Acta Phys. -Chim. Sin. ›› 2002, Vol. 18 ›› Issue (12): 1110-1115.doi: 10.3866/PKU.WHXB20021211

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Volumetric Properties of Serine in Glucose-water and Sucrose-water Mixed Solvents at 298.15 K

Li Shu-Qin;Sang Wen-Qiang;Lin Rui-Sen   

  1. Photosynthesis Center, Institute of Botany, Chinese Academy of Sciences, Beijing　100093; Department of Chemistry, Zhejiang University, Hangzhou　310027
  • Received:2002-03-18 Revised:2002-04-22 Published:2002-12-15
  • Contact: Li Shu-Qin E-mail:lishuqin1965@yahoo.com.cn

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Abstract: Densities of serine in glucose-water and sucrose-water mixed solvents have been measured at 298.15 K by an oscillating-tube densimeter. Apparent molar volumes, limiting partial molar volumes and number of hydration of serine have been calculated. The transfer volumes from water to sugar-water mixtures have been obtained and discussed in terms of the structural hydration interaction model. The results obtained have been 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: Serine, Glucose-water mixed solvents, Sucrose-water mixed solvents, 　Limiting partial molar volumes, Structural interaction