Use of triethylenetetraminehexaacetic Acid combined with field-amplified sample injection in speciation analysis by capillary electrophoresis.


Simultaneous speciation of lead, mercury, and selenium was carried out by capillary electrophoresis. The method used a polyaminocarboxylic acid, triethylenetetraminehexaacetic acid (TTHA), as an off-column complexing agent to form UV-absorbing complexes with the analytes for direct UV detection. TTHA was also added to the background electrolyte for the on… (More)
DOI: 10.1021/ac971368q


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