化学分析计量
化學分析計量
화학분석계량
CHEMICAL ANALYSIS AND METERAGE
2014年
4期
51-53
,共3页
电感耦合等离子体原子发射光谱法%镍基钎料%Cr%Si%B%Fe
電感耦閤等離子體原子髮射光譜法%鎳基釬料%Cr%Si%B%Fe
전감우합등리자체원자발사광보법%얼기천료%Cr%Si%B%Fe
ICP-AES%nickel-base brazing material%Cr%Si%B%Fe
建立了电感耦合等离子体原子发射光谱法测定镍基钎料中Cr，Si，B，Fe含量的新方法。以硝酸–氢氟酸溶解样品，分别选择267.716，288.158，249.677，259.940 nm作为分析谱线，不用进行基体匹配，可直接测定镍基钎料中Cr，Si，B，Fe含量。在优化的实验条件下，测定结果的相对标准偏差为0.71%～1.43%（n=11），加标回收率为97.0%～102.0%。该方法可满足日常分析对镍基钎料中Cr，Si，B，Fe含量的检测要求。
建立瞭電感耦閤等離子體原子髮射光譜法測定鎳基釬料中Cr，Si，B，Fe含量的新方法。以硝痠–氫氟痠溶解樣品，分彆選擇267.716，288.158，249.677，259.940 nm作為分析譜線，不用進行基體匹配，可直接測定鎳基釬料中Cr，Si，B，Fe含量。在優化的實驗條件下，測定結果的相對標準偏差為0.71%～1.43%（n=11），加標迴收率為97.0%～102.0%。該方法可滿足日常分析對鎳基釬料中Cr，Si，B，Fe含量的檢測要求。
건립료전감우합등리자체원자발사광보법측정얼기천료중Cr，Si，B，Fe함량적신방법。이초산–경불산용해양품，분별선택267.716，288.158，249.677，259.940 nm작위분석보선，불용진행기체필배，가직접측정얼기천료중Cr，Si，B，Fe함량。재우화적실험조건하，측정결과적상대표준편차위0.71%～1.43%（n=11），가표회수솔위97.0%～102.0%。해방법가만족일상분석대얼기천료중Cr，Si，B，Fe함량적검측요구。
A new method was set up for the determination of Cr, Si, B, Fe in nickel-base brazing material by ICP–AES. The determination conditions such as the sample pre-treatment method, the matrix and the analytical lines were dis-cussed. The sample was dissolved in nitric acid-hydrofluoric acid, 267.716, 288.158, 249.677, 259.940 nm were selected as the analytical spectral lines for Cr, Si, B, Fe, respectively. It was showed that under the optimal conditions the results were satisfactory with RSD (n=11) less than 2.0%and the recoveries tested were in the range of 97.0%–102.0%. The method has good sensitivity, low detection limit,and it is feasible in the determination of Cr, Si, B, Fe in nickel-base brazing material.
