A simple and general dried droplet calibration approach was developed for the quantitative analysis of elements in inorganic nonmetallic materials using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). For quantitative analysis, the elemental distribution in dried droplets was improved by optimizing the amount of a surfactant (Pluronic F-127) added into the calibration solutions and the drying temperature. Under optimal conditions, at 2.0 wt% Pluronic F-127 in the calibration solutions and a drying temperature of 85 °C, the relative standard deviation of the signal intensity obtained from multi-line ablation mode is less than 20% for dried droplets. Meanwhile, the experimental results revealed that dried droplets have no effect on the ablation of the sample and dried droplets can be totally ablated in one ablation raster. Further, the method was applied to analyze several inorganic non-metallic materials such as yttrium aluminum garnet (YAG) ceramic, BaF₂ crystal, and NIST SRM 612 glass. The linear correlation coefficients of the calibration curves ranged from 0.9936 to 0.9999 without any internal standard correction. Moreover, the results agree well with the results obtained by inductively coupled plasma atomic emission spectrometry or inductively coupled plasma atomic mass spectrometry and certified values.

中文翻译：

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激光烧蚀-电感耦合等离子体质谱法分析无机非金属材料的干滴定标方法

开发了一种简单且通用的干滴定标方法，用于使用激光烧蚀电感耦合等离子体质谱（LA-ICP-MS）定量分析无机非金属材料中的元素。对于定量分析，通过优化添加到校准溶液中的表面活性剂（Pluronic F-127）的量和干燥温度，可以改善干燥液滴中的元素分布。在最佳条件下，在校准溶液中2.0 wt％的Pluronic F-127和干燥温度为85°C时，对于多滴干燥液滴，从多线消融模式获得的信号强度的相对标准偏差小于20％。同时，实验结果表明，干滴对样品的烧蚀没有影响，干滴可以在一个烧蚀光栅中被完全烧蚀。_2个水晶和NIST SRM 612玻璃。校正曲线的线性相关系数范围为0.9936至0.9999，无需任何内标校正。而且，该结果与通过电感耦合等离子体原子发射光谱法或电感耦合等离子体原子质谱法获得的结果和认证值非常吻合。