H. Goto et al., Post-column detection of isoluminol-labelled bile acids on bariumperoxide as chemiluminescence reaction media, BUNSEKI KAG, 48(10), 1999, pp. 945-948
An isoluminol chemiluminescent(CL) reactin on bariumperoxide (BaO2) was app
lied for the detection of bile acids after high performance liquid chromato
graphic (HPLC) separation. N-(4-Aminobutyl)-N-ethylisoluminol (ABEI) was us
ed as a pre-labelling reagent for bile acids. In the proposed CL detection
system, no CL reagents were required, because superoxide existed on the bas
ic surface of BaO2. Ursodeoxycholic acid was detected at levels as low as 1
0 pmol, more sensitive than that in HPLC-UV methods.