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8705950 
Journal Article 
Determination of Elemental Iodine by Gas Chromatography with Electron Capture Detection 
Fernandez, SJ; Murphy, LP; Rankin, RA 
1984 
Yes 
Analytical Chemistry
ISSN: 0003-2700
EISSN: 1520-6882 
56 
8 
1285-1288 
English 
A gas chromatography/electron capture detector (GC/ECD) technique has been developed to determine elemental iodine In toluene and cyclohexane solvents. The retention index based on the alkyI Iodide and n -paraffin series was determined. Sufficient resolution was obtained to resolve I2 from alkyl iodides. A detection limit of 39 ng of I2 was obtained. A dissociative electron capture mechanism was proposed for the ECD response to I2- Radiotracer studies established the I2 was transmitted through the column without conversion to an organic Iodide. The utility of the developed technique was demonstrated on a Agl in NH4OH mass spectrometry standard solution. An accuracy of 23% and a precision of 12% were demonstrated. 1984, American Chemical Society. All rights reserved.