developed.The pyrethroids were extracted by petroleum ether,dehydrated by anhydrous sodium sulfate,concentrated and then analyzed by gas chromatography with electron capture detector(GC-ECD).The linear range of tefluthrin was 2.5~100ng/mL and the other nine were 5~200ng/mL(r≥0.9954).When spiked with 0.05μg/L,0.5μg/L,1μg/L,the average recoveries ranged from 73.8% to 100.2% and their relative standard deviations(RSD)were between 2.53% and 10.3%.The limits of detection(LOD) and limits of quantitation(LOQ) for all pyrethroids were in the range from 0.125~2.5ng/L and 0.025~0.05μg/L separately.This method is simple,reliable and can be applied in the detection of pyrethroid in fishery water.