Thermodynamic Study of the Extraction of Inorganic Mercury Compounds in Fish Species of the International Anzali Wetland, Iran

Inorganic mercury concentration was measured in the tional Anzali Wetland ecosystem in Guilan. In the same muscle tissues of four types of fish in the aquatic intemaecosystem, the northern pike is able to concentrate inorganic mercury in its body more than other fish. In each species, a fish with th...

Full description

Saved in:
Bibliographic Details
Published inChinese journal of chemistry Vol. 29; no. 7; pp. 1341 - 1346
Main Author Astani, Elahe Vahedpour, Morteza Dolatyari, Leila
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.07.2011
WILEY‐VCH Verlag
Wiley Subscription Services, Inc
Subjects
Anzali wetland
Ecosystems
extraction
Fish
mercury
thermochemistry
thermodynamic
Thermodynamics
伊朗
国际
提取过程
无机汞
汞化合物
湿地生态系统
热力学参数
鱼类
Online AccessGet full text

Cover

More Information
Summary:Inorganic mercury concentration was measured in the tional Anzali Wetland ecosystem in Guilan. In the same muscle tissues of four types of fish in the aquatic intemaecosystem, the northern pike is able to concentrate inorganic mercury in its body more than other fish. In each species, a fish with the highest amount of inorganic mercury was selected for determination of thermodynamic parameters of inorganic mercury extraction using calculation of the equilibrium constant and fitting of In Kc versus inverse temperature at the atmospheric pressure. The origins of thermodynamic parameters were discussed. The extraction processes were done in the range of temperatures from 331.15 to 365.15 K and at atmospheric pressure. Results show that the extraction of mercury compounds from SH groups of sulfhydryl proteins in fish muscle tissue is an endothermic process with a positive value for entropy and Gibbs free energy changes at room temperature.
Bibliography:31-1547/O6
Inorganic mercury concentration was measured in the tional Anzali Wetland ecosystem in Guilan. In the same muscle tissues of four types of fish in the aquatic intemaecosystem, the northern pike is able to concentrate inorganic mercury in its body more than other fish. In each species, a fish with the highest amount of inorganic mercury was selected for determination of thermodynamic parameters of inorganic mercury extraction using calculation of the equilibrium constant and fitting of In Kc versus inverse temperature at the atmospheric pressure. The origins of thermodynamic parameters were discussed. The extraction processes were done in the range of temperatures from 331.15 to 365.15 K and at atmospheric pressure. Results show that the extraction of mercury compounds from SH groups of sulfhydryl proteins in fish muscle tissue is an endothermic process with a positive value for entropy and Gibbs free energy changes at room temperature.
mercury, extraction, thermodynamic, Anzali wetland, thermochemistry
Astan, Elahea Vahedpour, Morteza Dolatyari, Leila （ a Chemistry Department, Zanjan University, Zanjan, Iran b Department of Chemistry, Islamic Azad University, Zanjan Branch, P.O. Box 49195-467, Zanjan, Iran）
istex:BACC9139736C42B5C1A014540570C05E9370A357
ark:/67375/WNG-2Q278XQP-Q
ArticleID:CJOC201180252
ISSN:1001-604X
1614-7065
DOI:10.1002/cjoc.201180252