A sensitive inhibition chemiluminescence method for the determination of trace tannic acid using the reaction of luminol–hydrogen peroxide catalysed by tetrasulphonated manganese phthalocyanine

Abstract

A novel CL method for the determination of tannic acid (TA) was established based on TA inhibition of the chemiluminescence (CL) emission of the luminol-hydrogen peroxide CL system catalysed by tetrasulphonated manganese phthalocyanine (MnTSPc) under alkaline conditions. The peak height is proportional to the natural logarithm of concentration of TA in the range 1.0 x 10(-7)-3.0 x 10(-10) mol/L with a detection limit of 5.6 x 10(-11) mol/L and the relative standard deviation was 2.5% for the determination of 1.0 x 10(-8) mol/L TA (n = 11). The proposed method has been successfully applied to the determination of TA in Chinese gall and industrial wastewater.

Determination of tannic acid in industrial wastewater based on chemiluminescence system of KIO4–H2O2–Tween40

“…At present, determination of tannic acid by CL methods is mainly based on CL emission from the luminol reaction, such as luminol-K 3 Fe(CN) 6 , [8] luminal-KIO 4 , [9] luminol-KIO 4 -Mn 2+ [10] and luminal-H 2 O 2 -Cu 2+ . [11] Yang et al [12] reported that tannic acid can inhibit CL from luminal-hydrogen peroxide catalyzed by tetrasulfonated manganese phthalocyanine, which was applicable for the detection of trace tannic acid in Chinese gall and industrial wastewater. In this work, the effect of tannic acid on kinetic curves of the CL systems of KIO 4 -H 2 O 2 and KIO 4 -H 2 O 2 -Tween40 was systematically studied.…”

Chemiluminescent assay of phenol in wastewater using HRP-catalysed luminol oxidation with and without enhancers

“…One of the most efficient CL systems is a luminolhydrogen peroxide mixture. [6][7][8] Oxidation of luminol with hydrogen peroxide produces 3-aminophthalate ions in an excited state (3-aminophthalate*), which emits light upon relaxation to the ground state. This reaction proceeds effectively under alkaline conditions.…”

Flow-injection Post-chemiluminescence Determination of Furazolidone in Animal Feeds

“…Since the main difficulty in the determination of FZD is its instability due to sensitivity to light [12], there is now an urgent need for a rapid, simple, and sensitive determination method for FZD at low concentrations in animal feed, in order to satisfy needs on feed control. Chemiluminescence (CL) analysis has received much attention for the analysis of organic species in a variety of fields for its high sensitivity, wide dynamic range and inexpensive instrumentation [13][14]. However, the CL signal of normal CL systems containing FZD was relatively weak.…”