Determination of gallic acid by flow injection with electrochemiluminescent detection

Authors
Sun, YG Cui, H Li, YH Li, SF Lin, XQ
Citation
Yg. Sun et al., Determination of gallic acid by flow injection with electrochemiluminescent detection, ANAL LETTER, 33(15), 2000, pp. 3239-3252
Citations number
26
Categorie Soggetti
Chemistry & Analysis","Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ANALYTICAL LETTERS
ISSN journal
00032719 → ACNP
Volume
33
Issue
15
Year of publication
2000
Pages
3239 - 3252
Database
ISI
SICI code
0003-2719(2000)33:15<3239:DOGABF>2.0.ZU;2-5
Abstract
Potential dependent inhibition and enhancement effects of gallic acid on th e electrochemiluminescence (ECL) of luminol in alkaline solutions were foun d. On the basis of the enhancement effect, a flow injection method was deve loped for the determination of gallic acid. The method was simple, convenie nt and sensitive. A detection limit of 1.8x10(-8) mol/L, linear range of 3. 0x10(-8) 1.0x10(-4) mol/L, relative standard deviation of 1.0% for eleven m easurements of 5.0x10(-6) mol/L of gallic acid was found. This method was s uccessfully applied to determine the content of gallic acid in Chinese gall (moshizi).