Olsen, R.S. and Watanabe, F.S. (1957) A Method to Determine a Phosphorous Adsorption Maximum of Soils as Measured by Langmuir Isotherms. Soil Science Society of America Journal, 21, 144-149.
http://dx.doi.org/10.2136/sssaj1957.03615995002100020004x

has been cited by the following article:

• TITLE: Adsorption Behavior of Acid-Leached Clays in Bleaching of Oil

  AUTHORS: I. Z. Mukasa-Tebandeke, P. J. M. Ssebuwufu, S. A. Nyanzi, G. W. Nyakairu, M. Ntale, F. Lugolobi, Schumann Andreas

  KEYWORDS: Adsorption Isotherms, Bleaching, Acid Activation, Clays

  JOURNAL NAME: American Journal of Analytical Chemistry, Vol.6 No.6, May 5, 2015

  ABSTRACT: The available data have shown that acid-leached clays had sites for adsorption of impurities in oils. Data obtained on residual impurities in cotton and sunflower-seed oils bleached with the same clay materials produced linear Langmuir and Freundlich isotherms. The increase in constant, k with increase in both temperature of thermal activation and concentration of acid used to leach the clay, suggests that bleaching efficiency increased. The value of n decreased with increase in temperature of activation and concentration of acid used to leach the clay suggesting that bleaching capacity increased. The mineral compositions of the clays influenced their surface, structural and bleaching properties.