Clean Environment for Ultratrace Analysis Morris Zief* and Alexander G. Nesher’
Research Laboratories, J. T. Baker Chemical C o . , Phillipsburg, N.J. 08865
The inability to control ambient air blanks at levels insignificant in comparison with the constituent being determined severely restricts accuracy and precision of ultratrace metal determinations. Techniques are presented for upgrading a laboratory to control contamination from particulates in air. The importance of humidity control in eliminating electrostatic charges is discussed.
Determinations of trace (1-100 M g / g ) and ultratrace (
