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

1. INTRODUCTION Since the solid spectrophotometry was first mentioned by Jiyong in 1976, the solid spectrophotometry has been widely concerned by analytical chemists because it incorporate concentration, separation and determination, has a high sensitivity (which is 10~100 times higher than that of liquid phase spectrophotometry) and has a good selectivity. In solid spectrophotometry, the resin phase spectrophotometry is used widely 1~10]. But traditional spectrophotometry need a special…