DETERMINATION OF BINARY-MIXTURES OF SULFONAMIDES BY PHOTOCHEMICALLY INDUCED FLUORESCENCE USING PARTIAL LEAST-SQUARES MULTIVARIATE CALIBRATION

被引：32

作者：

PENA, MS ^{[1
]}

DELAPENA, AM ^{[1
]}

SALINAS, F ^{[1
]}

MAHEDERO, MC ^{[1
]}

AARON, JJ ^{[1
]}

机构：

[1] UNIV PARIS 07,INST TOPOL & DYNAM SYST,CNRS,URA 34,F-75005 PARIS,FRANCE

来源：

ANALYST | 1994年 / 119卷 / 06期

关键词：

SULFONAMIDE MIXTURES ANALYSIS; PHOTOCHEMICALLY INDUCED FLUORESCENCE; PARTIAL LEAST SQUARES; MULTIVARIATE METHOD;

D O I：

10.1039/an9941901177

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Binary mixtures of sulfamethazine (SMTZ), sulfamerazine (SMRZ) and sulfadiazine (SDZ) were determined by room-temperature photochemically induced fluorescence. The resolution was accomplished by partial least squares (PLS) multivariate calibration. The fluorescence intensity of these heterocyclic sulfonamides was measured after ultraviolet irradiation for 12 min. The photoproducts obtained showed analytically useful fluorescence signals when an excitation wavelength of 284 nm was used. PLS was applied with previous optimization of the calibration matrix by the PLS-1 method. The multivariate factor analysis based calibration method allowed the simultaneous determination of SMTZ SMRZ, SMTZ-SDZ and SMRZ-SDZ mixtures.

引用

页码：1177 / 1181

页数：5

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