Effects of Cross Linking on the Chromatographic Nitrogen Isotope Separation  

作　　者：Xunyue Liu Xingcheng Ding Tatsuya Suzuki Masao Nomura Yasuhiko Fujii 

机构地区：[1]不详

出　　处：《American Journal of Analytical Chemistry》2011年第2期104-108,共5页美国分析化学（英文）

摘　　要：The effects of cross linking with porous cation exchange resin were studied for nitrogen isotope separation. The displacement chromatography was conducted by the resin with cross linking rang from 20% to 40%. A sharp adsorbed ammonium band was maintained for each operation. Enriched 15N isotopes with 0.93% were obtained by 20% cross linking resin and two meters chromatographic operation which started from the natural abundance of ammonium molecule. The effect of cross linking percentage on the height equivalent to a theoretical plate (HETP) was evaluated in the present work and the HETP value is proportional to the cross linking percentage. HETP value of 0.036 cm was obtained at the present system by using 20% cross linking resin.The effects of cross linking with porous cation exchange resin were studied for nitrogen isotope separation. The displacement chromatography was conducted by the resin with cross linking rang from 20% to 40%. A sharp adsorbed ammonium band was maintained for each operation. Enriched 15N isotopes with 0.93% were obtained by 20% cross linking resin and two meters chromatographic operation which started from the natural abundance of ammonium molecule. The effect of cross linking percentage on the height equivalent to a theoretical plate (HETP) was evaluated in the present work and the HETP value is proportional to the cross linking percentage. HETP value of 0.036 cm was obtained at the present system by using 20% cross linking resin.

关 键 词：Cross LINKING CHROMATOGRAPHY Nitrogen ISOTOPE Ion EXCHANGE RESIN 

分 类 号：O6[理学—化学]