REFERENCES
- Taher , M. A. , Dehzoei , A. M. , Puri , B. K. and Puri , S. 1998 . 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 . Anal. Chim. Acta , 367 : 55 – 61 .
- Ozaltin , N. and Kocer , A. 1997 . Determination of Omeprazole in Pharmaceuticals by Derivative Spectroscopy . J. Pharm. Biomed. Anal. , 16 : 337 – 342 .
- Bray , M. R. , Carriere , A. D. and Clarke , A. J. 1994 . Quantitation of Tryptophan and Tyrosine Residues in Proteins by Fourth-Eerivative Spectroscopy . Anal. Biochem. , 221 : 278 – 284 .
- Cruz , A. , López-Rivadulla , M. , Bermejo , A. M. , Sánchez , I. and Fernández , P. 1994 . Sequential Second-Derivative Spectroscopy of Cocaine and Adulterants in Street Drug Samples. Part I: cocaine, procaine and lidocaine . Anal. Lett. , 27 : 2663 – 2675 .
- Wrobel-Zasada , K. , Wrobel-Kaczmarczyk , K. , López-de-Alba , P. L. , López-Martínez , L. and García-López , M. A. 1996 . Application of Internal Standard for Derivative-Dpectrophotometric Determination of Azinphos-Methyl in Commercial Formulations . Talanta , 43 : 1055 – 1060 .
- Salinas , F. , Espinosa-Mansilla , A. and López-de-Alba , P. L. 1995 . Multivariate Prediction by using Conventional and Derivative Partial Least-Squares Statistics in a Complex Chemical System. Ternary Metals Mixture Resolution . Anal. Lett. , 28 : 193 – 205 .
- Salinas , F. , Espinosa-Mansilla , A. and López-de-Alba , PL. 1994 . 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 . Analysis , 22 : 188 – 195 .
- Galeano-Díaz , T. , López-Martínez , L. and Salinas , F. 1994 . Determination of Nitrofurans in Formulations and Pig feed by Derivative Spectrometry . Analysis , 22 : 202 – 209 .
- Amador-Hernández , J. , Cladera , A. , Estela , J. M. , López-de-Alba , P. L. and Cerdà , V. 1998 . Resolution of a Multicomponent Polycyclic Aromatic Hydrocarbon System in Micellar Media by Linear Variable Angle Fluorescence Applying Distinct Chemometric Techniques . Analyst , 123 : 2235 – 2241 .
- Wrobel , K. , Wrobel , K. , López-de-Alba , P. L. and López-Martínez , L. 1997 . Enhanced Spectrophotometric Determination of Chromium(VI) with Diphenylcarbazide using Internal Standard and Derivative Spectrophotometry . Talanta , 44 : 2129 – 2136 .
- O'Haver , T. C. 1982 . Derivative Spectroscopy: Theoretical Aspects . Anal. Proc. , 19 : 22 – 28 .
- O'Haver , T. C. and Begley , T. 1981 . Signal-to-noise Ratio in Higher-Order Derivative Spectrometry . Anal. Chem. , 53 : 1876 – 1878 .
- López-de-Alba , P. L. , López-Martínez , L. , Wrobel-Kaczmarczyk , K. , Wrobel-Zasada , K. and Amador-Hernandez , J. 1996 . The Resolution of Dye Binary Mixtures by Bivariate Calibration using Spectrophotometric Data . Anal. Lett. , 29 : 487 – 503 .
- López-de-Alba , P. L. , López-Martínez , L. , Wrobel-Kaczmarczyk , K. , Wrobel-Zasada , K. and Amador-Hernandez , J. 1996 . Nuevo Método Espectrofotométrico de Resolución de Mezclas Binarias . Bol. Soc. Chilena Quim. , 41 : 111 – 119 .
- López-de-Alba , P. L. , Wrobel , K. , López-Martínez , L. , Wrobel , K. , Yepez-Murrieta , M. L. and Amador-Hernandez , J. 1997 . Application of the Bivariate Spectrophotometric Method for the Determination of Metronidazole, Furazolidone and Di-iodohydroxyquinoline in Pharmaceutical Formulations . J. Pharm. Biomed. Anal. , 16 : 349 – 355 .
- López-de-Alba , P. L. , López-Martínez , L. , Michelini-Rodriguez , L. I. , Wrobel , K. and Amador-Hernandez , J. 1997 . Extraction of Sunset Yellow and tartrazine by Ion-Pair Formation with Adogen-464 and their Simultaneous Determination by Bivariate Calibration and Derivative Spectrophotometry . Analyst , 122 : 1575 – 1579 .
- Massart , D. L. , Vandeginste , B. G.M. , Deming , S. N. , Michotte , Y. and Kaufman , L. 1988 . Chemometrics: a textbook 41–57 – 119–126 . Amsterdam : Elsevier . 242–253
- Savitzky , A. and Golay , M. J.E. 1964 . Anal. Chem. , 36 : 1627