Highly sensitive determination of hydrazine ion by ion-exclusion chromatography with ion-exchange enhancement of conductivity detection

Journal of Chromatography. a
Masanobu MoriWenzhi Hu

Abstract

An ion-exclusion chromatography method with ion-exchange enhancement of conductivity was developed for the selective separation and sensitive determination of hydrazine ion from alkali/alkaline earth metal cations and ammonium ion. Hydrazine ion was separated by ion-exclusion/penetration effect from other cations on a weakly basic anion-exchange column in the OH- form (TSKgel DEAE-5PW). Moreover, two different ion-exchange resin columns were inserted between the separating column and conductimetric detector in order to improve the sensitivity of hydrazine ion. The first enhancement column packed with a strongly basic anion-exchange resin in the SO4(2-) form (TSKgel SAX) for hydrazine ion can convert from N2H5OH to (N2H5)2SO4. Moreover, the second enhancement column packed with a strongly acidic cation-change resin in the H+ form (TSKgel SCX) can convert to H2SO4. As a result, the sensitivity of hydrazine ion using two conductivity enhancement columns could be 26.8-times greater than using the separating column alone. This method was effectiveness also for the enhancement of ammonium ion (6.1-times) and sodium ion (1.2-times). The calibration graph of hydrazine ion detected as H2SO4 was linear over the concentration range of 0.0...Continue Reading

Citations

Oct 22, 2013·Journal of Hazardous Materials·M U Anu PrathapRajendra Srivastava
Sep 15, 2012·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Nobutake NakataniKazuhiko Tanaka
Apr 15, 2016·Analytical Chemistry·Hongzhu LiaoPurnendu K Dasgupta
Nov 25, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Jing-Wang CuiGuang-Hua Cui
Nov 12, 2019·Journal of Chromatographic Science·Mehran SharifiPeter Joza
Apr 7, 2014·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Mingda SunYaoxian Li
Feb 20, 2015·Environmental Monitoring and Assessment·Sayed Zia MohammadiElina Bani Asadi
Oct 20, 2020·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Kazuhiko Tanaka, Masanobu Mori

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