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近10年来国际上用热电离质谱代替α谱仪测定不平衡铀系样品的年龄，在造礁珊瑚、洞穴堆积物、年轻火山岩和湖泊沉积物等领域已取得了显著的成果。该技术有明显的优点，如样品用量少，测试时间短，测量精度高，测年范围宽，是中更新世至全新世以来有效的测年方法之一，可为全球变化研究提供高精度和高灵敏度的年龄谱，展示了热电离质谱技术如同加速器质谱技术一样，有广阔的应用前景。我们曾用MAT－262质谱仪对国内石笋标样（GBW04412，GBW04413）和国际珊瑚标样（RKM－4）进行过测试，取得了与标准值一致的结果。
In the recent 10 years, the thermal aging ionization mass spectrometry was used to replace the α spectrometer to determine the age of unbalanced uranium series samples. Significant achievements have been made in such areas as coral reefs, cave deposits, young volcanic rocks and lake sediments. The technology has obvious advantages such as less sample usage, short test time, high measurement accuracy and wide range of dating. It is one of the effective dating methods since the Middle Pleistocene to the Holocene and can provide high precision for global change research And hypersensitive age spectrum, showing that thermal ionization mass spectrometry has the same broad application prospect as accelerator mass spectrometry. We used MAT-262 mass spectrometer to test domestic stalagmite samples (GBW04412, GBW04413) and international coral standard samples (RKM-4), and achieved the same results as the standard ones.