全部

1·Inorganic Mass Spectrometry is preferably used each time extremely low concentrations and isotopic abundance are to be determined.

每当测定非常低的浓度和同位素丰度时总是首先使用无机质谱法。

2·The measurement methods of uranium concentrations in irradiated fuels by isotopic dilution mass spectrometry are described.

介绍了用同位素稀释质谱法测量辐照元件铀含量的方法。

3·Double spike isotopic dating method of lead isotope is one of the dating ways of lead isotope, its aim is to correct mass differentiation effect and enhance the precision of measure.

铅同位素“双稀释剂”同位素定年法是当前应用较广的一种铅同位素定年方法。双同位素稀释法的目的在于校正质量鉴别效应，提高测定精度。

4·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型螯合树脂珠作为质谱样品载体，对铀同位素进行热电离质谱分析的方法。

5·The isotopic effect suggests another important property, ia addition to the magic numbers, of mass spectra of the sputtered ion cluster.

这是溅射离子簇质谱中继“幻数”结构的另一个重要性质。