Development and Characterization of Microfabricated Disposable Gold Working Electrodes for High-Performance Ion Chromatography and Integrated Pulsed Amperometric Detection

2003 ◽  
Vol 75 (3) ◽  
pp. 572-579 ◽  
Author(s):  
Jun Cheng ◽  
Petr Jandik ◽  
Nebojsa Avdalovic
Keyword(s):  
Ion Chromatography ◽  
High Performance ◽  
Amperometric Detection ◽  
Pulsed Amperometric Detection ◽  
Integrated Pulsed Amperometric Detection

The Ion Chromatography Intergrated Amperometry Method to Detectsulfonamides

2013 ◽  
Vol 726-731 ◽  
pp. 1544-1547
Author(s):  
Wei De Lu ◽  
Zhan Qing Ma ◽  
Jun Feng Rao
Keyword(s):  
Ion Chromatography ◽  
High Performance ◽  
Exchange Resin ◽  
Reference Electrode ◽  
Amperometric Detection ◽  
Solution Concentration ◽  
Pulsed Amperometric Detection ◽  
Naoh Solution ◽  
Food And Feed ◽  
First Time

In this study, the high performance ion chromatography integrated pulsed amperometric detection (HPIC-IPAD) was appliedfor the first time to detect 10 sulfonamides. In this experiment,we used Dionex AS18 (250mm×2mm) and AG18 (50mm×2mm) columnsfilled with an anion exchange resin, with 14 mmol / L NaOH solution concentration. The Analysis temperature was 30 ° C, the flow rate was 0.25 mL / min, and the injection volume was 10 μL. The detection was through pulsed amperometric detection cell with Au electrode and reference electrode pH-Ag/AgCl as working electrodes. Take the standard stock solution compounding 0.06,0.15,0.30,1.5,3.0 mg / L standard solutions respectively,build linear regression on chromatographic peak area as Y and analyte mass concentration of as X (mg / L). In the range of 0.06-3.0 mg / L, the 10 sulfonamides response appeared a linear relationship (R> 0.9989). This method can be considered for the detection of trace sulfonamides substances in cosmetics, food, and feed.

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