摘要
目的比较电感离合等离子体质谱(ICP-MS)法和栎精分光光度法测定工作场所空气中二氧化锡的优缺点,以提高检验效率和质量。方法从方法前处理方式、线性范围、检出限、精密度、准确度、实际样品测定等几个方面对2种方法进行比较。结果分光光度法前处理时间为四五个小时,线性范围为150～3 000μg/L,检出限为150μg/L,精密度为0.4%～1.1%,准确度为95%～97%;ICP-MS法前处理时间为0.5～1.0 h,线性范围为1～100μg/L,检出限为0.10μg/L,精密度为0.6%～1.4%,准确度为99%;2种方法均能有效测定工作场所空气中二氧化锡。结论与栎精分光光度法相比,ICP-MS法前处理时间短,线性范围下限与检出限低,精密度与准确度相仿,且适用于低浓度样品检测,可较大地提高检验效率和质量。
[ Objective ] To compare the advantages and disadvantages？ between inductively coupled plasma mass spectrometry （ICP-MS） and quercetin spectrophotometry in determination of tin dioxide in workplace air. [ Methods ] Two methods were com- pared in the pretreatment method, linearity range, detection limit, precision, accuracy, determination of actual samples. [ Results ] For the spectrophotometry, the pretreatment time was 4-5 hours, the linearity range was 150-3 000 μg/L, the detection limit was 150μg/L, the precision was 0.4%-1.1%, and the accuracy was 95%-97%. For ICP-MS method, the pretreatment time was 0.5 -1.0 hour, the linearity range was 1-100μg/L, the detection limit was 0.10μg/L, the precision was 0.6% -1.4%, and the accuracy was 99%. Both two methods can effectively determine the concentration of tin dioxide in workplace air. [ Conclusion] Compared with the quercetin spectrophotometry, ICP-MS method can greatly shorten the pretreatment time, has lower linearity range and detection limit, has the same precision and accuracy, and is suitable for low concentration samples, which can greatly improve the efficiency and quality of detection work.
出处
《职业与健康》
CAS
2013年第15期1892-1893,1896,共3页
Occupation and Health
关键词
电感耦合等离子体质谱
分光光度法
二氧化锡
工作场所空气
Inductively coupled plasma mass spectrometry(ICP-MS)
Spectrophotometry
Tin dioxode
Workplace air
