ICP-AES Determination of 12 Heavy Metal Elements in Atmospheric Particles

ICP-AES was applied to the determination of 12 heavy metal elements in atmospheric particles. Quartz membrane filter was used to collect 12 heavy metal elements in atmospheric particles, and electrothermal plate and microwave digestions were tested for sample treatments. In case of digestion with electrothermal plate, values of detection limits found were ranged from 0.001 to 0.07 mg·L-1, lower limits of determination found were ranged from 0.004 to 0.28 mg·L-1 and RSD′s (n=6) found were in the range of 0.78%-5.8%. In case of microwave assisted digestion, values of detection limits found were ranged from 0.001 to 0.05 mg·L-1, lower limits of determination found were ranged from 0.004 to 0.20 mg·L-1 and RSD′s (n=6) found were in the range of 0.46%-4.5%. The proposed method was tested by analysis of standard samples, giving results in consistency with the certified values.