Complexation of Ag+ Ions with L-Cysteine

被引：21

作者：

Alekseev, V. G. ^{[1
]}

Semenov, A. N. ^{[1
]}

Pakhomov, P. M. ^{[1
]}

机构：

[1] Tver State Univ, Tver 170100, Russia

来源：

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2012年 / 57卷 / 07期

关键词：

AMPEROMETRIC-TITRATION; SULFHYDRYL-GROUPS; SILVER NITRATE; AMINO-ACIDS; CONSTANTS; ELECTRODE;

D O I：

10.1134/S0036023612070029

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The complexation of Ag+ ions with L-cysteine anions (Cys(2-)) at 25 degrees C was studied potentiometrically against the background of 0.1 M KNO3. The AgCys(-) (log beta = 11.14 +/- 0.10), AgHCys (log beta = 20.77 +/- 0.06), Ag(2)Cys (log beta = 20.32 +/- 0.17), and Ag(2)HCys(+) (log beta = 27.28 +/- 0.12) soluble complexes were found to be formed.

引用

收藏

页码：1041 / 1044

页数：4

相关论文

共 26 条

[1] EFFECT OF THE STRUCTURE OF SOME MERCAPTANS ON THEIR AMPEROMETRIC TITRATION WITH SILVER NITRATE [J].

AIBARA, K ;

HERREID, EO ;

WILSON, HK .

JOURNAL OF DAIRY SCIENCE, 1960, 43 (12) :1736-1743

[2] STUDY OF SOME SILVER-THIOL COMPLEXES AND POLYMERS - STOICHIOMETRY AND OPTICAL EFFECTS [J].

ANDERSSON, LO .

JOURNAL OF POLYMER SCIENCE PART A-1-POLYMER CHEMISTRY, 1972, 10 (07) :1963-+

[3]

Bell R. A., 1997, P 5 INT C TRANSP FAT, P10

[4]

Bell RA, 1999, ENVIRON TOXICOL CHEM, V18, P9, DOI [10.1897/1551-5028(1999)018<0009:SCAGOS>2.3.CO

[5]

2, 10.1002/etc.5620180103]

[6] CRITICAL EVALUTION OF THE STABILITY-CONSTANTS OF METAL-COMPLEXES OF AMINO-ACIDS WITH POLAR SIDE-CHAINS [J].

BERTHON, G .

PURE AND APPLIED CHEMISTRY, 1995, 67 (07) :1117-1240

[7] RECOMMENDED PROCEDURE FOR TESTING THE POTENTIOMETRIC APPARATUS AND TECHNIQUE FOR THE PH-METRIC MEASUREMENT OF METAL-COMPLEX EQUILIBRIUM-CONSTANTS [J].

BRAIBANTI, A ;

OSTACOLI, G ;

PAOLETTI, P ;

PETTIT, LD ;

SAMMARTANO, S .

PURE AND APPLIED CHEMISTRY, 1987, 59 (12) :1721-1728

[8] THE AMPEROMETRIC TITRATION OF SULPHYDRYL GROUPS AT A ROTATING PLATINUM ELECTRODE [J].

BURTON, H .

BIOCHIMICA ET BIOPHYSICA ACTA, 1958, 29 (01) :193-201

[9]

Clement J L, 1994, Met Based Drugs, V1, P467, DOI 10.1155/MBD.1994.467

[10] APPARENT MOLAR IONIC PRODUCTS OF WATER IN AQUEOUS POTASSIUM-NITRATE SOLUTIONS AND CALIBRATION OF GLASS ELECTRODE AS A WIDE-RANGE PROTON CONCENTRATION PROBE [J].

JAMESON, RF ;

WILSON, MF .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1972, (23) :2607-2610