. . "Toxicita a biodegradabilita odpad\u016F a l\u00E1tek v\u00FDznamn\u00FDch ve vodn\u00EDm prost\u0159ed\u00ED" . "V\u00FDskyt, toxicita a stanoven\u00ED As v biologick\u00E9m materi\u00E1lu" . "1"^^ . . . "0"^^ . "1"^^ . . "0"^^ . "V\u00FDskyt, toxicita a stanoven\u00ED As v biologick\u00E9m materi\u00E1lu"@cs . "2001-08-20+02:00"^^ . "toxicita, As, biologick\u00FD materi\u00E1l"@en . . "701302" . "7"^^ . . "V\u00FDskyt, toxicita a stanoven\u00ED As v biologick\u00E9m materi\u00E1lu" . "27-33" . "RIV/62157124:16270/01:00000475" . "\u010Celechovsk\u00E1, Olga" . . "OCCURENCE, TOXICOLOGY AND DETERMINATION OF ARSENIC IN BIOLOGICAL MATERIALS"@en . . "16270" . . "OCCURENCE, TOXICOLOGY AND DETERMINATION OF ARSENIC IN BIOLOGICAL MATERIALS"@en . "Neuveden" . . "V\u00FDskyt, toxicita a stanoven\u00ED As v biologick\u00E9m materi\u00E1lu"@cs . . . "80-85887-43-6" . . "Arsen se vyskytuje v zemsk\u00E9 k\u016F\u0159e ve slou\u010Denin\u00E1ch s chalkogeny a nach\u00E1z\u00ED se v hornin\u00E1ch, uhl\u00ED a ra\u0161elin\u011B a sedimentech. Do \u017Eivotn\u00EDho prost\u0159ed\u00ED se dost\u00E1v\u00E1 p\u0159irozenou cestou a antropogen\u00ED \u010Dinnost\u00ED. Slou\u010Deniny AsIII jsou mnohem toxi\u010Dt\u011Bj\u0161\u00ED ne\u017E slou\u010Deniny AsV. Ve vod\u011B rozpustn\u00E9 slou\u010Deniny jsou dob\u0159e vst\u0159eb\u00E1v\u00E1ny gastrointenstici\u00E1ln\u00EDm traktem. Arseni\u010Dnany i arsenitany zasahuj\u00ED do bun\u011B\u010Dn\u00E9 produkce energie. Organick\u00E9 slou\u010Deniny arsenu (arsenobetain, arsenocholin , arsenocukry) jsou metabolicky inertn\u00ED a netoxick\u00E9. Celkov\u00FD obsah arsenu v biologick\u00E9m materi\u00E1lu se stanovuje pomoc\u00ED AAS." . "Z(MSM 162700005)" . "RIV/62157124:16270/01:00000475!RIV/2002/MSM/162702/N" . . "[B8D31B95B375]" . "Arsenic is naturally occuring element in the earth\u015B crust that is usually found combined with elements such as oxygen, sulfur in variety of mineral ores. Arsenic also has several major anthropogenic sources including industrial emissions from coal-burning electric generating facilities, releases, as byproduct of nonferrous-metal (gold, silver, copper, lead, uranium, and zinc) mining and smelting operations, releases associated with its production and use as a wood preservative, and application as an insecticide, herbicid and algicide. Compounds containing AsIII are much more toxic that those containing AsV. A water-soluble arsenic are well-absorbed across the gastrointestinal tract. The metabolism of arsenic consist mainly of reduction reaction, which converts AsV to AsIII, and methylation reactions, which convert arsenite to monomethylarsonic acid and dimethylarsenic acid. Organic arsenic compounds, such as arsenobetaine, arsenosugars, and arsenocholine (an organic arsenic compounds found in the edib"@en . "\u010Cesk\u00E9 Bud\u011Bjovice" . . "\u010Cesk\u00E9 Bud\u011Bjovice" .