El Shafei Gamal M. S., Moussa Nabawaya A.
Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt
J Colloid Interface Sci. 2001 Jun 1;238(1):160-166. doi: 10.1006/jcis.2001.7474.
Samples of synthetic hydroxyapatite, Ca(10)(PO(4))(6)(OH)(2), obtained by wet method and calcined at 1173 K in air were used in an adsorption study of some essential amino acids, mainly histidine, methionine, and tryptophan. Adsorption isotherms were obtained using aqueous solutions of concentration range 2.7x10(-2)-1.3x10(-3) M at 303, 318, and 343 K, under near neutral conditions. The mode of adsorption was studied using IR spectroscopy. The results are discussed in terms of the dependence of the adsorption process both on the functional groups on the hydroxyapatite and on the solution chemistry of the aqueous amino acids solutions. Copyright 2001 Academic Press.
通过湿法制备并在空气中于1173 K煅烧得到的合成羟基磷灰石Ca(10)(PO(4))(6)(OH)(2)样品，用于一些必需氨基酸（主要是组氨酸、蛋氨酸和色氨酸）的吸附研究。在接近中性条件下，于303 K、318 K和343 K使用浓度范围为2.7×10(-2)-1.3×10(-3) M的水溶液获得吸附等温线。使用红外光谱研究吸附模式。根据吸附过程对羟基磷灰石上的官能团以及氨基酸水溶液的溶液化学的依赖性来讨论结果。版权所有2001年学术出版社。
