Chemical species of Al in a gypsum-treated Kitakami Andosol

Direct analysis of Al adsorbed on cation exchange resin using27Al NMR

Mitsuru Toma, Syuntaro Hiradate, Masahiko Saigusa

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

To examine the possibility that the Al13 polymer ([A104Al12(OH)24(H20)12]7+) could be formed in soils after gypsum application, an analytical method using a cation exchange resin and27Al nuclear magnetic resonance (NMR) spectroscopy was applied to gypsum-treated Kitakami Andosol (fine, mixed, mesic, Andic Dystrochrept). The NMR spectra of the cation exchange resins which retained artificially synthesized hydroxy-AI, showed two broad peaks at 0 and 63 ppm. These results indicated that monomer and/or dimer Al and Al13 polymers adsorbed on the cation exchange resin could be detected with27Al NMR. The amount of polymer Al increased by gypsum application in the Kitakami soil. The NMR spectrum of this resin showed only one peak at 0 ppm indicating that the polymer Al formed in the gypsum treated Kitakami soil was not the Al13 polymer.

Original languageEnglish
Pages (from-to)279-285
Number of pages7
JournalSoil Science and Plant Nutrition
Volume45
Issue number2
DOIs
Publication statusPublished - Jan 1 1999

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cation exchange resins
Andosol
chemical speciation
gypsum
nuclear magnetic resonance
nuclear magnetic resonance spectroscopy
resin
ion exchange
polymers
polymer
soil
soil treatment
resins
analytical methods
analytical method
spectroscopy
analysis
chemical
Andosols

All Science Journal Classification (ASJC) codes

  • Soil Science
  • Plant Science

Cite this

Chemical species of Al in a gypsum-treated Kitakami Andosol : Direct analysis of Al adsorbed on cation exchange resin using27Al NMR. / Toma, Mitsuru; Hiradate, Syuntaro; Saigusa, Masahiko.

In: Soil Science and Plant Nutrition, Vol. 45, No. 2, 01.01.1999, p. 279-285.

Research output: Contribution to journalArticle

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