化学分析计量
化學分析計量
화학분석계량
CHEMICAL ANALYSIS AND METERAGE
2015年
4期
29-31
,共3页
徐晓云%贾德华%刘军%吴双九
徐曉雲%賈德華%劉軍%吳雙九
서효운%가덕화%류군%오쌍구
电感耦合等离子体发射光谱法%硼%硅质耐火原料%溶解率
電感耦閤等離子體髮射光譜法%硼%硅質耐火原料%溶解率
전감우합등리자체발사광보법%붕%규질내화원료%용해솔
ICP-OES%boron%silica refractory raw material%dissolution ratio
采用电感耦合等离子体发射光谱法测定硅质耐火材料中的硼含量。试验了3种样品处理方法:HF+硝酸酸溶法、碳酸钠碱熔法及水+甘露醇溶解法对硅质耐火原料中硼的溶解率,确定水–甘露醇为处理硅质耐火原料的最佳方法。分析谱线选择249.677 nm和249.772 nm,以ICP–OES法测定,硼的回收率在94.0%~102.0%之间,6次测定结果的相对标准偏差小于3%,与滴定法测定结果相吻合。该法简便、可靠,可用于测定硅质耐火原料中的硼含量。
採用電感耦閤等離子體髮射光譜法測定硅質耐火材料中的硼含量。試驗瞭3種樣品處理方法:HF+硝痠痠溶法、碳痠鈉堿鎔法及水+甘露醇溶解法對硅質耐火原料中硼的溶解率,確定水–甘露醇為處理硅質耐火原料的最佳方法。分析譜線選擇249.677 nm和249.772 nm,以ICP–OES法測定,硼的迴收率在94.0%~102.0%之間,6次測定結果的相對標準偏差小于3%,與滴定法測定結果相吻閤。該法簡便、可靠,可用于測定硅質耐火原料中的硼含量。
채용전감우합등리자체발사광보법측정규질내화재료중적붕함량。시험료3충양품처리방법:HF+초산산용법、탄산납감용법급수+감로순용해법대규질내화원료중붕적용해솔,학정수–감로순위처리규질내화원료적최가방법。분석보선선택249.677 nm화249.772 nm,이ICP–OES법측정,붕적회수솔재94.0%~102.0%지간,6차측정결과적상대표준편차소우3%,여적정법측정결과상문합。해법간편、가고,가용우측정규질내화원료중적붕함량。
Boron in silica refractory raw materials was determined by ICP–OES. The dissolution ratio of boron in silica refractory raw materials was tested by three sample preparation methods:HF–HNO3,NaCO3 and water–mannitol dis-solution,it indicated by the test results that water–mannitol was more suitable to prepare samples than the others. 249.677 nm and 249.772 nm were selected as analysis spectral lines,the content of boron in silica refractory raw materials was de-termined by ICP–OES. The recovery of boron was between 94.0%and 102.0%,RSD was less than 3%(n=6),and the detect results by this method were in accord with those detected by titration method. This is a simple, fast and reliable method for the determination of boron in silica refractory raw materials.