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
2期
144-145
,共2页
色谱法,离子交换%磷酸类%工作场所
色譜法,離子交換%燐痠類%工作場所
색보법,리자교환%린산류%공작장소
Chromatography,ion exchange%Phosphoric acids%Workplace
目的 建立工作场所空气中磷酸的离子色谱测定法.方法 空气中磷酸经微孔滤膜采集后,用去离子水洗脱,经色谱柱分离,电导检测器检测,用离子色谱法进行分离测定,保留时间定性,峰高或峰面积定量.结果 方法 线性范围为0～20 μg/ml,相对标准偏差(RSD)为1.95%～3.31%,洗脱效率为103.0%～109.6%,最低检出限为0.1 μg/ml(进样量20.0μl),若采集75 L空气进行测定,最低检出浓度为0.01 mg/m3.结论 该方法 采样方便,样品处理简单,灵敏度高,可靠性好,试验过程不需化学试剂,对环境无污染,可用于工作场所空气中磷酸的检测.
目的 建立工作場所空氣中燐痠的離子色譜測定法.方法 空氣中燐痠經微孔濾膜採集後,用去離子水洗脫,經色譜柱分離,電導檢測器檢測,用離子色譜法進行分離測定,保留時間定性,峰高或峰麵積定量.結果 方法 線性範圍為0～20 μg/ml,相對標準偏差(RSD)為1.95%～3.31%,洗脫效率為103.0%～109.6%,最低檢齣限為0.1 μg/ml(進樣量20.0μl),若採集75 L空氣進行測定,最低檢齣濃度為0.01 mg/m3.結論 該方法 採樣方便,樣品處理簡單,靈敏度高,可靠性好,試驗過程不需化學試劑,對環境無汙染,可用于工作場所空氣中燐痠的檢測.
목적 건립공작장소공기중린산적리자색보측정법.방법 공기중린산경미공려막채집후,용거리자수세탈,경색보주분리,전도검측기검측,용리자색보법진행분리측정,보류시간정성,봉고혹봉면적정량.결과 방법 선성범위위0～20 μg/ml,상대표준편차(RSD)위1.95%～3.31%,세탈효솔위103.0%～109.6%,최저검출한위0.1 μg/ml(진양량20.0μl),약채집75 L공기진행측정,최저검출농도위0.01 mg/m3.결론 해방법 채양방편,양품처리간단,령민도고,가고성호,시험과정불수화학시제,대배경무오염,가용우공작장소공기중린산적검측.
Objective To develop a method to determin phosphoric acid in the air of workplace by ion chromatography. Methods Phosphoric acid was collected by millipore filter and washed by deionized water then detected by ion chromatography. Results Linearity range of test was 0～20 μg/ml, relelive standard deviation (RSD) was 1.95%～3.31%, the elution efficiency was 103.0%～ 109.6%, determination limit was 0.1 μg/ml (when sample size was 20.01 ), concentration limit was 0.01 mg/m3(when the collected air was 75 L).Conclusion This method is convenient for air collection, simple, with high sensitivity and good precision, is a good method for determination of phosphoric acid in the air of workplace.
