Antocianinas em extratos vegetais: aplicação em titulação ácido-base e identificação via cromatografia líquida/espectrometria de massas
| dc.creator | Guimarães, Wesson | |
| dc.creator | Alves, Maria Isabel Ribeiro | |
| dc.creator | Antoniosi Filho, Nelson Roberto | |
| dc.date.accessioned | 2018-04-04T14:21:36Z | |
| dc.date.available | 2018-04-04T14:21:36Z | |
| dc.date.issued | 2012 | |
| dc.description.abstract | Anthocyanins extracted from picao, quaresmeira, petunia, flamboyant, purple ipe, lobeira, pata de vaca, jaboticaba, purple cabbage and jambul were evaluated as natural acid-base indicators. Anthocyanins in extracts were identified using HPLC/MS. Clear, rapid change in color at final-point titration was observed for extracts but only picao showed strong change in pH. Indirect determination of carbonate in limestone using a natural indicator was performed and results compared with phenolphthalein indicator and potentiometer titration. Optimal results were obtained with picao but other extracts showed good accuracy and precision. | pt_BR |
| dc.identifier.citation | GUIMARÃES, Wesson; ALVES, Maria Isabel Ribeiro; ANTONIOSI FILHO, Nelson Roberto. Antocianinas em extratos vegetais: aplicação em titulação ácido-base e identificação via cromatografia líquida/espectrometria de massas. Química Nova, São Paulo, v. 35, n. 8, p. 1673-1679, 2012. | pt_BR |
| dc.identifier.doi | 10.1590/S0100-40422012000800030 | |
| dc.identifier.issn | 0100-4042 | |
| dc.identifier.issn | e- 1678-7064 | |
| dc.identifier.uri | http://repositorio.bc.ufg.br/handle/ri/14348 | |
| dc.language.iso | por | pt_BR |
| dc.publisher.country | Brasil | pt_BR |
| dc.publisher.department | Instituto de Química - IQ (RG) | pt_BR |
| dc.rights | Acesso Aberto | pt_BR |
| dc.subject | PH | pt_BR |
| dc.subject | Anthocyanins | pt_BR |
| dc.subject | HPLC | pt_BR |
| dc.title | Antocianinas em extratos vegetais: aplicação em titulação ácido-base e identificação via cromatografia líquida/espectrometria de massas | pt_BR |
| dc.title.alternative | Anthocyanins in natural extracts: application in acid-base titration and identification by liquid chromatography/mass spectrometry | pt_BR |
| dc.type | Artigo | pt_BR |