Study on the adsorption behavior of Chrome and Manganese on potassium tetratitanate whisker

摘要

A new method for the separation and preconcentration of Chrome and Manganese using potassium titrationate whisker was developed prior to the determination by FAAS. The influences of analytical parameters including amount of sorbent, the adsorption capacity, the coexistence ion influence and the adsorption behavior were also studied by the flame atomic absorption spectrometry, the effects of concomitant ions were also examined. The detection limits (3s) were 15 ng·mL~(-1) and 44 ng·ML~(-1). The method was applied to the determination of analytes in real samples, such as tea and environmental samples, etc. and good results were obtained (relative standard deviations ＜4.1%, recoveries ＞93%).