Iodide in urine

iodide

ALEXYS Anions Analyzer

 

 

 

A method for the determination of iodide is developed using electrochemical detection (ECD) with a silver working electrode (WE). The method consists of reversed phase chromatography using a ion pair and phosphate/citrate buffer at pH 6.5, followed by amperometric detection at 0.15 V. The silver electrode is extremely selective towards iodide, which is detected at a potential close to zero. As a result the sample prep is easy, only a dilution and filtration step of the urine samples. The chromatogram shows a triplicate analysis of a urine sample containing about 2 µmol/L iodide.


Application Notes

Product Flyers

  • 2013 - Flyer AS110 Autosampler
  • 2013 - Flyer DECADE II
  • 2013 - Flyer LC110S Pump
  • 2013 - Flyer OR110 Organizer
  • 2013 - Flyer SenCeII

System configuration

For the analysis of Iodide we selected the Flexcell with silver working electrode. The cell as a virtually maintenance free HyREF reference electrode.

The ALEXYS system comprises the following parts:

  • AS 110 autosampler, cool
  • LC 110S HPLC pump
  • DECADE Lite electrochemical detector
  • Flexcell with Ag WE and HyREF
  • OR 110 organiser rack
  • LC connection kit
  • USB connection kit, 3 portALEXYS with DECADE Elite
  • Clarity data acquisition software

 

 

Part no Description
180.0095C ALEXYS Iodide Analyzer