| 引用本文： |
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韩清娟,罗明贵,邓正源,阮贵武.石墨炉原子吸收分光光度法测定钛白粉中的微量铅[J].广西科学院学报,2010,26(3):289-290,294. [点击复制]
- HAN Qing-juan,LUO Ming-gui,DENG Zheng-yuan,RUAN Gui-wu.Determination of Micro Lead in Titanium Dioxide by Graphite Furnace Atomic Absorption Spectrometry[J].Journal of Guangxi Academy of Sciences,2010,26(3):289-290,294. [点击复制]
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| 摘要: |
| 利用氢氟酸-硝酸体系溶解钛白粉样品,以磷酸二氢铵为基体改进剂,用石墨炉原子吸收分光光度法测定钛白粉中有害金属元素铅含量。结果显示,该方法的检出限为0.79ng/ml,加标回收率为97.0%~103.0%,相对标准偏差2.6%~5.2%。该方法用于钛白粉中微量铅的测定,简便快捷,效果理想。 |
| 关键词: 石墨炉原子吸收 铅 钛白粉 磷酸二氢铵 |
| DOI： |
| 投稿时间：2010-06-21 |
| 基金项目: |
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| Determination of Micro Lead in Titanium Dioxide by Graphite Furnace Atomic Absorption Spectrometry |
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HAN Qing-juan, LUO Ming-gui, DENG Zheng-yuan, RUAN Gui-wu
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| (Fangchenggang Entry-Exit Inspection and Quarantine Bureau, Fangchenggang, Guangxi, 538001, China) |
| Abstract: |
| A method has been developed for the determination of micro lead in titanium dioxide by graphite furnace atomic absorption spectrometry(GF-AAS).Titanium dioxide was completely dissolved by HF-HNO3 and determined with ammonium dihydrogen phosphate as matrix modifier. The detection limit was 0.79 ng/ml. The recoveries for spiking samples were 97.0%~103.0% with the relative standard deviation of 2.6%~5.2%. The proposed method has been applied in the analysis of titanium dioxide and the results are ideal. |
| Key words: GF-AAS lead titanium dioxide ammonium dihydrogen phosphate |
