Title :
Study on Determination of Trace Fe(II) in Environmental Samples by Thin Layer Resin Phase Spectrophotometry
Author :
Gao, Hang ; Li, Changhao ; Li, Songtian
Author_Institution :
Sch. of Chem. & Chem. Eng., Pingdingshan Univ., Pingdingshan, China
Abstract :
A new method for the determination of Fe(II) by thin layer resin phase spectrophotometry in alkali condition has been reported. The complex anion formed by Fe(II) and VA is absorbed on the 717# resin and Fe can be determined by making thin layer. The method has a high sensitivity (ε620 = 3.0×105 L·mol-1·cm-1), which is 15 times higher than that of liquid phase spectrophotometry. It has been proved a satisfactory precision (5.0μg Fe(II), n=6, RSD=1.8%). The trace Fe(II) in natural water has been determined, the recovery is 97%~98%.
Keywords :
chemical analysis; ion exchange; iron; resins; spectrophotometry; water; water pollution measurement; Fe; H2O; acidity; alkali condition; complex anion; environmental samples; liquid phase spectrophotometry; natural water; satisfactory precision; thin layer resin phase spectrophotometry; trace Fe(II) determination; Chemical engineering; Chemical technology; Chemistry; Instruments; Iron; Phase detection; Resins; Solids; Solvents; TV;
Conference_Titel :
Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4712-1
Electronic_ISBN :
2151-7614
DOI :
10.1109/ICBBE.2010.5518243
