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| Determination of Titanium in Rare Earth Phosphate Ores by ICP-OES |
| Received:November 16, 2016 Revised:December 07, 2016 |
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| DOI：doi:10.3969/j.issn.2095-1035.2017.03.008 |
| KeyWord:titanium；phosphate ores; inductively coupled plasma atomic emission spectrometry; standard addition method |
| Author | Institution |
| RAO Ling |
贵州工程应用技术学院 化学化工实验教学中心，贵州 毕节 |
| LIU Hong |
1 贵州工程应用技术学院 化学化工实验教学中心，贵州 毕节 ;2 贵州省应用化学特色重点实验室，贵州 毕节 |
| CHEN Yanqin |
贵州省应用化学特色重点实验室，贵州 毕节 |
| PAN Yun |
贵州工程应用技术学院 化学化工实验教学中心，贵州 毕节 |
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| Abstract: |
| To accurately determine the content of titanium in the phosphate rock, two dissolution methods were adopted to prepare the samples. The content was determined by ICP-OES. The experimental results showed that the standard curve method without matrix matching was not suitable for the determination of titanium in the phosphate rock, while the method with matrix matching was difficult to match the calibration solution with the content of each component. Standard addition method was used to analyze the samples and the matrix interference was eliminated effectively. The relative standard deviation for the determination of titanium was less than 2%. The recoveries of alkali fusion method and acid melting method were 98.48%, and 98.48% ?respectively. |
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