摘要
目的:建立微波消解-氢化物发生原子荧光光谱测定人发中总锑的方法。方法:发样经微波消解后,以抗坏血酸、硫脲为还原剂,用氢化物发生原子荧光光谱测定锑的浓度。结果:本法在锑浓度为0 ng/ml～20 ng/ml的范围具有良好的相关系数(r=0.9998),其最低检出浓度为0.096 ng/ml。应用此法对发样进行加标回收实验,加入量为5.0 ng/ml时,回收率范围为87.1%～97.5%,平均回收率92.6%;加入量为10.0ng/ml时,回收率范围为92.0%～101.2%,平均回收率96.2%。结论:该法简便快速、灵敏度高、重现性好,适用于人发中微量锑的快速测定。
Objective ： To establish a method for determination of stibium in hair by atomic fluorescence spectrometry with microwave digestion. Methods： Taking the antiscorbutic acid, the thiourea as the reducing agent, stibium in hair was determined by atomic fluorescence spectrometry after microwave digestion. Results： The method had good linearity（ r = 0. 9998 ） for the concentration of stibium from 0 to 20 ng/ml, the detection limits were 0. 096 ng/ml. The recoveries were 87.1 -97.5% with an average of 92.6% （5.0 ng/ml）, 92.0 - 101.2% with an average of 96.2% （10.0 ng/ml）. Conclusion： This method is simple and rapid with good accuracy and reproducibility. So it is suitable for the determination of stibium in hair.
出处
《中国卫生检验杂志》
北大核心
2013年第6期1378-1379,共2页
Chinese Journal of Health Laboratory Technology
关键词
原子荧光光谱
发锑
Atomic fluorescence spectrometry
Stibium in hair
