Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 50,
  • Issue 4,
  • pp. 436-443
  • (1996)

Interaction of Fulvic Acids with Al(III) Studied by Self-Modeling Curve Resolution of Second-Derivative Synchronous Fluorescence Spectra

Not Accessible

Your library or personal account may give you access

Abstract

The interaction of Al(III) with two samples of fulvic acids (fua), extracted from materials present in a pinewood soil (fua2 from the upper soil horizon, or leaf litter, and fua3 from lower soil horizons), was followed by synchronous fluorescence (SyF) spectroscopy at pH 4. The variations observed in the inverted second-derivative spectral data were analyzed by SIMPLISMA, a self-modeling curve resolution technique. Three binding sites were detected for each fua sample, and their spectra and SyF intensity profiles were obtained. Conditional stability constants for coordination of one binding site of each fua and Al(III) were obtained (log values): fua2, 5.65(15); fua3, 4.64(2). The experimental and data analysis methodologies were validated by analysis of data obtained for salicylic acid under the same conditions. The log value found for its conditional stability constant for Al(III) coordination at pH 4 was 4.34(15).

PDF Article
More Like This
Fluorescence lifetime evaluation of whole soils from the Amazon rainforest

Gustavo Nicolodelli, Amanda Maria Tadini, Marcelo Saito Nogueira, Sebastião Pratavieira, Stephane Mounier, Jose Luis Clabel Huaman, Cléber Hilário dos Santos, Célia Regina Montes, and Débora Marcondes Bastos Pereira Milori
Appl. Opt. 56(24) 6936-6941 (2017)

Dissolved organic matter in bovine slaughterhouse wastewater using fluorescence spectroscopy associated with CP/PARAFAC and PCA methods

Murillo Cruz Matos, Amanda Maria Tadini, Fernando Rodrigues da Conceição, Amilcar Machulek Junior, Carlos Renato Menegatti, Stéphane Mounier, Anderson Rodrigues Lima Caires, and Gustavo Nicolodelli
Appl. Opt. 61(22) 6590-6598 (2022)

Two-dimensional multiwavelength fluorescence spectra of dipicolinic acid and calcium dipicolinate

Sivananthan Sarasanandarajah, Joseph Kunnil, Burt V. Bronk, and Lou Reinisch
Appl. Opt. 44(7) 1182-1187 (2005)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved