化学分析计量
化學分析計量
화학분석계량
CHEMICAL ANALYSIS AND METERAGE
2015年
4期
48-51
,共4页
电感耦合等离子体发射光谱法%金属元素%岩矿分析
電感耦閤等離子體髮射光譜法%金屬元素%巖礦分析
전감우합등리자체발사광보법%금속원소%암광분석
inductively coupled plasma-atomic emission spectrometry (ICP-AES)%metallic element%rock and mineral analysis
建立电感耦合等离子体发射光谱法测定岩石矿物中17种金属元素的分析方法。采用王水–氢氟酸–高氯酸对样品进行前处理，17种元素的分析谱线为213.857～766.49 nm，射频功率为750～1300 W，雾化气流量为0.7～1.2 L／min。各元素的质量浓度在0～4μg／mL范围内与谱线强度呈良好的线性关系，r≥0.999，方法检出限为0.006～0.42μg／g。用该方法对国家一级标准物质进行测定，测定结果的相对误差在±16%之内，相对标准偏差为0.08%～4.15%(n=6)。该方法操作简单、准确度高，适用于岩石和矿物中金属元素的测定。
建立電感耦閤等離子體髮射光譜法測定巖石礦物中17種金屬元素的分析方法。採用王水–氫氟痠–高氯痠對樣品進行前處理，17種元素的分析譜線為213.857～766.49 nm，射頻功率為750～1300 W，霧化氣流量為0.7～1.2 L／min。各元素的質量濃度在0～4μg／mL範圍內與譜線彊度呈良好的線性關繫，r≥0.999，方法檢齣限為0.006～0.42μg／g。用該方法對國傢一級標準物質進行測定，測定結果的相對誤差在±16%之內，相對標準偏差為0.08%～4.15%(n=6)。該方法操作簡單、準確度高，適用于巖石和礦物中金屬元素的測定。
건립전감우합등리자체발사광보법측정암석광물중17충금속원소적분석방법。채용왕수–경불산–고록산대양품진행전처리，17충원소적분석보선위213.857～766.49 nm，사빈공솔위750～1300 W，무화기류량위0.7～1.2 L／min。각원소적질량농도재0～4μg／mL범위내여보선강도정량호적선성관계，r≥0.999，방법검출한위0.006～0.42μg／g。용해방법대국가일급표준물질진행측정，측정결과적상대오차재±16%지내，상대표준편차위0.08%～4.15%(n=6)。해방법조작간단、준학도고，괄용우암석화광물중금속원소적측정。
The determination of 17 elements in rock and mineral samples by inductively coupled plasma-atomic emission spectrometry (ICP–AES) was developed. The sample was dissolved in aqua regia,HF and HClO4 mixed acids. The analytical spectral lines of 17 elements were 213.857–766.49 nm,RF power was 750–1 300 W,and atomizing gas flow was 0.7–1.2 L/min. The mass concentration of detection element was linear with emission intensity in the range of 0–4 μg/mL, r≥0.999. The detection limits were 0.006–0.42 μg/g. The method was applied to the determination of these elements in the reference material, the relative error was within ±16%, and the relative standard deviations of detection results were 0.08%–4.15% (n=6). The method is simple and accurate,it can be applied to the determination of metal elements in rock and minerals.
