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
2011年
8期
629-631
,共3页
杨金萍%张露新%刘彤%刘黛莉%侯玉更%冯宏涛
楊金萍%張露新%劉彤%劉黛莉%侯玉更%馮宏濤
양금평%장로신%류동%류대리%후옥경%풍굉도
1,1-二氯-1-硝基乙烷%空气%色谱法,气相
1,1-二氯-1-硝基乙烷%空氣%色譜法,氣相
1,1-이록-1-초기을완%공기%색보법,기상
1,1-dichloro- 1-nitroethane%Air%Gas Chromatography
目的 建立工作场所空气中1,1-二氯-1-硝基乙烷的气相色谱测定方法.方法 活性炭管采集工作场所空气中的1,1-二氯-1-硝基乙烷,以二硫化碳解吸后毛细管柱气相色谱法测定.结果 方法的测定范围为4.0～858.2μg/ml;回归方程Y=283X-1076,相关系数r=0.9999;最低检出浓度为0.4 mg/m3(以采集3L空气样品计);不同浓度测定的相对标准偏差(RSD)为1.8%～4.1%(批内精密度试验的RSD分别为2.9%、1.8%和2.0%;批间精密度试验的RSD分别为4.1%、3.5%和3.2%);解吸效率为88.5%～90.6%;穿透容量大于0.7 mg;采样效率100%;样品在室温下至少可保存7 d.结论 方法的各项指标均符合GBZ/T210.4-2008<职业卫生标准制订指南-工作场所空气中化学物质测定方法>要求,可用于工作场所空气中1,1-二氯-1-硝基乙烷的测定.
目的 建立工作場所空氣中1,1-二氯-1-硝基乙烷的氣相色譜測定方法.方法 活性炭管採集工作場所空氣中的1,1-二氯-1-硝基乙烷,以二硫化碳解吸後毛細管柱氣相色譜法測定.結果 方法的測定範圍為4.0～858.2μg/ml;迴歸方程Y=283X-1076,相關繫數r=0.9999;最低檢齣濃度為0.4 mg/m3(以採集3L空氣樣品計);不同濃度測定的相對標準偏差(RSD)為1.8%～4.1%(批內精密度試驗的RSD分彆為2.9%、1.8%和2.0%;批間精密度試驗的RSD分彆為4.1%、3.5%和3.2%);解吸效率為88.5%～90.6%;穿透容量大于0.7 mg;採樣效率100%;樣品在室溫下至少可保存7 d.結論 方法的各項指標均符閤GBZ/T210.4-2008<職業衛生標準製訂指南-工作場所空氣中化學物質測定方法>要求,可用于工作場所空氣中1,1-二氯-1-硝基乙烷的測定.
목적 건립공작장소공기중1,1-이록-1-초기을완적기상색보측정방법.방법 활성탄관채집공작장소공기중적1,1-이록-1-초기을완,이이류화탄해흡후모세관주기상색보법측정.결과 방법적측정범위위4.0～858.2μg/ml;회귀방정Y=283X-1076,상관계수r=0.9999;최저검출농도위0.4 mg/m3(이채집3L공기양품계);불동농도측정적상대표준편차(RSD)위1.8%～4.1%(비내정밀도시험적RSD분별위2.9%、1.8%화2.0%;비간정밀도시험적RSD분별위4.1%、3.5%화3.2%);해흡효솔위88.5%～90.6%;천투용량대우0.7 mg;채양효솔100%;양품재실온하지소가보존7 d.결론 방법적각항지표균부합GBZ/T210.4-2008<직업위생표준제정지남-공작장소공기중화학물질측정방법>요구,가용우공작장소공기중1,1-이록-1-초기을완적측정.
Objective To establish a gas chromatography method for detecting the concentration of 1,1-dichloro-1-nitroethane in air of workplaces.Method 1,1-dichloro-1-nitroethane in air of workplaces was collected by activated charcoal tube, absorbed using carbon disulfide and analyzed by Gas Chromatography (FID)with FFAP capillary column.Results The linear rang of 1,1-dichloro-1-nitroethane in this method was 4.0～858.2 μg/ml, the liuear regression formula was Y=283X-1076, the correlation coefficient was 0.9999, the lowest detection concentration was 0.4 mg/m3 (31 sampling air), the relative standard deviation (RSD) was1.8%～4.1%, the desorption efficiency was 88.5%～90.6%, the breakthrough volume was ＞0.7 mg, the sampling efficiency was 100%, the samples could be kept at ambient temperature for at least 7 days.Conclusion The indicators of this method were conformed to the requirements of "Guide for establishing occupational health standards-Determination methods of air chemicals in workplace".This method could be used to detect 1,1-dichloro1-nitroethane in air of workplaces.
