caa a22 4500 477139353 CHVBK 20180405111728.0 cr unu---uuuuu 170330e19971001xx s 000 0 eng 10.1007/BF02768052 doi (NATIONALLICENCE)springer-10.1007/BF02768052 Interactions of DL-serine and L-serine with NaCl and KCl in aqueous solutions [Elektronische Daten] [Mohammad Khoshkbarchi, Ana Soto-Campos, Juan Vera] The activity coefficients at 25‡C of DL-serine and L-serine in aqueous solutions of NaCl and KC1 were measured. This study examines the effect of the nature of the cation of the electrolyte on the activity coefficients of the optical-isomers of serine in aqueous solutions for molality of serine up to 0.4 and molality of electrolyte up to 1. An electrochemical cell with two ion-selective electrodes, a cation, and an anion ion selective electrode,vs. a double-junction reference electrode was used to measure the activity coefficients of the electrolyte and the results were converted to the activity coefficients of serine in the aqueous electrolyte solution. The comparison of the results obtained for DL- and L-serine indicates that the two optical isomers have identical interactions with electrolytes in aqueous solutions and that for this amino acid the effect of the cation of the electrolyte is not significant. Comparison of these results with previous measurements for DL-alanine in aqueous solutions of the same electrolytes show the notable effect of the backbone of the amino acid. Plenum Publishing Corporation, 1997 Amino acids nationallicence electrolyte solutions nationallicence activity coefficients nationallicence ions nationallicence Khoshkbarchi Mohammad Department of Chemical Engineering, McGill University, H3A 2B2, Montreal, Quebec, Canada aut Soto-Campos Ana Department of Chemical Engineering, McGill University, H3A 2B2, Montreal, Quebec, Canada aut Vera Juan Department of Chemical Engineering, McGill University, H3A 2B2, Montreal, Quebec, Canada aut Journal of Solution Chemistry Springer US 26/10(1997-10-01), 941-955 0095-9782 26:10<941 1997 26 10953 https://doi.org/10.1007/BF02768052 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02768052 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Khoshkbarchi Mohammad Department of Chemical Engineering, McGill University, H3A 2B2, Montreal, Quebec, Canada aut NATIONALLICENCE 700 1- Soto-Campos Ana Department of Chemical Engineering, McGill University, H3A 2B2, Montreal, Quebec, Canada aut NATIONALLICENCE 700 1- Vera Juan Department of Chemical Engineering, McGill University, H3A 2B2, Montreal, Quebec, Canada aut NATIONALLICENCE 773 0- Journal of Solution Chemistry Springer US 26/10(1997-10-01), 941-955 0095-9782 26:10<941 1997 26 10953 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer