| 第 47 卷第 1 期 |  | Vol. 47 No. 1 | | 2017 年 2 月 | Feb 2017 |
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所屬欄目：分析與測試
濕法堿消解-淋洗液在線(xiàn)發(fā)生離子色譜法測定鋰云母中氟量 |
| 楊 清，鄒 娟，劉雨星，羅 穩，楊三妹，謝 超*
（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：建立了濕法堿消解-鹽酸提取-淋洗液在線(xiàn)發(fā)生離子色譜法測定鋰云母中氟量的方法。通過(guò)實(shí)驗確定了鹽酸用量、淋洗液濃度和淋洗液流速。方法檢出限為0.011 mg／L，線(xiàn)性相關(guān)系數r大于0.999 9。對實(shí)際鋰云母樣品進(jìn)行重復5次測定，并做了加標回收實(shí)驗，相對標準偏差RSD為0.34 %，加標回收率為98.8%~103.1%。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，能達到測定鋰云母中氟量的分析要求。 |
| 關(guān)鍵詞：鋰云母；濕法堿消解；鹽酸提��；離子色譜法；氟 |
| 中圖分類(lèi)號：O656 文獻標識碼：A 文章編號：1009-9212（2017）01-0070-03 |
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| Determination of Fluorine in Lepidolite Using Alkali Fusion-hydrochloric Acid Extract-ion
Chromatography with On-line Eluent Generator |
| YANG Qing, ZOU Juan, LIU Yu-xing, LUO Wen, YANG San-mei, XIE Chao*
(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 of alkali fusion-hydrochloric acid extract-ion chromatography with on-line eluent generator was established, which was able to determine fluorine in lepidolite. The amount of hydrochloric acid, the eluent components and the flow rate of eluent were confirmed via experimental tests. The results showed that the limit of detection was of 0.011 mg/L and the correlation coefficient of calibration curve was over 0.999 9. The relative standard deviation was 0.34%, and the recovery was ranged from 98.8% to 103.1%. The result of national standard material agreed with the recommended value. This method was fast with good accuracy, which was able to meet the requirements for determination of fluorine in lepidolite samples. |
| Key words：lepidolite; alkali fusion; hydrochloric acid extract; ion chromatography; fluorine |
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作者簡(jiǎn)介：楊 清（1989-），女，湖南岳陽(yáng)人，碩士研究生，研究方向：分析化學(xué)（E-mail: artemi@163.com）
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聯(lián) 系 人：謝 超，高級工程師，主要從事鹽湖化工工藝研究。
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收稿日期：2017-01-09
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