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通过激光诱导的分解光谱学分析化盐,控制均降水

Lizhu Kang¹, Ji Chen¹, Zhijie Huang¹

¹Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, PR China.

Analytica chimica acta

|November 12, 2024

概括

控制均沉 (CUP) 方法有效地处理激光诱导分解光谱 (LIBS) 分析的化盐. 这种新的方法显著提高了生产中的光谱稳定性和检测精度.

科学领域:

分析化学分析化学
材料科学材料科学材料科学
电化学电化学电化学

背景情况:

生产中的电解效率受到溶盐中化物含量的限制.
精确检测冷却融盐中的金属含量对于工艺控制至关重要.
冷却的化盐的微妙发光阻碍了使用激光诱导分解光谱 (LIBS) 的可靠分析.

研究的目的:

开发一种预处理方法,用于精的盐样本,以改善LIBS检测.
为了提高LIBS分析融盐成分的光谱稳定性和准确性.
为了应对样品质量和咖啡环效应在定量LIBS中所带来的挑战.

主要方法:

采用一种液相沉方法,称为控制均沉 (CUP),用于样品预处理.
在CUP方法中,使用分散剂在液态阶段实现均降水.
将CUP与传统的粉末压缩和沉方法进行比较.

主要成果:

与传统方法相比,CUP方法显著提高了光谱稳定性和检测精度.
对于Mg,Ca和Na的平均相对标准偏差 (ARSD) 随着CUP显著下降.
确定系数 (R2) 增加,平均相对误差 (ARE) 减少,这表明校准增强和CUP的误差减少.
CUP有效地抑制了样品的精华和咖啡环效应.

结论:

控制均沉 (CUP) 方法提供了一种有效的解决方案,用于检测质样本中的金属元素.
CUP方法显示了改善LIBS溶盐组合物的定量检测的巨大潜力.
这种方法对在具有挑战性的矩阵中分析其他可沉元素具有前景.

关键词:

精致的样本精致的样本分散剂分散剂是一种分散剂.在LIBS中,LIBS是指LIBS.定量分析是一种量化分析.它的光谱稳定性.

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