目前硒的测定方法很多，如3，3-二氨基联苯胺法，离子干扰严重[1]；对苯二胺法所用革取剂为甲苯，对人有害，同时显色反应需要很长时间（1～3h），并且离子干扰严重；6氨基一1＃酚一3磺酸测定法，虽然干扰少，但其灵敏度低［’］。总而言之，目前测定硒的方法虽然不少，但均存在 At present, there are many determination methods for selenium, such as the 3,3-diaminobenzidine method, which has serious ion interferences [1]; and the toluene for the para-phenylenediamine method is harmful to human and the color reaction takes a long time 1 ~ 3h), and the ion interference is serious; 6 amino-1 # phenol-3 sulfonic acid assay, although less interference, but its low sensitivity [’]. All in all, the current method of determination of selenium though a lot, but both exist