高压密闭消解-电感耦合等离子体质谱法测定钨钼矿石中16种稀土元素
李小辉 , 韩瑞 , 张帆 , 来佳仪 , 张璐璐 , 孙佳 , 张玉艳
现代化工 ›› 2026, Vol. 46 ›› Issue (5) : 225 -231.
高压密闭消解-电感耦合等离子体质谱法测定钨钼矿石中16种稀土元素
Determination of 16 rare earth elements in tungsten-molybdenum ore by inductively coupled plasma mass spectrometry with high pressure closed digestion
采用高压密闭法消解样品,建立了电感耦合等离子体质谱(ICP-MS)法快速测定钨钼矿中16种稀土元素的分析方法,对样品前处理方法、称样量及消解温度等条件进行了实验,确立了最佳样品前处理条件,选用铑为内标元素补偿了基体效应和仪器漂移。考察了各元素的方法检出限、精密度和准确度等技术指标,结果表明,各元素在所测含量范围内线性关系良好,方法检出限(3 s)为0.002~0.015 μg/g。采用该方法用于国家标准物质分析,测定值与认定值基本一致,相对标准偏差RSD(n=6)为0.76%~4.21%,对实际样品进行加标回收实验,回收率为95.3%~105%。同时采用试验方法和标准方法GB/T 14352.20—2021中的碱熔方法对3个实际样品进行分析,测定结果相吻合。
A analysis method for 16 rare earth elements in tungsten-molybdenum ores using ICP-MS was established by using high-pressure sealed method.The sample pretreatment methods,sample weight and digestion temperature were tested,and the optimal pretreatment conditions were established.Rhodium was selected as the internal standard element to compensate for matrix effects and instrument drift.The technical indicators such as method detection limit,precision,and accuracy of each element were examined,and the results showed that the linear relationship between each element within the measured content range was good,with a method detection limit (3 s) of 0.002-0.015 μg/g.The method was used for the analysis of national standard substances,and the measured values were basically consistent with the recognized values.The relative standard deviation RSD(n=6) was 0.76%-4.21%.The actual samples were subjected to spiked recovery experiments,and the recovery rate was 95.3%-105%.And the alkali fusion method in GB/T 14352.20—2021 was used to analyze three actual samples,and the measurement results were consistent.
高压密闭消解 / 稀土元素 / 钨钼矿石 / 电感耦合等离子体质谱法
high pressure closed digestion / rare earth elements / tungsten-molybdenum ore / ICP-MS
| [1] |
陆海川, 袁新, 夏祥, |
| [2] |
冯先进, 马丽. 电感耦合等离子体质谱(ICP-MS)法在我国矿物中“四稀”元素检测的应用[J]. 中国无机分析化学, 2023, 13(8):802-812. |
| [3] |
叶再兴. 草酸盐重量法测定锆矿石中稀土总量[J]. 广东化工, 2024, 51(6):119-121. |
| [4] |
龙旭东, 高立红, 张红, |
| [5] |
夏峰林, 孔雪艳, 史秀梅. 分光光度法测定高放废液中的稀土总量[J]. 核化学与放射化学, 2020, 42(5):371-377. |
| [6] |
周伟, 曾梦, 王健, |
| [7] |
梁玉仪, 李兵, 孔翔飞, |
| [8] |
王书勤, 金艳妮, 赵娜娜, |
| [9] |
杨博为, 周万峰, 王永鑫, |
| [10] |
黄金松, 李正鹤, 王佳翰. 微波消解-ICP-MS测定海洋沉积物中的稀土元素[J]. 化学试剂, 2021, 43(4):515-519. |
| [11] |
张楠, 郑智慷, 王家松, |
| [12] |
唐碧玉, 张征莲, 谷娟平, |
| [13] |
|
| [14] |
李鹰, 俞晓峰, 寿淼钧, |
| [15] |
赵文志, 张填昊, 卢兵, |
| [16] |
吴葆存, 于亚辉, 闫红岭, |
| [17] |
曾江萍, 王家松, 朱悦, |
| [18] |
张祎玮, 蒋俊平, 李浩, |
| [19] |
吴磊, 刘义博, 王家松, |
| [20] |
陈硕, 李兵, 谭海军, |
| [21] |
袁润蕾, 于亚辉, 胡家祯, |
| [22] |
李艳华, 于亚辉, 曹立峰, |
| [23] |
张歌, 李维栋, 降林华, |
2024年度河南省自然资源科研项目(豫自然资函2024-5)
2024年度河南省地质局局管科研项目(豫地科研〔2024〕2号)
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