University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf

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2-Naphthol

  • IUPAC Name: naphthalen-2-ol
  • Molecular Formula: C10H8O
  • CAS Registry Number: 135-19-3
  • InChI: InChI=1S/C10H8O/c11-10-6-5-8-3-1-2-4-9(8)7-10/h1-7,11H
  • InChI Key: JWAZRIHNYRIHIV-UHFFFAOYSA-N

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Citations 3

"Determination Of Naphthols By Flow Injection Chemiluminescence"
Anal. Chim. Acta 1987 Volume 202, Issue 1 Pages 247-250
S. A. Al-Tamrah, Alan Townshend

Abstract: The sample (20 µL) is injected into a 1 mM KMnO4 carrier stream (pH 1.5; 1.8 mL min-1) and the stream is subsequently mixed with 1 mM Rhodamine B (C. I. Basic Violet 10; 1.8 mL min-1) before measurement of chemiluminescence with use of the flow cell and detector system described previously (cf. Alwarthan and Townshend, Ibid., 1986, 185, 329). Calibration graphs are rectilinear for up to 40 µM-1-naphthol, 50 µM-4-amino-3-hydroxynaphthalene-1-sulfonic acid, 80 µM-2-naphthol, 100 µM-1-amino-2-naphthol hydrochloride and 120 µM-6-hydroxynaphthalene-2-sulfonic acid. For 50 µM-2-naphthol the coefficient of variation was 0.5% (n = 13). The limit of detection was 0.5 µM.
Chemiluminescence Flowcell

"Simultaneous Determination Of Organic Isomers In Mixtures By Flow Injection Analysis With A Diode Array Photodetector"
Analyst 1987 Volume 112, Issue 4 Pages 535-538
Baldomero Bermúdez, Fernando Lázaro, María Dolores Luque de Castro and Miguel Valcárcel

Abstract: Particular isomers in mixtures of 1- and 2-naphthol and mixtures of o-, m- and p-cresol were determined by coupling with diazotized 2-aminobenzothiazole in NaOH medium. Flow injection analysis was used with a Hewlett-Packard 8451A diode-array photodetector. A computer program which monitors absorbance data at several wavelengths per injection allows the selection of the wavelengths which give the smallest error in the determination of a particular isomer. Flow injection analysis enhances the difference in chemical behavior of components of mixtures and the detector emphasizes small differences in monitored signals.
Spectrophotometry Computer Multicomponent Simultaneous analysis

"Flow Injection Analysis Of Phenols Via Bromination And Detection Of Unreacted Bromine At A Platinized Gas Diffusion Membrane Electrode"
Anal. Chem. 1986 Volume 58, Issue 4 Pages 983-985
Antonin Trojanek and Stanley Bruckenstein

Abstract: A portion of the test solution in 1 M H2SO4 is injected into a stream of 0.01 to 1 mM KBr - 50 mM KBrO3, and, after passage through a 60-cm reaction coil at 50°C, unreacted Br is determined amperometrically by reduction at a platinum gas permeable membrane electrode in a cell similar to that described previously (see earlier in this section). A potential of +0.30 V vs. the SCE is applied to the platinum electrode and the supporting electrolyte is 0.1 M H2SO4. The analytical range can be extended by appropriate changes in the concentration. of KBr in the carrier stream. With 0.1 mM KBr, calibration graphs are rectilinear for 10 to 200 ng of resorcinol, 20 to 300 ng of phenol and 30 to 650 ng of 2-naphthol. The reproducibility of production of Br by acidification of the composite reagent is 1.1% (n = 20). Alternatively, the Br can be introduced into the carrier stream by permeation, thus providing a possible means of post-column reaction for the detection of phenols in HPLC.
Amperometry HPLC Electrode Electrode Gas diffusion Heated reaction Post-column derivatization