【摘要】 采用溶剂浮选分光光度原理,用砷钼杂多蓝-结晶紫体系进行萃取浮选,以甲苯-丙酮混合液为有机溶剂,在576nm处比色测定,可测得ng/mL级砷。可用于有机、无机样品中痕量砷的测定。更多还原

【Abstract】 Solvent flotation spectrophotometry was used here to determinate ppb grade arsenic. In the test procedure, arsenomolybdenum heteropolyblue and crystyl violet system was used as flotant, toluene and benzol mixture as solvent. The spectrophotometric measurement is at 576 nm. The above method could be used to determinate trace As in inorganic and organic samples.更多还原