紫外导数分光光度法测定微量铁

TO DETERMINE IRON WITH ULTRAVIOLET SPECTROPHOTOMETRIC METHOD

研究了铁的紫外导致测定法，以改鼠钠为路合剂，以HAc－NaAc为缓冲体系（pH＝3.72），体系在295nm有最大吸收，ε＝5×104L·mol－1·cm－1，且峰形尖锐，通过做导致灵敏度可提高四倍，建立的方法简便、快捷，结果令人满意．

In this article,ultraviolet spectrophotometric method of iron determination was de scribed. Iron forms a complex with Diphacinone at pH 3. 72,HAc-NaAc as the buffersolution, λmax. = 295nm, ε = 5 × 104L mol-1cm-1. Sensitivity can increased by 400% withderivative ultraviolet spectrophotometric method, proposed method is simple, rapid, results obtained are satisfactory.