Preliminary studies of the enhanced electrochemiluminescence of 2,3-diaminonaphthalene in the presence of specific metal ions.
Electrochemiluminescence (ECL) of 200 ppm 2,3-diaminonaphthalene (2,3-DAN) was studied alone and in conjunction with 100 ppm of 34 different metal and non-metal ions and revealed three relatively intense ECL responses from interactions of 2,3-DAN with Au+, Fe+3 and V+5. ECL responses from Cr+6 or Ru+3 with 2,3-DAN were less intense, but noteworthy, as was the coloured fluorescent product of the non-metal ion Se+4 interaction with 2,3-DAN. Several intense 2,3-DAN-metal ion ECL reactions were studied in greater detail and revealed various titration curves with ionic detection limits in the low ppm range, using a fixed level (200 ppm) of 2,3-DAN.
University of Texas Health Sciences Center at San Antonio, Department of Radiology 78284-7800, USA.
J G
JG
Bruno
D015081:2-Naphthylamine / Q000031:analogs & derivatives* / Q000032:analysis; D004563:Electrochemistry / Q000379:methods; D007477:Ions; D008163:Luminescent Measurements; D008670:Metals / Q000032:analysis*; D012680:Sensitivity and Specificity; D013054:Spectrophotometry, Atomic
D007477:Ions; D008670:Metals; C026373:2,3-diaminonaphthalene; D015081:2-Naphthylamine