“…The molar absorption coefficients of L and Ln-L complexes were obtained as 2.46 10 4 cm 21 mol 21 dm 3 at 469 nm. It is noted that larger coefficients and the longer absorption wavelengths were observed than with other polyaminocarboxylate reagents used in previously reported CE experiments, such as EDTA [9,[23][24][25][26], trans-1,2-diaminocyclohexane-N,N,N',N'-tetraacetic acid (CyDTA) [27], nitrilotriacetic acid [28], triethylenetetramine-N,N,N',N'',N''',N'''-hexaacetic acid (TTHA) [29] and 8-amino-2-[(2-amino-5-methylphenoxy)methyl]-6-methoxyquinoline-N,N,N',N'-tetraacetate [14], which made the absorbance CE detection more sensitive and selective. …”