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
2012年
2期
137-139
,共3页
氨%离子色谱法%空气%工作场所
氨%離子色譜法%空氣%工作場所
안%리자색보법%공기%공작장소
Ammonia%Ion chromatography%Air%workplace
目的 建立硅胶管采集离子色谱测定工作场所空气中氨的方法.方法 工作场所空气中氨用硅胶管采样,经甲基磺酸溶液超声解吸10 min后,利用离子色谱法检测.结果 方法线性范围为0.02～1.00 μg/ml,回归方程为(Y)=12 041X-187(r=0.999 7),最低检出浓度0.13 mg/m3(以采集1.5 L空气计).采样效率100％,平均解吸效率为99％,相对标准偏差为4.2％～6.3％,穿透容量大于264μg.样品于室温下至少可保存14d.结论 该方法方便实用,灵敏度高,适用于工作场所空气中氨的测定.
目的 建立硅膠管採集離子色譜測定工作場所空氣中氨的方法.方法 工作場所空氣中氨用硅膠管採樣,經甲基磺痠溶液超聲解吸10 min後,利用離子色譜法檢測.結果 方法線性範圍為0.02～1.00 μg/ml,迴歸方程為(Y)=12 041X-187(r=0.999 7),最低檢齣濃度0.13 mg/m3(以採集1.5 L空氣計).採樣效率100％,平均解吸效率為99％,相對標準偏差為4.2％～6.3％,穿透容量大于264μg.樣品于室溫下至少可保存14d.結論 該方法方便實用,靈敏度高,適用于工作場所空氣中氨的測定.
목적 건립규효관채집리자색보측정공작장소공기중안적방법.방법 공작장소공기중안용규효관채양,경갑기광산용액초성해흡10 min후,이용리자색보법검측.결과 방법선성범위위0.02～1.00 μg/ml,회귀방정위(Y)=12 041X-187(r=0.999 7),최저검출농도0.13 mg/m3(이채집1.5 L공기계).채양효솔100％,평균해흡효솔위99％,상대표준편차위4.2％～6.3％,천투용량대우264μg.양품우실온하지소가보존14d.결론 해방법방편실용,령민도고,괄용우공작장소공기중안적측정.
Objective To establish an ion chromatography (IC) method for determination of ammonia in air of workplace.Methods Ammonia in workplace air was collected in silica gel tube,desorbed with 10 mmol/L methanesulfonic acid by ultrasonic for 10 min,determined by IC.Results The linearity range was 0.02～1.00 μg/ml.The linear equation was (Y)=12 041X-187 (r=0.999 7).The limit of quantification was 0.13 mg/m3 (the air volume was 1.5 L).Collection efficiency was 100％.Extraction efficiency was 99％.The relative standard deviation was 4.2％～6.3％.The penetration capacity was more than 264 μg.Sample could be stored for 14 days at least by ambient storage.Conclusion This method is convenient,applicable and sensitive,suitable to determinate ammonia in air of workplace.
