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- W4250990902 abstract "Abstract The effect of pH on inhibition and enhancement of luminol‐H 2 O 2 ‐CO 2+ chemiluminescence (CL) by 18 phenolic compounds and 20 amino acids was studied. It was found that most of the tested compounds showed an inhibiting effect of lower pH and an enhancing effect at higher pH. At a midrange pH, for some phenolic compounds with two ortho ‐position ‐OH, both an inhibiting and an enhancing peak were simultaneously observed. UV‐visible spectra of the tested phenolic compounds at different pH values were studied. The mechanism for CL inhibition and enhancement was proposed. It is likely that the competition of the ‐OH or the ‐NH 2 group and other reducing groups in the molecules with luminol for O 2 * − led to the CL inhibition. A reaction of ‐COO − and quinone or ketone formed by phenolic compounds at higher pH via deprotonation with O 2 * − also resulted in the CL enhancement." @default.
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- W4250990902 date "2004-03-01" @default.
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- W4250990902 title "Effect of pH on inhibition and enhancement of luminol-H2O2-Co2+ chemiluminescence by phenolic compounds and amino acids" @default.
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- W4250990902 doi "https://doi.org/10.1111/j.1751-1097.2004.tb00390.x" @default.
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