饶 玲,刘 红,陈燕芹,潘 云.电感耦合等离子体发射光谱(ICP-OES)法测定含稀土磷矿中钛[J].中国无机分析化学,2017,7(3):29-32.
电感耦合等离子体发射光谱(ICP-OES)法测定含稀土磷矿中钛
Determination of Titanium in Rare Earth Phosphate Ores by ICP-OES
投稿时间:2016-11-16  最后修改时间:2016-12-07
DOI:doi:10.3969/j.issn.2095-1035.2017.03.008
中文关键词:    磷矿  电感耦合等离子体发射光谱法  标准加入法
英文关键词:titanium  phosphate ores  inductively coupled plasma atomic emission spectrometry  standard addition method
基金项目:国家级大学生创新项目(201610668019);毕节市煤磷化工工程技术中心(毕科合字[2015]1号)平台资助
           
作者单位
饶 玲 贵州工程应用技术学院 化学化工实验教学中心,贵州 毕节 551700
刘 红 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 551700
2 贵州省应用化学特色重点实验室,贵州 毕节 551700
陈燕芹 贵州省应用化学特色重点实验室,贵州 毕节 551700
潘 云 贵州工程应用技术学院 化学化工实验教学中心,贵州 毕节 551700
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中文摘要:
      为了准确测定磷矿石中钛的含量,采用两种溶样方法对磷矿进行处理,用电感耦合等离子体发射光谱(ICP-OES)法对磷矿中钛进行测定。实验表明,不进行基体匹配的标准曲线法不适合磷矿中钛的分析,采用基体匹配的标准曲线法时又难以制得与其各组分含量相似的校准溶液。用能有效消除样品本身基体干扰的标准加入法进行测定,分析结果的相对标准偏差小于2.0%,碱熔法的加标回收率为98.48%,酸溶法的加标回收率为104.4%,检测结果可靠,适合于磷矿中钛的分析。
英文摘要:
      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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