2019
DOI: 10.1016/j.microc.2019.104024
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Investigating erythrosine B as a fluorimetric probe for the determination of benzimidazole drugs via facile complexation reaction

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Cited by 32 publications
(36 citation statements)
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“…Hence the protonated cationic form of DRH is dominant at a pH lower than 6.3. ER is a diprotic weak acid (H2L) with pKa1 = 3.9 and pKa2 = 5.0 in aqueous solution [27].…”
Section: Resultsmentioning
confidence: 99%
“…Hence the protonated cationic form of DRH is dominant at a pH lower than 6.3. ER is a diprotic weak acid (H2L) with pKa1 = 3.9 and pKa2 = 5.0 in aqueous solution [27].…”
Section: Resultsmentioning
confidence: 99%
“…28,30,38 A Teorell-Stenhagen controlling solution with a wide pH range (2.0-12.0). 22 A McIlvaine buffer solution (pH 2.2-8.0) is composed of two separate solutions; 0.2 M citric acid and 0.1 M Na 2 HPO 4 . 29 All used substances were of analytical or pharmaceutical grade and were used in their original state without further purication.…”
Section: Solvents and Buffer Solutionsmentioning
confidence: 99%
“…The peak inherent uorescence of xanthene-based dyes (erythrosine, uorescein, and eosin) has been gured out to be suppressed following complexation with many nitrogen-containing drugs. 22,23 The designed spectroscopic approach in this research relies on an ion-pair association complex in a moderately acidic medium between MTX (which has two basic centers) and eosin Y reagent to produce a binary complex (Scheme 1).…”
Section: Mechanism and Pathway Of Complex Formationmentioning
confidence: 99%
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