|
K. V. Oskolok, O. V. Monogarova, N. V. Alov
TXRF
determination of mercury(II) in water in combination with liquid-liquid
microextraction
Abstract
The hybrid highly selective way of TXRF determination of mercury(II) in
drinking water at the level of n.(10-2–100)
µg/l is developed. The technique of preconcentration of mercury(II) ions
includes directly-suspended droplet microextraction with benzene in the form of
iodide molecular complex. The proposed method of determination is characterized
by high sensitivity and reproducibility (cmin = 8 ng/l, sr
= 0,12 (100 ng/l)). The accuracy of analysis results is confirmed by method
"introduced-found".
Key words: total-reflection X-ray fluorescence analysis,
directly-suspended droplet microextraction, mercury(II), drinking water.
Copyright (C) Chemistry Dept., Moscow State University, 2002
|
|
