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中国无机分析化学:2014,4(1):41-45
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电感耦合等离子体原子发射光谱法测定锰矿石中主次量元素
(陕西省地质矿产实验研究所,西安 710054)
Inductively Coupled Plasma Emission Spectrometry Determination of Primary and Secondary Elements in Manganese Ore
(Institute of Geological and Mineral Resources of Shaanxi Province, Xian, Shaanxi 710054,China)
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投稿时间:2013-10-22    修订日期:2013-11-22
中文摘要: 传统的化学分析方法分析矿石中主次量元素流程长,效率低。受干扰影响大,耗费大量人力物力,采用电感耦合等离子体原子发射光谱法测定技术对锰矿中的主次量元素进行了研究,主要测定了铝、铜、钙、铁、钾、镁、锰、钠、镍、磷、钛、锌等13种元素的含量。仪器采用射频功率1 150 W,雾化器流速为0.70 L/min,辅助器流速0.50 L/min,观测高度12 mm的测定条件。采用硝酸、盐酸、氢氟酸、高氯酸四酸溶矿,实验表明,溶液中分别共存200 mg/L以下的钾钠钙镁钒锰,对各微量元素的测定基本没有干扰。分析方法的检出限0.0002%~0.0065%。相对标准偏差(RSD)<3.7%。均符合DZ/T0130—2006 地质矿产实验室测试质量管理规范中精密度和准确度的控制指标。
Abstract:There are some disadvantages in the traditional chemical analysis methods for the determination of primary and secondary elements in ore, including time-consuming analytical process, low efficiency, big elemental interference which costs a lot of manpower and material resources. In this paper, the advanced inductively coupled plasma emission spectrometry technique was used to study the primary and secondary elements in manganese ore. Thirteen elements were mainly analyzed, which included aluminum, copper, calcium, iron, potassium, magnesium, manganese, sodium, nickel, phosphorus, titanium and zinc, etc. The working conditions were as follows: the radio frequency power of 1 150 w, atomizer velocity of 0.70 L/min, the auxiliary device velocity of 0.50 L/min and observation height of about 12 mm. Mineral samples were dissolved using nitric acid, hydrochloric acid, hydrofluoric acid and perchloric acid. The interference test showed that the determination of trace elements was not interfered when the concentration of coexisting elements such as potassium, sodium, calcium, magnesium, manganese and vanadium was below 200 mg/L in the solution. The detection limit of the method is about 0.0002%~0.0065% and the precision is less than 3.7%, which are consistent with the required precision and accuracy that are defined in the quality control standard for conducting test in a geology and mineral resources laboratory, namely, DZ/T0130—2006.
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基金项目:国土资源地质大调查项目 (1212011220326) 资助;陕西省地质矿产实验研究所总工基金项目(2012-03)资助
引用文本:
张 艳,吴 峥,张飞鸽,雒 虹.电感耦合等离子体原子发射光谱法测定锰矿石中主次量元素[J].中国无机分析化学,2014,4(1):41-45.
ZHANG Yan,WU Zheng,ZHANG Feige,LUO Hong.Inductively Coupled Plasma Emission Spectrometry Determination of Primary and Secondary Elements in Manganese Ore[J].Chinese Journal of Inorganic Analytical Chemistry,2014,4(1):41-45.

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