| 第 45 卷第 3 期 |  | Vol. 45 No. 3 | | 2015 年 6 月 | Jun 2015 |
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所屬欄目：分析與測試
電感耦合等離子體發(fā)射光譜法（ICP-AES）測定鐵礦石中的磷、硅、鋁 |
| 劉雨星，楊三妹，羅 穩，鄒 娟，楊 清
（化工部長(cháng)沙設計研究院 湖南省鉀及伴生物工程技術(shù)研究中心，湖南 長(cháng)沙 410116） |
| 摘 要：建立了堿熔-鹽酸提取-電感耦合等離子體發(fā)射光譜法測定鐵礦石中的磷、硅、鋁的方法。通過(guò)實(shí)驗確定了分析譜線(xiàn)和鹽酸用量。方法檢出限低，線(xiàn)性相關(guān)系數r均大于0.999 9。對實(shí)際鐵礦石樣品進(jìn)行重復6次測定，并做了加標回收實(shí)驗，精密度為0.18%～1.65%，回收率為98.0%～112.4%，經(jīng)國家標準品驗證，測定值與標準值相符。該方法快速準確，能達到同時(shí)測定鐵礦石中磷、硅、鋁的分析要求。 |
| 關(guān)鍵詞：鐵礦石；電感耦合等離子體發(fā)射光譜法；磷；硅；鋁 |
| 中圖分類(lèi)號：O657.31 文獻標識碼：A 文章編號：1009-9212（2015）03-0076-03 |
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| Determination of Phosphorus, Silicon, Aluminium in Iron Ore Using Inductively Coupled Plasma Atomic Emission Spectrometry |
| LIU Yu-xing, YANG San-mei, LUO Wen, ZOU Juan, YANG Qing
(Changsha Design & Research Institute, the Ministry of Chemical Industry Changsha, Hunan Engineering Research Center of Potassium and its Co-existed Resources, Changsha 410116, China) |
| Abstract：A method was established to determine phosphorus, silicon, aluminium in iron ore by alkali fusion-inductively coupled plasma atomic emission spectrometry. The best spectral lines and the amount of hydrochloric acid were confirmed via experimental tests. The results showed that the limits of detection were low and the correlation coefficients of calibration curves were over 0.999 9. The determination of actual iron ore samples was repeated six times, which indicated that the relative standard deviations were less than 1.65%, and the recoveries were ranged from 98.0% to 112.4%. The result of national standard material agreed with the recommended value. This method is fast with good accuracy, which can meet the requirements for determination of phosphorus, silicon, aluminium in iron ore samples. |
| Key words：iron ore; ICP-AES; phosphorus; silicon; aluminium |
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作者簡(jiǎn)介： 劉雨星（1988-），女，湖南永州人，工程師，研究方向：巖礦分析、環(huán)境監測等（E-mail：lyx6007@163.com）。
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收稿日期： 2015-05-0
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