The arsenic was in the hair samples was then determined with hydride generator-atomic fluorescence spectrometry using 10% HCl as acid medium, 1% ascorbic acid-1% potassium iodide as solution improver and 2% KBH 4 as the reducing agent.

• 用 10 %25的盐酸转移 ,1%25VitC -1%25ki作为基体改进剂 ,10 %25的HCl稀释定容到 10ml; 以 2 %25的KBH4作为还原剂 ,10 %25的盐酸为酸介质 ,进行测定。