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使用LA-ICP-MS和分散在聚乙烯基酒精薄膜中的粉样进行定量分析

Masahiro Kobayashi¹, Hiromasa Namiki², Hideo Hayashi²

¹Tokyo Metropolitan Industrial Technology Research Institute, 2-4-10 Aomi, Koto-Ku, Tokyo, 135-0064, Japan. kobayashi.masahiro@iri-tokyo.jp.

Analytical sciences : the international journal of the Japan Society for Analytical Chemistry

|August 19, 2025

概括

一种新方法使用聚乙醇 (PVA) 糊剂进行激光剥离-诱导合等离子体质谱法 (LA-ICP-MS) 分析粉末. 这种技术可以在没有矩阵匹配标准的情况下进行准确的量化,从而改进了元素分析.

科学领域:

分析化学分析化学
材料科学材料科学材料科学
地质化学地质化学

背景情况:

使用激光切除-诱导合等离子体质谱法 (LA-ICP-MS) 进行定量分析通常需要矩阵匹配标准,这些标准通常无法用于各种样本类型.
使用LA-ICP-MS对固体样本的直接分析是强大的,但缺乏合适的标准限制了其定量应用,特别是对于粉末.

研究的目的:

开发一种使用LA-ICP-MS.进行粉样定量分析的新方法.
通过创建易于定制的标准来克服要求矩阵匹配标准的局限性.
为了证明开发的方法的灵敏度和准确性,用于各种陶粉中的元素量化.

主要方法:

粉末样品被分散在性聚乙烯醇 (PVA) 树脂中,形成糊状物.
使用印技术,从PVA粘贴中创建统一的薄膜样本.
使用了一种标准加法方法,涉及用标准解决方案准备的分析剂的PVA薄膜进行校准.

主要成果:

开发的方法允许使用LA-ICP-MS对粉样进行定量分析,而不需要传统的矩阵匹配标准.
乙烯的水友性质允许分析剂与树脂的比例高,确保足够的灵敏度 (检测极限<0.1μg/g).
对陶粉中的元素 (SiC,ZrO2,TiO2) 在五个数量级的度范围内 (<1μg/g至>1重%) 实现了准确的量化.

结论:

聚乙烯糊和印方法为准备样本用于LA-ICP-MS分析提供了一种多功能方法.
这种技术可轻松为单个样本量身定制可靠的矩阵匹配标准,大大扩大了定量LA-ICP-MS的适用性.
该方法具有显著的潜力,可以改善各种科学学科中各种粉末材料的定量元素分析.

关键词:

感应合的等离子体质谱学质谱学.激光切除术是一种激光切除术.定量分析是一种量化分析.幕印刷是一种幕印刷.

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