PF和吐温-80分光光度法测定铝的研究与应用

Study and Application of Aluminium Determination by Spectrophotometry of PF and Tween-80

本文研究了氨性缓冲溶液中，在吐温-80存在下，铝与苯基荧光酮（PF）的显色反应。配合物的最大吸收波长为556nm，表观摩尔吸光系数为1．2×105L·mol－1·cm－1，有色配合物配合比为Al：PF＝1：2，铝量在0—5μum／25mL范围内符合比耳定律。方法具有较高的灵敏度，操作简便，迅速，测定水中微量铝，结果满意。

In the ammonincal buffer solution, the colour reaction of aluminium with phenylfluorone (PF) in the presence of Tween-80 has beed developed The complex exhibits absorption maximum at 556nm with apparent mofor absorption coefficient of 1.2×105L. mol-1. cm-1 The molar ratio of alumini um to PF is 1: 2 Beer's law is obeyed in the range of 0- 5 μg/25mL for aluminium' The method is characterbod by Sood sensitivity, rapidity, easy to operate. Satisfactory result was obttried for deter-mination of microamounts alumininm in water.