Volumetric Properties of Alanine in Aqueous Glucose and Sucrose Solutions at 298.15K

Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (8): 1485.

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Volumetric Properties of Alanine in Aqueous Glucose and Sucrose Solutions at 298.15K

LI Shu-Qin¹, SANG Wen-Qiang², LIN Rui-Sen²

1. Photosynthesis Center, Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China;
2. Department of Chemistry, Zhejiang University, Hangzhou 310027, China

Received:2002-03-07 Online:2003-08-24 Published:2003-08-24

Abstract

Abstract: Densities of L-alanine in aqueous glucose and sucrose solutions were measured at 298.15 Kby an oscillating-tube densimeter.Apparent molar volumes Vφ, limiting partial molar volumes V^0φand number of hydration of alanine Nh were calculated.The transfer volumes from water to sugar-water mixtures were obtained and discussed in terms of the structural hydration interaction model.The results obtained were compared with that in glycerol-water and ethylene glycol-water mixtures.It is concluded that the magnitude of enhancement effect on volume is related to the number of OH groups.

Key words: Alanine, Aqueous glucose solutions, Aqueous sucrose solutions, Limiting partial molar volumes, StructuraLInteraction

CLC Number:

O645

TrendMD:

LI Shu-Qin, SANG Wen-Qiang, LIN Rui-Sen . Volumetric Properties of Alanine in Aqueous Glucose and Sucrose Solutions at 298.15K[J]. Chem. J. Chinese Universities, 2003, 24(8): 1485.

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Volumetric Properties of Alanine in Aqueous Glucose and Sucrose Solutions at 298.15K

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