THE PROTONATION CONSTANTS OF GLYCINE IN NACL AT 25-DEGREES-C BASED ON THE PITZER AND SCATCHARD MODELS DATA-ANALYSIS BY RIDGE-REGRESSION

被引：22

作者：

FIOL, S ^{[1
]}

BRANDARIZ, I ^{[1
]}

HERRERO, R ^{[1
]}

VILARINO, T ^{[1
]}

DEVICENTE, MS ^{[1
]}

机构：

[1] UNIV A CORUNA, FAC CIENCIAS, DEPT QUIM FUNDAMENTAL & IND, CAMPUS ZAPATEIRA S-N, E-15071 LA CORUNA, SPAIN

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1994年 / 98卷 / 02期

关键词：

IONIC STRENGTH DEPENDENCE; IONIZATION; PITZER AND SCATCHARD COEFFICIENTS; PROTONATION CONSTANTS; RIDGE REGRESSION;

D O I：

10.1002/bbpc.19940980205

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have potentiometrically determined the protonation constants of glycine in NaCl solutions of variable ionic strength. The data thus obtained have been analysed by using the interaction models of Scatchard and Pitzer. The presence of multicollinearity among the explanatory variables of the model has been evidenced through the coefficients of the correlation matrix and the variance inflation factor (VIF). We have applied the ridge regression (RR) to address the problem arising from multicollinearity and the results are critically compared with those obtained by ordinary least squares regression (OLS).

引用

页码：164 / 171

页数：8

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