indigo-carmine has been researched along with magnesium-trisilicate* in 1 studies
1 other study(ies) available for indigo-carmine and magnesium-trisilicate
| Article | Year |
|---|---|
Redox tuning and species distribution in Maya Blue-type materials: a reassessment.
Maya Blue-type specimens prepared from indigo (1 wt %) plus kaolinite, montmorillonite, palygorskite, sepiolite, and silicalite are studied. Liquid chromatography with diode array detection, ultra-performance liquid chromatography coupled with mass spectrometry, and pyrolysis-silylation gas chromatography-mass spectrometry analyses of the extracts from these specimens combined with spectral and solid-state voltammetry, electrochemical impedance spectroscopy, and scanning electrochemical microscopy techniques provide evidence for the presence of a significant amount of dehydroindigo and isatin accompanying indigo and other minority organic compounds in all samples. Solid-state electrochemistry data permits the estimatation of indigo loading in archeological Maya Blue, which is in the range of 0.2 to 1.5 wt %. These results support a view of 'genuine' Maya Blue-type materials as complex polyfunctional organic-inorganic hybrids. Topics: Bentonite; Chromatography, High Pressure Liquid; Chromatography, Liquid; Electrochemistry; Humans; Indigo Carmine; Isatin; Kaolin; Magnesium Compounds; Magnesium Silicates; Mass Spectrometry; Oxidation-Reduction; Silicon Compounds | 2013 |