STUDY ON DETERMINATION OF TRACE Fe BY Fe(Ⅱ)-VA THIN LAYER RESIN PHASE SPECTROPHOTOMETRY

来源 :Chinese Journal of Reactive Polymers | 被引量 : 0次 | 上传用户:aquabluesky
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A new method for the determination of Fe by thin layer resin phase spectrophotometry in alkali condition was reported. The complex anion formed by Fe(II) and VA was absorbed on the 717# resin and Fe was determined by making thin layer. This method had a high sensitivity (ε620= 3.0×105L/mol·cm), which was 15 times higher than that of liquid phase spectrophotometry. It had been proved a satisfactory precision (5.0μg Fe, n=6, RSD=1.8%). The trace Fe in natural water was determined and the recovery was 97%. A new method for the determination of Fe by thin layer resin phase spectrophotometry in alkali condition was reported. The complex anion formed by Fe (II) and VA was absorbed on the 717 # resin and Fe was determined by making thin layer. which had 15 times higher than that of liquid phase spectrophotometry. It had been proved a satisfactory precision (5.0 μg Fe, n = 6, RSD = 1.8%). The high sensitivity (ε620 = 3.0 × 10 5 L / mol · cm) trace Fe in natural water was determined and the recovery was 97%.
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