"Stanoven\u00ED jodid\u016F s vyu\u017Eit\u00EDm kombinovan\u00E9ho mechanismu akumulace na uhl\u00EDkov\u00E9 pastov\u00E9 elektrod\u011B metodou stripping voltametrie"@cs . . "Konvalina, Ji\u0159\u00ED" . "[D8966C24EB3C]" . "435-441" . "2"^^ . "DE - Spolkov\u00E1 republika N\u011Bmecko" . "6" . "10" . . . "785339" . . . . "Stripping voltammetric determination of iodide with synergistic accumulation at a carbon paste electrode" . . "P(OE37/1)" . "Carbon paste electrodes (CPEs) of various compositions were studied to elucidate the stripping voltammetric behavior of iodide. At an accumulation potential of +0.7 V (vs. Ag/AgCl), the CPE containing tricresyl phosphate as a pasting liquid was able to preconcetrate iodide effectively via ion-pairing reaction followed by oxidation to iodine and its extraction onto pasting liquid. In a supporting electrolyte containing 0.5 M NaCl and 0.1 M HCl, the reduction signal was proportional to iodide concentration from 5 x 10(-6) to 5 x 10(-7) mol/L with a detection limit of approximately 2.5 x 10(-7) mol/L (accumulation for 5 min). Other halides and pseudohalides did not interfere with the determination, except for a high concentration excess of thiocyanate and bromide (100:1). The method was tested on model solutions and was applied to determine total iodine in samples of table salts and mineral water. The results were compared to those obtained by reference methods." . . "stripping voltametric determination of iodide; carbon paste electrode"@en . "Stanoven\u00ED jodid\u016F s vyu\u017Eit\u00EDm kombinovan\u00E9ho mechanismu akumulace na uhl\u00EDkov\u00E9 pastov\u00E9 elektrod\u011B metodou stripping voltametrie"@cs . "\u0160vancara, Ivan" . "Stripping voltammetric determination of iodide with synergistic accumulation at a carbon paste electrode"@en . "Electroanalysis" . . "25310" . "Carbon paste electrodes (CPEs) of various compositions were studied to elucidate the stripping voltammetric behavior of iodide. At an accumulation potential of +0.7 V (vs. Ag/AgCl), the CPE containing tricresyl phosphate as a pasting liquid was able to preconcetrate iodide effectively via ion-pairing reaction followed by oxidation to iodine and its extraction onto pasting liquid. In a supporting electrolyte containing 0.5 M NaCl and 0.1 M HCl, the reduction signal was proportional to iodide concentration from 5 x 10(-6) to 5 x 10(-7) mol/L with a detection limit of approximately 2.5 x 10(-7) mol/L (accumulation for 5 min). Other halides and pseudohalides did not interfere with the determination, except for a high concentration excess of thiocyanate and bromide (100:1). The method was tested on model solutions and was applied to determine total iodine in samples of table salts and mineral water. The results were compared to those obtained by reference methods."@en . . . "Schachl, K." . "1040-0397" . "RIV/00216275:25310/98:00003868" . "Kalcher, K." . "RIV/00216275:25310/98:00003868!RIV06-MSM-25310___" . "7"^^ . "Stripping voltammetric determination of iodide with synergistic accumulation at a carbon paste electrode" . . "5"^^ . . "Stanoven\u00ED jodid\u016F s vyu\u017Eit\u00EDm kombinovan\u00E9ho mechanismu akumulace na uhl\u00EDkov\u00E9 pastov\u00E9 elektrod\u011B metodou stripping voltametrie"@cs . "Stripping voltammetric determination of iodide with synergistic accumulation at a carbon paste electrode"@en . . . "Vyt\u0159as, Karel" .