山东冶金
山東冶金
산동야금
SHANDONG METALLURY
2013年
6期
41-42,48
,共3页
砷%铁矿石%电感耦合等离子体光谱仪
砷%鐵礦石%電感耦閤等離子體光譜儀
신%철광석%전감우합등리자체광보의
arsenic%iron ore%inductively coupled plasma optical emission spectrometer (ICP-OES)
采用盐酸、氢氟酸、高氯酸处理样品，高温冒烟蒸发驱氟，通过优化实验，确定了ICP-OES法测定铁矿石中砷的分析方法。仪器最佳分析条件：高频功率1400 W，雾化气流量1.0 L/min，辅助气流量0.8 L/min，冲洗时间45 s；采用匹配基体的方法消除干扰；选择As189.042 nm和As193.759 nm两条分析谱线。结果表明，方法检出限＜0.02μg/mL，RSD＜4%。
採用鹽痠、氫氟痠、高氯痠處理樣品，高溫冒煙蒸髮驅氟，通過優化實驗，確定瞭ICP-OES法測定鐵礦石中砷的分析方法。儀器最佳分析條件：高頻功率1400 W，霧化氣流量1.0 L/min，輔助氣流量0.8 L/min，遲洗時間45 s；採用匹配基體的方法消除榦擾；選擇As189.042 nm和As193.759 nm兩條分析譜線。結果錶明，方法檢齣限＜0.02μg/mL，RSD＜4%。
채용염산、경불산、고록산처리양품，고온모연증발구불，통과우화실험，학정료ICP-OES법측정철광석중신적분석방법。의기최가분석조건：고빈공솔1400 W，무화기류량1.0 L/min，보조기류량0.8 L/min，충세시간45 s；채용필배기체적방법소제간우；선택As189.042 nm화As193.759 nm량조분석보선。결과표명，방법검출한＜0.02μg/mL，RSD＜4%。
The simple was dissolved by adding hydrochloric acid, hydrofluoric acid and perchloric acid. Residual mixed acid in the solution was driven away by evaporation. Through optimizing experiments, the analysis method of testing the arsenic in iron ore by ICP-OES method was established. The best parameters of the instrument selected by experiment are as follows:plasma power 1 400 W, atomizing air flow 1.0 L/min, auxiliary flow 0.8 L/min and washing time 45 s, at the same time, the interference from matrix was eliminated by matrix matching and selected spectral lines are As189.042 nm and As 193.759 nm. The results showed that detection limit is less than 0.02μg/mL and the RSD<4%.
