1998
DOI: 10.1007/s002160051116
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Iodine determination in biological materials

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Cited by 108 publications
(96 citation statements)
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“…9 Carbon content in digests was analyzed by ICP OES to evaluate digestion efficiency. 23,24 Argon 99.998% (White Martins -Praxair, São Paulo, Brazil) was used for plasma generation, nebulization and auxiliary gas, as well as for pressurizing the chamber of microwave oven. In addition, argon was also used for removing carbonaceous gases dissolved into digests prior the determination of carbon.…”
Section: Instrumentationmentioning
confidence: 99%
“…9 Carbon content in digests was analyzed by ICP OES to evaluate digestion efficiency. 23,24 Argon 99.998% (White Martins -Praxair, São Paulo, Brazil) was used for plasma generation, nebulization and auxiliary gas, as well as for pressurizing the chamber of microwave oven. In addition, argon was also used for removing carbonaceous gases dissolved into digests prior the determination of carbon.…”
Section: Instrumentationmentioning
confidence: 99%
“…20,21 Sample preparation is usually the bottleneck in halogen determination by ICP-MS, due to memory effects caused by high volatility of halogens in acidic solutions. [22][23][24] Therefore, alkaline fusion, 20 dilution or dispersion in alkaline solution, distillation (for fluorine), combustion in bombs, 25 microwave-induced combustion (MIC) 9,26-29 and pyrohydrolysis 7,17,[30][31][32] are used for sample preparation.…”
Section: Introductionmentioning
confidence: 99%
“…20,21 Sample preparation is usually the bottleneck in halogen determination by ICP-MS, due to memory effects caused by high volatility of halogens in acidic solutions. [22][23][24] Therefore, alkaline fusion, 20 dilution or dispersion in alkaline solution, distillation (for fluorine), combustion in bombs, 25 microwave-induced combustion (MIC) 9,26-29 and pyrohydrolysis 7,17,[30][31][32] are used for sample preparation.Pyrohydrolysis is a simple alternative for decomposition of organic 7,19,31,33 and inorganic 34-36 materials when halogens determination is intended. The main advantages are the possibility of matrix separation and the use of a diluted alkaline solution for analytes absorbing.…”
mentioning
confidence: 99%
“…Essa reação catalítica é conhecida como reação de Sandell-Kolthoff e por muitos anos representou o estado da arte para a determinação de iodo em materiais biológicos. 5,6 Além de procedimentos espectrofotométricos bem estabelecidos, 4 algumas técnicas têm sido aplicadas para a determinação de iodo em amostras variadas, incluindo espectrometria de absorção atômica com chama (FAAS, Flame Atomic Absorption Spectrometry), 7 aná-lise por ativação neutrônica (NAA, Neutron Activation Analysis), 8 fluorescência de raios-X com reflexão total (TXRF, Total reflection X-ray Fluorescence), 9 espectrometria de massa acoplada ao plasma indutivo (ICP-MS, Inductively Coupled Plasma Mass Spectrometry) e espectrometria de emissão óptica com plasma acoplado indutivamente (ICP OES, ICP Optical Emission Spectrometry).…”
Section: Introductionunclassified
“…Essa reação catalítica é conhecida como reação de Sandell-Kolthoff e por muitos anos representou o estado da arte para a determinação de iodo em materiais biológicos. 5,6 Além de procedimentos espectrofotométricos bem estabelecidos, 4 algumas técnicas têm sido aplicadas para a determinação de iodo em amostras variadas, incluindo espectrometria de absorção atômica com chama (FAAS, Flame Atomic Absorption Spectrometry), 7 aná-lise por ativação neutrônica (NAA, Neutron Activation Analysis), O desenvolvimento de métodos para a determinação de iodo em alimentos e no sal de cozinha, aliado à robustez do ICP OES é importante para análises de rotina. Entretanto, poucos trabalhos na literatura relatam a determinação de não metais por ICP OES.…”
unclassified