火焰原子吸收光谱法和ICP-AES测定工作场所空气中多种金属元素的方法比较  

Comparison of flame atomic absorption spectrometry and ICP-AES for determination of metal elements in the air of workplace

作　　者：伍剑[1] 罗霞[1] 陈杰[1] 吉华贵[1] 刘迎春[1] 黄亚婷 WU Jian;LUO Xia;CHEN Jie;JI Hua-gui;LIU Ying-chun;HUANG Ya-ting(Deyang Center for Disease Control and Prevention, Deyang, Sichuan 618400, China)

机构地区：[1]德阳市疾病预防控制中心,四川德阳618400

出　　处：《现代预防医学》2018年第12期2219-2221,2232,共4页Modern Preventive Medicine

摘　　要：目的对工作场所空气中测定铬、铜、锰、镁、钠、镍、铅和钙的火焰原子吸收光谱法和电感耦合等离子发射光谱法(ICP-AES)进行比较。方法采用硝酸高氯酸(9∶1,v/v)消化滤膜,定容至10 ml,用火焰原子吸收光谱法和电感耦合等离子发射光谱法分别测定。结果火焰原子吸收光谱法的各元素标准曲线相关系数r值>0.996,检出限≤0.033,加标回收率为95.4%~109.0%,相对标准偏差为0.36%~1.92%;电感耦合等离子发射光谱法的各元素标准曲线相关系数r值>0.998,检出限≤0.0054,加标回收率为95.9%~102.6%,相对标准偏差为0.47%~1.90%。结论 2种方法均具有良好的线性、准确度和精密度,检测结果无统计学差异。Objective To compare the methods of flame atomic absorption spectrometry（FAAS） and inductively coupled plasma atomic emission spectrometry（ICP-AES） for determination of chromium, copper, manganese, magnesium, sodium, nickel, lead and calcium in the workplace air. Methods The sample in filter was digested with nitric acid-perchloric acid（9：1,v/v）, then diluted to 10 ml, and finally determined by FAAS and ICP-AES, respectively. Results The correlation coefficients for FAAS were all 0.996, with the detection limits ≤0.033. The recovery rates of FAAS were in the range from 95.4% to 109.0%, and the relative standard deviations were in the range from 0.36% to 1.92%. The correlation coefficients of ICP-AES were all 0.998, with the detection limits ≤0.0054, and the recovery rates were in the range from 95.9% to 102.6%, and the relative standard deviations were in the range from 0.47% to 1.90%. Conclusion The two methods have good linearity, accuracy and precision. There are no significant differences between the detection results of the two methods.

关 键 词：火焰原子吸收光谱法 ICP-AES 工作场所空气 金属元素 

分 类 号：R134.2[医药卫生—劳动卫生]