明胶凝胶作为 LA-ICP-MS 生物成像中的多元素校准标准：均匀标准品的制备和微均一性测试。
Gelatin gels as multi-element calibration standards in LA-ICP-MS bioimaging: fabrication of homogeneous standards and microhomogeneity testing.
机构信息
Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia.
出版信息
Analyst. 2017 Sep 8;142(18):3356-3359. doi: 10.1039/c7an01361b.
PMID:28832035
Abstract
Highly homogeneous multi-element gelatin calibration standards were fabricated for quantitative LA-ICP-MS bioimaging. Heterogeneity issues caused by the so-called "coffee-stain" and/or "Marangoni" effects were found to be element-dependent but could be circumvented by careful selection of drying/setting conditions. A micro-homogeneity test was developed for certification of the standards.
摘要
我们制备了高度均匀的多元素明胶校准标准品，用于 LA-ICP-MS 生物成像的定量分析。研究发现，由所谓的“咖啡环”和/或“马拉高尼”效应引起的非均一性问题是元素依赖性的，但可以通过仔细选择干燥/凝固条件来避免。我们开发了一种微观均匀性测试方法，用于对标准品进行认证。
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