盐及盐卤中微量铁铝钙镁的连续测定

Contiuous Determination of Trace Fe￣(3+),Mg￣(2+),Al￣(3+) and ca￣(2+) in satt or Bittern

介绍了用ＥＤＴＡ络合滴定法连续测定盐及盐卤中微量铁铝钙镁的原理和步骤。回收率在９８．５％～１０３．９％之间，方法简便，具有连续快速的特点。

This paper described the principle and steps about continuous determination of trace Fe3+,Al3+,Ca2+ and Mg2+ in salt or bittern with the EDTA-complex titration.The recoveries were between 98.5%～103.9%.This method has advantages of simplicity,quickness and continuity.