Rapid online analyzer for <14>C-AMS

Abstract

The invention discloses a rapid online analyzer for <14>C-AMS (Accelerator Mass Spectrometry). The rapid online analyzer comprises a solid-sample treating module, an atmosphere-sample collecting and treating module, a micro-flow control module, an AMS module and an automatic control module. The rapid online analyzer disclosed by the invention has the beneficial effects that sample preparation andAMS measurement are fused, not only can <14>C samples (including solid samples and atmosphere samples) be analyzed in a rapid and high-efficiency manner and can the possibility that the samples are polluted be reduced, but also the capabilities of analyzing and testing the <14>C samples can be greatly improved for an AMS laboratory in a limited machine hour, and meanwhile another scheme with faster speed and stronger anti-pollution capability also can be provided for measuring extremely-trace samples (the content is a few of micrograms); the solid original samples are directly transformed intoCO2 gas to be subjected to AMS measurement without being specially treated by a chemical laboratory, the atmosphere samples can be collected in real time for AMS analysis, so that the process of firstly preparing the samples and then carrying out <14>C-AMS measurement in the original special chemical laboratory is completely changed.

Description

technical field [0001] The present invention relates to a 14 C analyzer, in particular to a 14 A C-AMS fast online analyzer belongs to the technical field of analytical equipment. Background technique [0002] The development and promotion of AMS (Accelerator Mass Spectrometry, accelerator mass spectrometer) technology has made long-lived radionuclides 14 C is widely used in earth science, environmental science, archaeology, life science, marine science, cosmochemistry and other fields. At present, there are nearly 100 AMS laboratories in the world, and more than 90% of the energy and machine time of almost all laboratories are still invested in 14 C research. Since the emergence of AMS, its development has been consistent with 14 The application of C promotes each other, and the continuous development of AMS technology keeps promoting 14 The expansion of the application field of C, scientists for 14 C The development of new fields or the deep digging of existing fiel...

AI Technical Summary

Problems solved by technology

The more critical point is that this type of ion source is mainly aimed at solid samples to directly generate pure CO by elemental analysis. 2 Rapid analysis of gases, does not involve direct analysis of atmospheric samples and therefore does not incorporate CO 2 The purification system makes it impossible to measure atmospheric samples that require large-scale and rapid batches

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