贵金属
貴金屬
귀금속
PRECIOUS METALS
2013年
4期
43-47,52
,共6页
钟良%杨天足%陈霖%李家元%刘志楼
鐘良%楊天足%陳霖%李傢元%劉誌樓
종량%양천족%진림%리가원%류지루
分析化恘%王水不溶渣%硫脲%钌%分光光度法
分析化恘%王水不溶渣%硫脲%釕%分光光度法
분석화규%왕수불용사%류뇨%조%분광광도법
analytical chemistry%aqua regia insoluble residue%thiourea%ruthenium%spectrophotometry
建立了一种以次氯酸钠作氧化剂，碱性加压氧化法溶解王水不溶渣中钌的方法。以酒精沉淀，盐酸溶解，硫脲分光光度法进行样品中钌含量的测定。方法对王水不溶渣中钌的溶解效果好，操作简单；王水不溶渣加压氧化浸出液共存的主要杂质离子 Na+、Cl-、Pb2+、Bi2+等(不含 Os)对吸光度无影响。采用硫脲分光光度法测定样品中13.771μg/mL钌，RSD (n=6)为1.536%，加标回收率为98.73%~102.76%。
建立瞭一種以次氯痠鈉作氧化劑，堿性加壓氧化法溶解王水不溶渣中釕的方法。以酒精沉澱，鹽痠溶解，硫脲分光光度法進行樣品中釕含量的測定。方法對王水不溶渣中釕的溶解效果好，操作簡單；王水不溶渣加壓氧化浸齣液共存的主要雜質離子 Na+、Cl-、Pb2+、Bi2+等(不含 Os)對吸光度無影響。採用硫脲分光光度法測定樣品中13.771μg/mL釕，RSD (n=6)為1.536%，加標迴收率為98.73%~102.76%。
건립료일충이차록산납작양화제，감성가압양화법용해왕수불용사중조적방법。이주정침정，염산용해，류뇨분광광도법진행양품중조함량적측정。방법대왕수불용사중조적용해효과호，조작간단；왕수불용사가압양화침출액공존적주요잡질리자 Na+、Cl-、Pb2+、Bi2+등(불함 Os)대흡광도무영향。채용류뇨분광광도법측정양품중13.771μg/mL조，RSD (n=6)위1.536%，가표회수솔위98.73%~102.76%。
Ruthenium in aqua regia-insoluble residue was dissolved by an alkaline pressure oxidation method with sodium hypochlorite as antioxidant in alkaline system, followed by content analysis of ruthenium using the thiourea-spectrophotometry. Ruthenium could be converted into the solution and the accompanying main impurity ions (such as Na+, Cl-, Pb2+, Bi2+) had no interference with the determination of ruthenium. The relative standard deviation (n=6) was 1.536%in the sample containing 13.771 μg/mL of ruthenium, and the recovery of the addition of standard ruthenium was 98.73%~102.76%.
