Detection of tannic acid at trace level in industrial wastewaters using a highly sensitive chemiluminescence method.
A novel flow injection procedure was developed for the determination of tannic acid in industrial wastewaters based on the enhancement by tannic acid of the chemiluminescence from luminol-K3Fe(CN)6-OH- system. The method has the merits of higher sensitivity, higher selectivity, wider linear range, simpler instrumentation. It is applicable for the determination of tannic acid in the range of 3.0 x 10(-10)-1.0 x 10(-7) mol/L with a detection limit of 1.0 x 10(-10) mol/L. The relative standard deviation is 2.7% for the determination of 1.0 x 10(-8) mol/L tannic acid (n = 11). The method has been successfully used to determine tannic acid at trace level in industrial wastewaters from brewery and tannery.
Xie
Chenggen
C
Department of Chemistry, University of Science and Technology of China, 230026 Hefei, Anhui, China.
Cui
Hua
H
D004784:Environmental Monitoring / Q000379:methods*; D005404:Fixatives / Q000032:analysis*; D047348:Hydrolyzable Tannins / Q000032:analysis*; D007220:Industrial Waste; D008163:Luminescent Measurements; D012680:Sensitivity and Specificity; D014873:Water Pollutants / Q000032:analysis*
D005404:Fixatives; D047348:Hydrolyzable Tannins; D007220:Industrial Waste; D014873:Water Pollutants