Bivariate calibration as an alternative for zero-crossing technique in the resolution of binary mixtures by derivative spectrophotometry

Analytical Letters

Volumn 34, Issue 14, 2001, Pages 2563-2583

  Lopez Martinez L ^a   Lopez de Alba P L ^a   Cerda Martin V ^a  

^a UNIVERSITY OF GUANAJUATO   (Mexico)

Author keywords

Bivariate calibration; Derivative spectrophotometry; Zero crossing technique

Indexed keywords

ACETYLSALICYLIC ACID; ALLURA RED AC; CAFFEINE; ERYTHROSINE; FOOD DYE; RIBOFLAVIN; SUNSET YELLOW; TARTRAZINE;

ACCURACY; ALGORITHM; ANALYSIS; ARTICLE; CALIBRATION; DRUG DETERMINATION; INTERMETHOD COMPARISON; SPECTROPHOTOMETRY; TECHNIQUE; VALIDATION PROCESS;

EID: 0035191532     PISSN: 00032719     EISSN: None     Source Type: Journal    
DOI: 10.1081/AL-100107536     Document Type: Article

References (18)

1. Derivative UV-visible spectrophotometric determination of nickel in alloys and biological samples after preconcentration with the ion pair of 2-nitroso-1-naphthol-4-sulfonic acid and tetradecyldimethylbenzylammonium chloride onto microcrystalline naphthalene or by a column method
2. Determination of omeprazole in pharmaceuticals by derivative spectroscopy
3. Quantitation of tryptophan and tyrosine residues in proteins by fourth-eerivative spectroscopy
4. Sequential second-derivative spectroscopy of cocaine and adulterants in street drug samples. Part I: Cocaine, procaine and lidocaine
5. Application of internal standard for derivative-dpectrophotometric determination of azinphos-methyl in commercial formulations
6. Multivariate prediction by using conventional and derivative partial least-squares statistics in a complex chemical system. Ternary metals mixture resolution
7. Simultaneous determination of iron(III), molybdenum(VI) and vanadium(V) by UV-visible molecular-absorption spectroscopy: Comparison of the results obtained using derivative dpectrophotometry and partial least-squares (1 and 2) methods
8. Determination of nitrofurans in formulations and pig feed by derivative spectrometry
9. Resolution of a multicomponent polycyclic aromatic hydrocarbon system in micellar media by linear variable angle fluorescence applying distinct chemometric techniques
10. Enhanced spectrophotometric determination of chromium(VI) with diphenylcarbazide using internal standard and derivative spectrophotometry
11. Derivative spectroscopy: Theoretical aspects
12. Signal-to-noise ratio in higher-order derivative spectrometry
13. The resolution of dye binary mixtures by bivariate calibration using spectrophotometric data
14. Nuevo método espectrofotométrico de resolución de mezclas binarias
15. Application of the bivariate spectrophotometric method for the determination of metronidazole, furazolidone and di-iodohydroxyquinoline in pharmaceutical formulations
16. Extraction of sunset yellow and tartrazine by ion-pair formation with adogen-464 and their simultaneous determination by bivariate calibration and derivative spectrophotometry