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
2期
146-148
,共3页
工作场所%空气%正丁苯%色谱法,气相
工作場所%空氣%正丁苯%色譜法,氣相
공작장소%공기%정정분%색보법,기상
Workplace%Air%N-butylbenzene%Chromatography,gas
目的 建立工作场所空气中正丁苯测定的气相色谱方法.方法 活性炭管采集工作场所空气中的正丁苯,以二硫化碳解吸后毛细管柱气相色谱法测定.结果 该方法在0～100μg/ml范围中呈线性关系,回归方程为y=0.870x-0.014,相关系数r=0.999 9;检出限为0.32 μg/ml,最低检出浓度为0.21 m咖3(采样体积以1.5 L计);平均加标回收率为97.8％～102.6％;精密度批内为3.06％,批间为3.64％;平均解吸效率为99.6％;穿透容量大于6.34 mg,;采样效率100％;样品在室温下至少可保存7d.结论 该方法各项指标均符合GBZ/T 210.4-2008《工作场所空气中化学物质测定方法》的要求,适用于工作场所空气中正丁苯的检测.
目的 建立工作場所空氣中正丁苯測定的氣相色譜方法.方法 活性炭管採集工作場所空氣中的正丁苯,以二硫化碳解吸後毛細管柱氣相色譜法測定.結果 該方法在0～100μg/ml範圍中呈線性關繫,迴歸方程為y=0.870x-0.014,相關繫數r=0.999 9;檢齣限為0.32 μg/ml,最低檢齣濃度為0.21 m咖3(採樣體積以1.5 L計);平均加標迴收率為97.8％～102.6％;精密度批內為3.06％,批間為3.64％;平均解吸效率為99.6％;穿透容量大于6.34 mg,;採樣效率100％;樣品在室溫下至少可保存7d.結論 該方法各項指標均符閤GBZ/T 210.4-2008《工作場所空氣中化學物質測定方法》的要求,適用于工作場所空氣中正丁苯的檢測.
목적 건립공작장소공기중정정분측정적기상색보방법.방법 활성탄관채집공작장소공기중적정정분,이이류화탄해흡후모세관주기상색보법측정.결과 해방법재0～100μg/ml범위중정선성관계,회귀방정위y=0.870x-0.014,상관계수r=0.999 9;검출한위0.32 μg/ml,최저검출농도위0.21 m가3(채양체적이1.5 L계);평균가표회수솔위97.8％～102.6％;정밀도비내위3.06％,비간위3.64％;평균해흡효솔위99.6％;천투용량대우6.34 mg,;채양효솔100％;양품재실온하지소가보존7d.결론 해방법각항지표균부합GBZ/T 210.4-2008《공작장소공기중화학물질측정방법》적요구,괄용우공작장소공기중정정분적검측.
Objective To establish a method for the determination of N-butylbenzene in the workplace atmosphere by gas chromatography.Methods N-butylbenzene in the workplace atmosphere was collected by activated charcoal tube,desorbed using carbon disulfide,and determined by capillary column gas chromatography.Results The method showed a linear relationship within the range of 0～100 μg/ml.The regression equation was y=0.870x-0.014,with the correlation coefficient r being 0.999 9.The limit of detection was 0.32 μg/ml.The minimum detectable concentration was 0.21 mg/m3 (with sampled air volume of 1.5 L).The average spike recovery rate was 97.8％～102.6％.The within-run precision was 3.06％ and the between-run precision was 3.64％.The rate of average desorption was 99.6％.The breakthrough volume was 6.34 mg.The sampling efficiency was 100％.The samples could be stored for at least 7 days at room temperature.Conclusion All parameters of the method meet the requirements of GBZ/T 210.4-2008 "Guide for establishing occupational health standards-Part 4 Determination methods of air chemicals in workplace" and can be applied for the determination of N-butylbenzene in workplace atmosphere.
