CAJ | 학술논문

根据等离子体原子发射光谱（ICP-AES）法测定土壤中铬的过程,建立相应的数学模型并对模型中各个参数进行了不确定度来源分析。结果表明,测定结果的不确定性主要来源于标准曲线的浓度与光谱强度拟合直线方程求铬含量的不确定度、标准溶液和配置标准工作溶液时的不确定度,其次为重复性不确定度;定容体积和样品称量过程的不确定度对测量结果的不确定度贡献相对较小。
근거등리자체원자발사광보（ICP-AES）법측정토양중락적과정,건립상응적수학모형병대모형중각개삼수진행료불학정도래원분석。결과표명,측정결과적불학정성주요래원우표준곡선적농도여광보강도의합직선방정구락함량적불학정도、표준용액화배치표준공작용액시적불학정도,기차위중복성불학정도;정용체적화양품칭량과정적불학정도대측량결과적불학정도공헌상대교소。
According to the process of determination of Chromium in soil using plasma-atomic emission spectrum （ICP-AES）, a mathematic model was established and the uncertainty source of every model parameter was analyzed. The results showed that the uncertainties sourced mainly from the calculated Chromium content by regression equation of concentration versus specu＇, al intensity and preparation of standard liquid; secondly from the uncertainty of repeatability. The uncertainties from the determination processes for volume and weight contributed little to the overall uncertainty.