Rapid Qualitative Or Quantitative Analysis Of Inorganic Microsubstances By A Glass Ring Oven Technique: Vi, Microdetermination Of Cadmium, Calcium, And Copper In Atmospheric Particulates.

The general and semicircular glass ring oven technique (90C) was used for separation, concentration, and determination of Cd, Ca and Cu in atmospheric particulates. Detection limits for Cd and Ca were 0.005ug; 40 min were needed to complete the determination of these metals. The precision was satisfactory, the relative standard deviation being 5%.