"Electrochemical determination of cysteine-containing biomolecules by means of catalytic reactions on a mercury electrode" . . "14310" . . . . . . . . "431 - 431" . "1"^^ . "RIV/00216224:14310/04:00011235!RIV08-AV0-14310___" . . "[5FBFD2E3DA67]" . . . "Electrochemical determination of cysteine-containing biomolecules by means of catalytic reactions on a mercury electrode"@en . "P(GA203/02/0422), P(IAA1163201)" . . . "Thessaloniki, Greece" . . "Electrochemical determination of cysteine-containing biomolecules by means of catalytic reactions on a mercury electrode" . "Thessaloniki, Greece" . "The group cysteine-containing peptides (metallothioneines, phytochelatins, and glutathione) plays an important role in active homeostasis and detoxification of metals in animal, plant, and/or microorganism cells. In this study we describe a novel approach to electroanalysis of cys-containing peptides and proteins. This approach is based on catalytic processes (presodium wave, peak H, Brdicka current) proceeding at negative potentials (ca. 1.8 V, Ag/AgCl/3M KCl) on the hanging mercury drop electrode (HMDE). A presodium wave is current-potential response accompanied with catalytic hydrogen evolution from aqueous solutions in the presence of proteins. It was found that the sulfhydryl(SH) groups in proteins are responsible for presodium catalytic processes. The highest sensitivity in the determination was observed with derivative chronopotentiometric stripping analysis (CPSA), which monitored the catalytic signal known as peak H. The determination of the low content of Cys-peptides was successfully perfor"@en . "Vacek, Jan" . "Jelen, Franti\u0161ek" . . "4"^^ . "Kizek, Ren\u00E9" . "Elektrochemick\u00E9 stanoven\u00ED biomolekul obsahuj\u00EDc\u00EDch cystein pomoc\u00ED katalytick\u00FDch reakc\u00ED na rtuov\u00E9 elektrod."@cs . . "metallothioneines; phytochelatins; glutathione; mercury electrode; catalytic reactions; Brdicka reaction; peak H"@en . "RIV/00216224:14310/04:00011235" . . "Book of Abstracts - 55th Annual Meeting of the ISE" . "Trnkov\u00E1, Libu\u0161e" . "Elektrochemick\u00E9 stanoven\u00ED biomolekul obsahuj\u00EDc\u00EDch cystein pomoc\u00ED katalytick\u00FDch reakc\u00ED na rtuov\u00E9 elektrod"@cs . . "562506" . . "3"^^ . "2004-02-19+01:00"^^ . "The group cysteine-containing peptides (metallothioneines, phytochelatins, and glutathione) plays an important role in active homeostasis and detoxification of metals in animal, plant, and/or microorganism cells. In this study we describe a novel approach to electroanalysis of cys-containing peptides and proteins. This approach is based on catalytic processes (presodium wave, peak H, Brdicka current) proceeding at negative potentials (ca. 1.8 V, Ag/AgCl/3M KCl) on the hanging mercury drop electrode (HMDE). A presodium wave is current-potential response accompanied with catalytic hydrogen evolution from aqueous solutions in the presence of proteins. It was found that the sulfhydryl(SH) groups in proteins are responsible for presodium catalytic processes. The highest sensitivity in the determination was observed with derivative chronopotentiometric stripping analysis (CPSA), which monitored the catalytic signal known as peak H. The determination of the low content of Cys-peptides was successfully perfor" . "Electrochemical determination of cysteine-containing biomolecules by means of catalytic reactions on a mercury electrode"@en . . "Elektrochemick\u00E9 stanoven\u00ED biomolekul obsahuj\u00EDc\u00EDch cystein pomoc\u00ED katalytick\u00FDch reakc\u00ED na rtuov\u00E9 elektrod"@cs . . . . "International Society of Electrochemistry" .