Method for tracing calcium metabolism of organisms by analyzing 41Ca by using low-energy AMS (Amplified Mass Spectrometry)

The invention relates to the technical field of organism calcium metabolism tracing, in particular to a method for tracing organism calcium metabolism by analyzing 41Ca by using a low-energy accelerator mass spectrometer (AMS), which comprises the following steps: preparing a sample into a target substance in the form of CaF2, taking a super halogen anion of Ca as an extraction beam, and using a 3MV accelerator mass spectrometer to extract 41Ca in a fast alternating injection mode. The invention relates to a method for directly detecting 41Ca in batches. According to the method, the 41Ca and the 41K are separated by adopting the low-energy AMS equipment, the economical efficiency of the equipment is considered, a simple, direct and batch daily detection method is provided for practical application taking 41Ca tracing as a target, and the practicability is high. 本发明涉及生物体钙代谢示踪技术领域，具体涉及一种利用低能加速器质谱仪(AMS)分析41Ca进行生物体钙代谢示踪的方法，将样品制备为CaF2形式的靶物质，以Ca的超级卤素负离子为引出束流，使用3MV加速器质谱仪，在快交替注入模式下，直接地、批量化地检测41Ca的方法。本发明方法采用低能AMS设备实现了