Determination of Iron in Solutions with the Ferric±Xylenol Orange Complex (Record no. 44450)

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control field MX-MdCICY
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control field 20250625140627.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-10211
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 250602s9999 xx |||||s2 |||| ||und|d
245 10 - TITLE STATEMENT
Title Determination of Iron in Solutions with the Ferric±Xylenol Orange Complex
490 0# - SERIES STATEMENT
Volume/sequential designation Analytical BioChemistry, 273(2), p.143-148, 1999
520 3# - SUMMARY, ETC.
Summary, etc. Formation of a colored complex between ferric iron and xylenol orange has been used in a variety of applications, but there is disagreement about the number of complexes that exist, their stoichiometry, pH dependence, solvent effects, and other parameters. In this study we investigated the use of the complex to measure micromolar concentrations of iron in aqueous and alcohol solutions. The results show that the optimum wavelength for the measurement is 560 nm, that only a 1:1 ferric:xylenol orange complex forms, and that its molar absorption coefficient is affected by the solvent, the source of the xylenol orange, and the pH. Under the recommended conditions, formation of the complex is completed in less than 5 min and it is stable in several solvents. Its molar absorption coefficient in 25 mM H2SO4 is 20,100 or 14,500 M21 cm21, depending on the source of the dye. A recommended protocol for the use of the assay is given.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Gay, C.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Collins, J.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Gebicki, J.M.
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Uniform Resource Identifier <a href="https://drive.google.com/file/d/1C5iywWFdmliFrgB_6BxoV323QD7yY513/view?usp=drivesdk">https://drive.google.com/file/d/1C5iywWFdmliFrgB_6BxoV323QD7yY513/view?usp=drivesdk</a>
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-10211 25.06.2025 25.06.2025 Documentos solicitados