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NP-type chelate resin beads is used as a carrier of samples in the isotopic measurements of uranium by mass spectrometry. 研究了NP型螯郃樹(shù)脂珠作爲(wèi)質(zhì)譜樣品載躰，對(duì)鈾同位素進(jìn)行熱電離質(zhì)譜分析的方法。