工作场所空气中锡的氢化物发生-原子荧光光谱测定法  

Determination of Tin in the air by hydride generation-atomic fluorescence spectrometry

作　　者：陈峰[1] 谢超[1] 

机构地区：[1]江苏省南通市疾病预防控制中心理化检验科,226007

出　　处：《职业与健康》2012年第6期684-685,687,共3页Occupation and Health

摘　　要：目的研究氢化物发生-原子荧光光谱法测定工作场所空气中的锡。方法电热板消化采样滤膜,选择用王水做消化液消解,选择适宜的仪器工作条件进行检测。结果在0～100μg/L线性范围内,相关系数为0.999 7,不同浓度标准溶液的相对标准偏差在0.82%～3.87%之间,加标回收率在98.0%～102.7%之间,方法检出限为0.090μg/ml。结论氢化物发生-原子荧光光谱法具有灵敏度高、干扰少、选择性好、准确度高等优点,而用王水做消化液适用于各种作业场所中锡的测定。[Objective]To study the method for determination of tin in workplace air by hydride generation-atomic fluorescence spectrometry.[Methods]The electric hot plate was chosen to digest membrane,with aqua regia as digestive juice.Appropriate instrument conditions were chosen for detection.[Results]The calibration curve was linear in the range of 0-100 μg/L（R=0.999 7）.The RSD of standard solution with different concentration was 0.82%-3.87 %,the recoveries were 98.0%-102.7%,and the detection limit was 0.090 μg/ml.[Conclusion]Hydride generation-atomic fluorescence spectrometry has characteristics of high sensitivity,less interference,selectivity,accuracy,etc.And to do it with aqua regia digestion are appropriate fordetermination of tin in various workplaces.

关 键 词：空气 锡 工作场所 火焰原子吸收 

分 类 号：R122.1[医药卫生—环境卫生学]