文档介绍：Study on Determination of Trace Fe(II) in
Environmental Samples by Thin Layer Resin Phase
Spectrophotometry
Hang Gao Changhao Li*
School of Chemistry and Chemical Engineering Department of Engineering Technology
Pingdingshan University Guangdong Radio & TV University
Pingdingshan, China Guangzhou, China
lisongtian@ lch66@
Songtian Li
School of Chemistry and Chemical Engineering
Pingdingshan University
Pingdingshan, China
lst624@
Abstract—A new method for the determination of Fe(II) by thin dimensional coordinate's selectivity, which cause the
layer resin phase spectrophotometry in alkali condition has been determination system selectivity to be high. That method can
reported. plex anion formed by Fe(II) and VA is make enrichment, separation and plete in
absorbed on the 717# resin and Fe can be determined by making one step, generally may enhance 1~2 pared to
5 -
thin layer. The method has a high sensitivity (ε620=×10 L·mol the aqueous phase luminosity law sensitivity, which is
1 -1
·cm ), which is 15 times higher than that of liquid phase especially suitable for the ponent environment water
spectrophotometry. It has been proved a satisfactory precision sample, the high pure material low content impurity and the
(µg Fe(II), n=6, RSD=%). The trace Fe(II) in natural plex ponent analysis. Thin layer resin phas