Simple and sensitive detection cell for capillary electrophoresis-chemiluminescence analysis using peroxyoxalate reagent

Simple and conveniens batch-type detection cells were developed for the cap illary electrophoresis with chemiluminescence detection using peroxyoxalate reagent. A fused-silica capillary was directly inserted into the cell, and a grounding electrode was also done into it. The cell could be easily comb ined with capillary electrophoresis without any complex construction and ex pensive implements. A mixture of Dnsyl-amino acids was satisfactorily separ ated. Dnsyl-Trp was detected with the detection limit of 1 x 10(-8) M by us e of a glass cuvette-type cell.