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Titrimetric and Polarographic Determination of Carminic Acid and its Quantification in Cochineal (Dactylopius coccus) Extracts
| Content Provider | Semantic Scholar |
|---|---|
| Author | Reyes-Salas, Octavio Juárez-Espino, Marcos Manzanilla-Cano, José A. Barceló-Quintal, Manuel H. Reyes-Salas, A. Margarita Rendon-Osorio, Reyna B. |
| Copyright Year | 2011 |
| Abstract | The purity of synthetic carminic acid was quantified using potentiometric and conductimetric titrations, allowing its use as a secondary standard because there is not a primary one. Polarographic analysis (in ethanol-water 50:50, v/v) of carminic acid showed two reduction signals, each with a different number of electrons. The first reduction had more Nernstian behaviour and can be applied in analyses. Differential pulse polarography (DPP) produced a detection limit of 0.55 µg mL �1 . The results indicate that DPP can be used to |
| Starting Page | 89 |
| Ending Page | 93 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| Volume Number | 55 |
| Alternate Webpage(s) | http://www.scielo.org.mx/pdf/jmcs/v55n2/v55n2a5.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
