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采用电热原子化激光共振电离飞行时间质谱仪（ＥＴＡＬＲＩ－ＴＯＦＭＳ）首次实现了对土壤中气相金地质样品的超痕量测量，用中子活化技术进行随机抽样检查，测量结果一致。样品的绝对检出限达到１０－１３ｇ，同时也对谱仪进行了自检研究
Ultra-trace measurements of gas-phase geologic samples in soils were carried out for the first time using electrochemically-atomized laser resonance ionization time-of-flight mass spectrometry (ETALRI-TOFMS). The results were consistent with neutron activation techniques. The absolute detection limit of the sample reached 10-13g, but also self-test on the spectrometer