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90Sr是环境放射化学最关心的核素之一。迄今为止,已有大量的放化方法用于分析生物或环境样品中的90Sr。这些方法的一个重要共同点是,都需要一种选择性试剂从大量的基体杂质中将90Sr提取出来,并去除干扰放射性测量的其他β放射性核素。18-冠-6及其衍生物是应用最广泛的锶特
90Sr is one of the most concerned nuclides in environmental radiochemistry. So far, a large number of radiochemical methods have been used to analyze 90Sr in biological or environmental samples. An important thing in common with these methods is the need for a selective reagent to extract 90Sr from a large amount of matrix impurities and to remove other beta-radionuclides that interfere with radiometric measurements. 18-crown-6 and its derivatives are the most widely used strontium