Determination of Indium and compounds in workplace air by ICP-AES

  Objective  To estabish a method of microware dissolution and ICP-AES for determianation of Indium and compounds in workplace air.

  Methods  This method was based on "standardization of methods for determination of to xic substance in workplace air".

  Results  Range of Indium curve were 0.1~50 μg/mL. Detection limit was 0.02 μg/mL, Precision (RSD) were 0.76%~1.89% for Indium concentration of 3.0 μg/mL and 5.0 μg/mL.Recoveries of spiked samples were in the range of 97.0 %~109.0 %.Average collectio nefficiencies was 98.6 %.

  Conclusion  The method meets the requirement of "Standardization of methods for determination of to xic substances in workplace air".It is suitable for determination of Indium and compounds in workplace air.