Chem. J. Chinese Universities ›› 1991, Vol. 12 ›› Issue (5): 610.

• Articles • Previous Articles     Next Articles

Determination of Rare Earth Element Yttrium by Electrogenerated Chemiluminescence of ADPD

An Jing-ru, Lin Jin-ming, Xie Zeng-hong   

  1. Department of Chemistry, Fuzliau University, Fuzhou, 350002
  • Received:1989-09-18 Online:1991-05-24 Published:1991-05-24

Abstract: A sensitive method for determination of trace element yttrium (Ⅲ) in a buffer medium of Na2CO3-NaHCO3-(NH4)2C2O4(pH 10.27) is reported based on the electrochemiluminescence of the new reagent 5-(p-aminophenylazo)-2, 3-dihydro-1, 4-phthalazine-l, 4-dione(ADPD). The detection limit of yttrium is 0. 002 ppm,and linear calibration range extends from 0. 01 to 0. 6 ppm. The influence factors and mechanism of the ECL of Y(Ⅲ) catalyzing ADPD emission process are discussed.

Key words: Electrochemiluminescence, ADPD, Yttrium

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