[Determination of Pb and Cd in atomospheric particulates by flame atomic absorption spectrometry coupled with on-line flow injection pretreatment with ultrasonic leaching].
In this paper, the method for extracting the metals from the filter membrane of the atomospheric particulates with ultrasonic leaching was reported. The dissolution conditions of kinds and acidity as well as the interference conditions were studied. The method of determination Pb and Cd of the atomospheric particulates by flame atomic absorption spectrometry coupled with on-line flow injection preconcentration was proved to be rapid and accuracy. The recoveries are more than 97%. The relative standard deviation of six samples are less than 2.6%.
Gao
Yan
Y
Jinan Environmental Protection Institute, Jinan 250014, China.
Wang
Dong-hai
DH
Lin
Yu-bin
YB
Li
Jian-yi
JY
Kong
Qing-zhen
QZ
D000393:Air Pollutants / Q000032:analysis*; D002104:Cadmium / Q000032:analysis*; D017022:Flow Injection Analysis / Q000379:methods; D007854:Lead / Q000032:analysis*; D010316:Particle Size; D013054:Spectrophotometry, Atomic / Q000379:methods; D014465:Ultrasonics
D000393:Air Pollutants; D002104:Cadmium; D007854:Lead