Effect of the ionic strength on the acid-base titration curves of a soil fulvic acid

被引：2

作者：

Ramos, A ^{[1
]}

López, S ^{[1
]}

López, R ^{[1
]}

Fiol, S ^{[1
]}

Arce, F ^{[1
]}

Antelo, JM ^{[1
]}

机构：

[1] Univ Santiago de Compostela, Fac Quim, Dept Quim Fis, E-15706 Santiago, Spain

来源：

ANALUSIS | 1999年 / 27卷 / 05期

关键词：

D O I：

10.1051/analusis:1999270414

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Potentiometric titrations of a soil extracted fulvic acid solutions were carried out varying the initial concentration and the background electrolyte (KNO3) concentration in the range from 5 10(-3) M to 1.0 M. The mastercurve approach was tried, but the data did not merge into a single curve, so the CA and LOGA-1 methods were applied to the experimental Q(pH) curves to analyse the ionic strength effect over the fulvic acid ionization.

引用

页码：414 / 417

页数：4

共 50 条

[1] THE PREPARATION OF ACID-BASE TITRATION CURVES
MCCLENDON, M
JOURNAL OF CHEMICAL EDUCATION, 1984, 61 (11) : 1022 - 1024
[2] ACID-BASE TITRATION AND DISTRIBUTION CURVES
WASER, J
JOURNAL OF CHEMICAL EDUCATION, 1967, 44 (05) : 274 - &
[3] SIMULATION OF ACID-BASE TITRATION CURVES
ROZYCKI, C
CHEMIA ANALITYCZNA, 1988, 33 (06): : 963 - 975
[4] ACID-BASE TITRATION CURVES FOR POLYMERIC ACIDS
MEITES, L
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1972, : 20 - &
[5] SOME REMARKS ON ACID-BASE TITRATION CURVES
MICHALOWSKI, T
CHEMIA ANALITYCZNA, 1981, 26 (05): : 799 - 813
[6] Approximation of acid-base titration curves by logarithmic functions
Kropotov, VA
JOURNAL OF ANALYTICAL CHEMISTRY, 1998, 53 (07) : 638 - 640
[7] Modelling of acid-base titration curves of mineral assemblages
Stamberg, Karel
Drtinova, Barbora
Filipska, Helena
Vopalka, Dusan
OPEN CHEMISTRY, 2016, 14 (01): : 316 - 323
[8] Acid-base titration curves of solid humic acids
Janos, Pavel
Krizenecka, Sylvie
Madronova, Libuse
REACTIVE & FUNCTIONAL POLYMERS, 2008, 68 (01): : 242 - 247
[9] ACID-BASE TITRATION CURVES IN DISPROPORTIONATING REDOX SYSTEMS
MICHALOWSKI, T
LESIAK, A
JOURNAL OF CHEMICAL EDUCATION, 1994, 71 (08) : 632 - 636
[10] COMPUTER PROGRAM FOR CALCULATION OF ACID-BASE TITRATION CURVES
EMERY, AR
JOURNAL OF CHEMICAL EDUCATION, 1965, 42 (03) : 131 - &

← 1 2 3 4 5 →