Four-Component Determinations Using Phase-Resolved Fluorescence Spectroscopy

Frank V. Bright; Linda B. McGown

doi:10.1021/ac00279a018

Four-Component Determinations Using Phase-Resolved Fluorescence Spectroscopy

Frank V. Bright
, Linda B. McGown

Chemistry

University at Buffalo

Oklahoma State University

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

A method for the determination of the individual components in a quaternary system of anthracene derivatives is presented. The method employs phase-resolved fluorescence spectroscopy (PRFS) In conjunction with wavelength selection for the simultaneous determination of anthracene, 1-chloroanthracene, 2-chloroanthracene, and 9-chloroanthracene in mixtures containing these four species. The dèsign and lise of a least-squares routine for the calculation of the amplitude and phase ϕ of the cosine curve that describes the phase-resolved fluorescence Intensity (PRFI) as a function of detector phase angle (ϕ_D) for each of the Individual components are discussed. The fitting of PRFI vs. ϕ_D for mixtures is carried out by using a fifth-order polynomial routine. The results of the least-squares and fifth-order polynomial analyses are combined to generate a series of simultaneous equations which are “solved” for the analytical concentrations of the four components in each mixture by using a Gausslan-Newton iterative procedure written in Apple BASIC.

Original language	English
Pages (from-to)	55-59
Number of pages	5
Journal	Analytical Chemistry
Volume	57
Issue number	1
DOIs	https://doi.org/10.1021/ac00279a018
State	Published - Jan 1 1985

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title = "Four-Component Determinations Using Phase-Resolved Fluorescence Spectroscopy",

abstract = "A method for the determination of the individual components in a quaternary system of anthracene derivatives is presented. The method employs phase-resolved fluorescence spectroscopy (PRFS) In conjunction with wavelength selection for the simultaneous determination of anthracene, 1-chloroanthracene, 2-chloroanthracene, and 9-chloroanthracene in mixtures containing these four species. The d{\`e}sign and lise of a least-squares routine for the calculation of the amplitude and phase ϕ of the cosine curve that describes the phase-resolved fluorescence Intensity (PRFI) as a function of detector phase angle (ϕD) for each of the Individual components are discussed. The fitting of PRFI vs. ϕD for mixtures is carried out by using a fifth-order polynomial routine. The results of the least-squares and fifth-order polynomial analyses are combined to generate a series of simultaneous equations which are “solved” for the analytical concentrations of the four components in each mixture by using a Gausslan-Newton iterative procedure written in Apple BASIC.",

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T1 - Four-Component Determinations Using Phase-Resolved Fluorescence Spectroscopy

AU - Bright, Frank V.

AU - McGown, Linda B.

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N2 - A method for the determination of the individual components in a quaternary system of anthracene derivatives is presented. The method employs phase-resolved fluorescence spectroscopy (PRFS) In conjunction with wavelength selection for the simultaneous determination of anthracene, 1-chloroanthracene, 2-chloroanthracene, and 9-chloroanthracene in mixtures containing these four species. The dèsign and lise of a least-squares routine for the calculation of the amplitude and phase ϕ of the cosine curve that describes the phase-resolved fluorescence Intensity (PRFI) as a function of detector phase angle (ϕD) for each of the Individual components are discussed. The fitting of PRFI vs. ϕD for mixtures is carried out by using a fifth-order polynomial routine. The results of the least-squares and fifth-order polynomial analyses are combined to generate a series of simultaneous equations which are “solved” for the analytical concentrations of the four components in each mixture by using a Gausslan-Newton iterative procedure written in Apple BASIC.

AB - A method for the determination of the individual components in a quaternary system of anthracene derivatives is presented. The method employs phase-resolved fluorescence spectroscopy (PRFS) In conjunction with wavelength selection for the simultaneous determination of anthracene, 1-chloroanthracene, 2-chloroanthracene, and 9-chloroanthracene in mixtures containing these four species. The dèsign and lise of a least-squares routine for the calculation of the amplitude and phase ϕ of the cosine curve that describes the phase-resolved fluorescence Intensity (PRFI) as a function of detector phase angle (ϕD) for each of the Individual components are discussed. The fitting of PRFI vs. ϕD for mixtures is carried out by using a fifth-order polynomial routine. The results of the least-squares and fifth-order polynomial analyses are combined to generate a series of simultaneous equations which are “solved” for the analytical concentrations of the four components in each mixture by using a Gausslan-Newton iterative procedure written in Apple BASIC.

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DO - 10.1021/ac00279a018

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JO - Analytical Chemistry

JF - Analytical Chemistry

IS - 1

ER -

Four-Component Determinations Using Phase-Resolved Fluorescence Spectroscopy

Abstract

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