scholarly journals Ion-exclusion/cation-exchange Chromatography with Dual Detection of the Conductivity and Spectrophotometry for the Simultaneous Determination of Common Inorganic Anionic Species and Cations in River and Wastewater

2011 ◽  
Vol 27 (5) ◽  
pp. 499 ◽  
Author(s):  
Nobutake NAKATANI ◽  
Daisuke KOZAKI ◽  
Masanobu MORI ◽  
Kiyoshi HASEBE ◽  
Nobukazu NAKAGOSHI ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Simultaneous Determination ◽  
Exchange Chromatography ◽  
Cation Exchange Chromatography ◽  
Ion Exclusion ◽  
Anionic Species ◽  
Dual Detection

scholarly journals Ion-Exclusion/Cation-Exchange Chromatography Using Dual-Ion-Exchange Groups for Simultaneous Determination of Inorganic Ionic Nutrients in Fertilizer Solution Samples for the Management of Hydroponic Culture

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1847
Author(s):  
Daisuke Kozaki ◽  
Yuki Sago ◽  
Taku Fujiwara ◽  
Masanobu Mori ◽  
Chihiro Kubono ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Cation Exchange ◽  
Simultaneous Determination ◽  
Matrix Effects ◽  
Exchange Chromatography ◽  
Hydroponic Culture ◽  
Cation Exchange Chromatography ◽  
Ion Exclusion ◽  
Fertilizer Solution

In this study, ion-exclusion/cation-exchange chromatography (IEC/CEC) using dual-ion-exchange groups (carboxy and sulfo groups) for the simultaneous determination of anions (SO42−, Cl−, NO3−, and HPO42−) and cations (Na+, NH4+, K+, Mg2+, and Ca2+) was developed. By using the combination of dual-ion-exchange groups, simultaneous separation of inorganic ions with HPO42− was achieved that was impossible by the conventional IEC/CEC based on the single-ion-exchange group (carboxy group). This method was applied to the monitoring of inorganic ionic nutrients in fertilizer solution samples in hydroponic culture. As a result, a higher peak resolution of inorganic anions and cations with phosphate ion using IEC/CEC with dual-ion-exchange groups was achieved in the absence of matrix effects. In addition, the developed method helps to understand the behavior of ionic nutrients in fertilizer solution during hydroponic cultivation and is potentially useful for the individual fertilization of ionic nutrients.

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