scholarly journals Determination of Sugars in Beet and Cane Final Molasses by Ion Chromatography: Collaborative Study

1997 ◽  
Vol 80 (3) ◽  
pp. 603-610
Author(s):  
Kevin Schäffler ◽  
C M J Day-Lewis ◽  
Margaret Clarke ◽  
Jill Jekot ◽  
E Rearick ◽  
...  
Keyword(s):  
Ion Chromatography ◽  
High Performance ◽  
Chromatographic Method ◽  
Collaborative Study ◽  
Amperometric Detection ◽  
Pulsed Amperometric Detection ◽  
Cane Molasses ◽  
Beet Molasses ◽  
Repeatability And Reproducibility

Abstract A collaborative study of an ion chromatographic tech’ nique of high-performance anion-exchange with pulsed amperometric detection has been completed. The procedure was used to determine sucrose, glucose, and fructose in 8 cane molasses samples and sucrose in 5 beet molasses samples. Eleven laboratories took part in the study. Repeatability and reproducibility values for sucrose, glucose, and fructose were excellent for both types of samples. All criteria for accepting the method for sugars in both beet and cane molasses were met. The ion chromatographic method for determination of sugars in beet and cane final molasses has been adopted first action by AOAC INTERNATIONAL.

scholarly journals Determination of cyanide in bamboo shoots by microdiffusion combined with ion chromatography–pulsed amperometric detection

2018 ◽  
Vol 5 (4) ◽  
pp. 172128 ◽  
Author(s):  
Ming Ding ◽  
Kailiang Wang
Keyword(s):  
Ion Chromatography ◽  
Limit Of Detection ◽  
Correlation Coefficients ◽  
Amperometric Detection ◽  
High Sensitivity ◽  
Practical Method ◽  
Pulsed Amperometric Detection ◽  
Bamboo Shoots ◽  
Relative Standard

A practical method for the determination of cyanide in bamboo shoots has been developed using microdiffusion preparation integrated with ion chromatography–pulsed amperometric detection (IC-PAD). Cyanide was released from bamboo shoots after Conway cell microdiffusion, and then analysed by IC-PAD. In comparison with the previously reported methods, derivatization and ion-pairing agent addition were not required in this proposed microdiffusion combined with IC-PAD method. The microdiffusion parameters were optimized including hydrolysis systems, temperature, time, and so on. Under the optimum conditions, the linear range of the calibration curve for cyanide was 0.2–200.0 µg kg −1 with satisfactory correlation coefficients of 0.9996 and the limit of detection was 0.2 µg kg −1 ( S/N  = 3). The spiked recovery range was from 92.8 to 98.6%. The intra-day and inter-day relative standard deviations of cyanide were 2.7–14.9% and 3.0–18.3%, respectively. This method was proved to be convenient in operation with high sensitivity, precision and accuracy, and was successfully applied in the determination of cyanide in bamboo shoot samples.

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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