CAJ | 학술논문

目的建立工作场所空气中正戊醇的溶剂解吸气相色谱测定方法.方法采用活性炭管采集工作场所空气中正戊醇,2％异丙醇二硫化碳溶液解吸,经硝基对苯二甲酸改性的聚乙二醇(FFAP)毛细管色谱柱分离,火焰离子化检测器测定.结果该方法正戊醇检出限为0.2 mg/L,定量下限为0.6 mg/L,测定范围为0.6～4 072.0 mg/L;最低检出质量浓度为0.2 mg/m3(以采集1.5 L空气样品计);该方法重现性好,相对标准偏差为2.3％～5.4％,平均解吸效率为86.9％～94.2％,采样效率为100％,100 mg活性炭的穿透容量大于8.0 mg,样品在室温下至少可保存14d.结论该方法适用于工作场所空气中正戊醇的测定.
목적 건립공작장소공기중정무순적용제해흡기상색보측정방법.방법 채용활성탄관채집공작장소공기중정무순,2％이병순이류화탄용액해흡,경초기대분이갑산개성적취을이순(FFAP)모세관색보주분리,화염리자화검측기측정.결과 해방법정무순검출한위0.2 mg/L,정량하한위0.6 mg/L,측정범위위0.6～4 072.0 mg/L;최저검출질량농도위0.2 mg/m3(이채집1.5 L공기양품계);해방법중현성호,상대표준편차위2.3％～5.4％,평균해흡효솔위86.9％～94.2％,채양효솔위100％,100 mg활성탄적천투용량대우8.0 mg,양품재실온하지소가보존14d.결론 해방법괄용우공작장소공기중정무순적측정.
Objective To develop a solvent desorption gas chromatographic method for determination of n-pentanol in the workplace air.Methods n-Pentanol in the workplace air was collected with activated carbon tubes,desorbed with 2％ 2-propanol in carbon disulfide,separated with a nitroterephthalic acid-modified FFAP capillary column,and detected with flame ionization detector.Results The limit of detection was 0.2 mg/L;the lower limit of quantification was 0.6 mg/L;the linear range was 0.6～4072.0 mg/L.The minimum detectable mass concentration was 0.2 mg/m3 for 1.5 L of air sample.This method was highly repeatable.The relative standard deviations were 2.3％-5.4％.The average desorption efficiencies were 86.9％-94.2％.The absorption efficiencies were 100％.The breakthrough volume was above 8.0 mg in 100-mg activated carbon.The samples in activated carbon tubes could be stored for at least 14 days at room temperature.Conclusion The method is feasible for determination of n-pentanol in the workplace air.