SIMULTANEOUS DETERMINATION OF IRON AND COPPER BY THIRD-DERIVATIVE SOLID-PHASE SPECTROPHOTOMETRY

REFERENCES

• Molina-Díaz , A. , Pascual-Reguera , M.I. , Liñan-Verganzones , L. , Fernandez de Cordova , M.L. and Capitan-Vallvey , L.F. 1994 . First-derivative solid-phase spectrophotometric determination of Molybdenum at the ng mL−1 level . Talanta , 43 : 185 – 191 .
   Web of Science ®Google Scholar
• Toral , M.I. , Richter , P. and Rodríguez , C. 1997 . Simultaneous Determination of copper and iron by second derivative spectrophotometry using mixtures of ligans . Talanta , 45 : 147 – 153 .
   PubMed Web of Science ®Google Scholar
• Capitán , F. , Sánchez-Palencia , G. , Navalón , A. , Capitan-Vallvey , L.F. and Vilchez , J.L. 1992 . Simultaneous determination of molybdenum and tungsten by first-derivative synchonous solid-phase spectrofluorimetry . Anal. Chim. Acta , 259 : 345 – 353 .
   Web of Science ®Google Scholar
• Vilchez , J.L. , Avidad , R. , Rohand , J. , Navalón , A. and Capitan-Vallvey , L.F. 1993 . Determination of morestan residues in waters by solid-phase spectrofluorimetry . Anal. Chim. Acta , 282 : 445 – 449 .
   Web of Science ®Google Scholar
• Ogorevc , B. , Cai , Z. and Grabec , I. 1995 . Determination of traces of copper by anodic-stripping voltammetry after its preconcentration via an ion-exchange route at carbon paste electrodes modified with vermiculite . Anal. Chim. Acta , 305 : 176 – 182 .
   Web of Science ®Google Scholar
• Richter , P. , Toral , M.I. , Tapia , A.E. and Fuenzalida , E. 1997 . Flow injection photometric determination of zinc and copper with zincon based on the variation of the stability of the complexs with pH . Analyst , 122 : 1045 – 1048 .
   PubMed Web of Science ®Google Scholar
• Capitan-Garcia , F. , Checa , R. , Avidad , R. and Capitan-Vallvey , L.F. 1995 . Determination of iron at ng/mL level by solid phase spectrophotometry after preconcentration on cation exchange filters . Talanta , 42 : 711 – 715 .
   PubMed Web of Science ®Google Scholar
• Toral , M.I. and Bermejo-Barrera , A. 1989 . Spectrophotometric and derivative spectrophotometric of the iron(II)-TPTZ-picrate ion association complex . Talanta , 11 : 1069 – 1074 .
   Google Scholar
• Toral , M.I. , Richter , P. and Muñoz , B. 1995 . Derivative spectrophotometric method for copper determination . Environ. Monit. Assess. , 38 : 1 – 10 .
   PubMed Web of Science ®Google Scholar
• Campbell , M.J. and Dabis , H.T. 1989 . Accurate and precise determination of lead isotope ratios in clinical and environmental samples using inductively coupled plasma-source mass spectrometry . J. Anal. At. Spectrom. , 4 : 235 – 236 .
   Web of Science ®Google Scholar
• Ali , A.E. and Bacso , J. 1996 . Investigation of different types of filters for atmospheric trace elements analysis by three analytical techniques . J. Radioanal. Nucl. Ch. , 209 : 147 – 155 .
   Web of Science ®Google Scholar
• Kolesov , G.M. and Sapozhinikow , D.Y. 1995 . Neutron-activation determination of noble metals in samples of terrestrial and cosmic origin using microfire assay concentration . Analyst , 120 : 1461 – 1464 .
   Web of Science ®Google Scholar
• Masamba , W.R. , Smith , B.W. , Krupa , R.J. and Winefordner , J.D. 1988 . Atomic and ionic fluorescence in an inductively coupled plasma using hollow-cathode lamps pulsed at high currents as excitation sources . Appl. Spectrosc. , 42 : 872 – 878 .
   Web of Science ®Google Scholar
• Toral , M.I. , Richter , P. , Tapia , A.E. and Hernández , J. 1999 . Simultaneous determination of iron and ruthenium as ternary complexes by extractive second derivative spectrophotometry . Talanta , 50 : 183 – 191 .
   PubMed Web of Science ®Google Scholar
• Toral , M.I. , Richter , P. , Lara , N. , Escudero , M.T. and Soto , C. 2000 . Simultaneous determination of platinum and palladium by second derivative spectrophotometry using 3-(2′-Triazolylazo)-2,6-diaminopyridine as chromophore ligand . Anal. Lett. , 33 : 93 – 109 .
   Web of Science ®Google Scholar
• Savitzky , A. and Golay , M.J. 1964 . Smooting and differentiation of data by simplified least squares procedures . Anal. Chem. , 36 : 1627 – 1639 .
   Web of Science ®Google Scholar