氢化物发生-原子荧光光谱法在铀矿冶分析中的应用
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- 英文论文题名：Application on hydride generation-atomic fluorescence spectrometry in analysis of uranium mining and metallurgy
- 论文作者：周京霞
- 英文论文作者：ZHOU Jing-xia ; Beijing Research Institute of Chemical Engineering and Metallurgy ; Analysis and Testing Center
- 年：2015
- 作者机构：核工业北京化工冶金研究院分析测试中心;
- 论文关键词：氢化物发生-原子荧光光谱法 ; 铀矿冶分析 ; 应用
- 英文论文关键词：hydride generation-atomic fluorescence spectrometry ; analysis of uranium mining and metallurgy ; application
- 会议召开时间：2015-09-21
- 会议录名称：中国核科学技术进展报告（第四卷）——中国核学会2015年学术年会论文集第9册（核技术经济与管理现代化分卷、核电子学与核探测技术分卷、核测试与分析分卷）
- 语种：中文
- 分类号：O657.31;TD926.3
- 学会代码：EGVD
- 会议名称：中国核学会2015年学术年会
- 会议地点：中国四川绵阳
- 主办单位：中国核学会
- 学会名称：中国核学会
- 页数：8
- 文件大小：432k
- 原文格式：O
- 会议级别：全国
摘要
总结多年将氢化物发生-原子荧光光谱法应用于铀矿冶分析中的工作经验。通过研究表明,酸度、氢化物发生体系、铀及其他干扰元素是方法研究的主要问题。利用氢氧化钠在线中和方式使测定铅的酸度控制易于掌握;利用硫脲+抗坏血酸混合溶液使样品中砷、锑、铋、锡、硒预还原为能形成气态氢化物的价态;汞、镉通过硼氢化钾生成化学蒸气进行测定;利用本法检出限低的优势,样品溶液逐级稀释后,铀及其他元素不会对测定产生影响。测定实际样品表明,氢化物发生-原子荧光光谱法应用在铀矿冶分析完全可行,采用一台仪器就可完成对铀矿冶样品中砷、汞、铅、镉、硒、锑、锡、铋的测定。对铀矿石、铀矿石尾渣、铀工艺溶液、铀矿石浓缩物、铀矿冶环境样品中痕量砷、汞、铅、镉、锡、锑、铋、硒的测定灵敏度高,检出限低。无需事先分离铀基体,实现对待测样品中痕量砷、汞、铅、镉、锡、锑、铋、硒的定量分析,是一种非常适合铀矿冶分析的仪器分析方法。方法采用的分析仪器为中国自主研发,技术支持和仪器配件采购都来自国内,该项技术应用于我国铀矿冶领域分析具有重要意义。
The author summarizes the experience in the application of hydride generation-atomic fluorescence spectrometry to the analysis of uranium mining and metallurgy.Through the study,acidity,hydride generation,uranium and other interference elements was the main problem research.Using sodium hydroxide online and the determination of lead in control of the acidity was easy to master.Thiourea ascorbic acid mixed solution make arsenic,antimony,bismuth,tin,Selenium pre reduced valence to form a gaseous hydride.Mercury,cadmium were determined by chemical vapor by potassium borohydride.Low detection limit of the advantages of using this method,the sample solution by diluting,uranium and other elements would not affect.Determination of practical samples show that,application of hydride generation-atomic fluorescence spectrometry in the analysis of uranium mining and metallurgy was feasible.The instrument can be completed on the determination of arsenic in uranium mining and metallurgy samples,mercury,lead,cadmium,selenium,antimony,tin,bismuth.It was high sensitivity and low detection limit through determination of trace arsenic,mercury,lead,cadmium,tin,antimony,bismuth,selenium in Uranium ore,uranium ore tailings,uranium leaching solution,uranium ore concentrate,uranium in environmental samples.Without prior separation of uranium matrix,it would be completed the determination of trace arsenic,mercury,lead,cadmium,tin,antimony,bismuth,selenium content.Hydride generation atomic fluorescence spectrometry was a suited instrument analysis methods for uranium mining and metallurgy.Analysis instrument is China independent research and development.Technical support and equipment parts procurement was from China.The application of the technology to China's uranium mining and metallurgy field analysis was important.
The author summarizes the experience in the application of hydride generation-atomic fluorescence spectrometry to the analysis of uranium mining and metallurgy.Through the study,acidity,hydride generation,uranium and other interference elements was the main problem research.Using sodium hydroxide online and the determination of lead in control of the acidity was easy to master.Thiourea ascorbic acid mixed solution make arsenic,antimony,bismuth,tin,Selenium pre reduced valence to form a gaseous hydride.Mercury,cadmium were determined by chemical vapor by potassium borohydride.Low detection limit of the advantages of using this method,the sample solution by diluting,uranium and other elements would not affect.Determination of practical samples show that,application of hydride generation-atomic fluorescence spectrometry in the analysis of uranium mining and metallurgy was feasible.The instrument can be completed on the determination of arsenic in uranium mining and metallurgy samples,mercury,lead,cadmium,selenium,antimony,tin,bismuth.It was high sensitivity and low detection limit through determination of trace arsenic,mercury,lead,cadmium,tin,antimony,bismuth,selenium in Uranium ore,uranium ore tailings,uranium leaching solution,uranium ore concentrate,uranium in environmental samples.Without prior separation of uranium matrix,it would be completed the determination of trace arsenic,mercury,lead,cadmium,tin,antimony,bismuth,selenium content.Hydride generation atomic fluorescence spectrometry was a suited instrument analysis methods for uranium mining and metallurgy.Analysis instrument is China independent research and development.Technical support and equipment parts procurement was from China.The application of the technology to China's uranium mining and metallurgy field analysis was important.
引文
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[7]周京霞,曹淑琴.氢化物发生-原子荧光光谱法测铀矿石尾渣中砷的测量结果不确定度评定[J].铀矿冶,2010,29(2):87-91
[2]邓勃.应用原子吸收与原子荧光光谱分析[M].北京:化学工业出版社,2003:28-30.
[3]李岩.氢化物发生原子荧光光谱法测定钼精矿中砷和铋[J].光谱实验室,2001,18(1):107-111.
[4]王碧,王坤余,舒子斌.砷的形态和痕量分析研究新进展[J].理化检测-化学分册,2002,38(12):639-643.
[5]董灵英,孟宪厚,康惟道,关景泰.核纯铀和铀化合物中微量和超微量杂质元素分析的新技术[A].北京:原子能出版社,1996.19-29.
[6]孙汉文.原子光谱分析[M].北京:高等教育出版社.2002:225.
[7]周京霞,曹淑琴.氢化物发生-原子荧光光谱法测铀矿石尾渣中砷的测量结果不确定度评定[J].铀矿冶,2010,29(2):87-91