摘要
氢的每种同位素都有自旋异构体。由于氢分子的两个原子核自旋有平行与反平行两种取向,因此存在正氢(o-H_2)与仲氢(p-H_2)两种异构体。 由于正—仲氢的性能差异甚微,因此用一般色谱法分析是很困难的。有人曾用分子筛或Al_2O_3色谱柱在低温(77°K)下可将正仲氢分离。但其分离性能不稳定,并产生较大的分析误差。
The analysis of para-hydrogen was qualitatively and quantitatively performed by gas chromatography at ambient temperature without separating para-hydrogen from ortho-hydrogen. The analysis is simple and fast. The fluctuation of peak height is ±lmm and the analytical error is less than 1%.
出处
《色谱》
CAS
CSCD
北大核心
1989年第1期26-27,共2页
Chinese Journal of Chromatography
