中华劳动卫生职业病杂志
中華勞動衛生職業病雜誌
중화노동위생직업병잡지
CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES
2015年
4期
307-309
,共3页
王翔%赵忠林%仇建国%郭盈%吴江
王翔%趙忠林%仇建國%郭盈%吳江
왕상%조충림%구건국%곽영%오강
GC-ECD%环氧氯丙烷%工作场所
GC-ECD%環氧氯丙烷%工作場所
GC-ECD%배양록병완%공작장소
Gas chromatograph-electron capture detector%,Epichlorohydrin%Workplace
目的 建立气相色谱-电子捕获检测器(GC-ECD)法测定工作场所空气中环氧氯丙烷的方法.方法 工作场所空气中环氧氯丙烷经活性炭管采集,丙酮解吸后,GC-ECD法测定.结果 环氧氯丙烷在1.0～50 μg/ml范围内线性良好,r=0.999 7,方法检出限为0.012 μg/ml,回收率为88.1％,精密度在1.11％～3.57％之间,样品在室温下可至少保存7d.结论 该方法有效去除共存烷烃类对环氧氯丙烷测定的干扰,灵敏度提高1或2个数量级,可解决GBZ/T 160.58-2004中“检出即超标”的问题.
目的 建立氣相色譜-電子捕穫檢測器(GC-ECD)法測定工作場所空氣中環氧氯丙烷的方法.方法 工作場所空氣中環氧氯丙烷經活性炭管採集,丙酮解吸後,GC-ECD法測定.結果 環氧氯丙烷在1.0～50 μg/ml範圍內線性良好,r=0.999 7,方法檢齣限為0.012 μg/ml,迴收率為88.1％,精密度在1.11％～3.57％之間,樣品在室溫下可至少保存7d.結論 該方法有效去除共存烷烴類對環氧氯丙烷測定的榦擾,靈敏度提高1或2箇數量級,可解決GBZ/T 160.58-2004中“檢齣即超標”的問題.
목적 건립기상색보-전자포획검측기(GC-ECD)법측정공작장소공기중배양록병완적방법.방법 공작장소공기중배양록병완경활성탄관채집,병동해흡후,GC-ECD법측정.결과 배양록병완재1.0～50 μg/ml범위내선성량호,r=0.999 7,방법검출한위0.012 μg/ml,회수솔위88.1％,정밀도재1.11％～3.57％지간,양품재실온하가지소보존7d.결론 해방법유효거제공존완경류대배양록병완측정적간우,령민도제고1혹2개수량급,가해결GBZ/T 160.58-2004중“검출즉초표”적문제.
Objective To develop a method for determining epichlorohydrin in the workplace air by gas chromatograph-electron capture detector (GC-ECD).Methods Epichlorohydrin in the workplace air was collected by activated charcoal tubes,desorbed using acetone,and analyzed by GC-ECD.Results A good linearity was obtained in the range of 1.0～50 μg/mL (r=0.999 7).The detection limit was 0.012 μg/ml,while the recovery rate was 88.1％ and relative standard deviation ranged from 1.11％ to 3.57％.The samples could be stored for seven days at room temperature.Conclusion This method effectively eliminates the interferences of alkanes on determination of epichlorohydrin and improves the sensitivity by 1 to 2 orders of magnitude,which can solve the problem of detection limit above standard in GBZ/T 160.58-2004.
