Cristina Margarita Escalante Medina

Hola @LatinXChem ! Hello, presenting my work "Quantification of damnacanthal in organic extracts of Morinda citrifolia by High Performance Liquid Chromatography (HPLC)" in #LatinXChem24 #LatinXChemAna #Ana58

It may not look like it in the picture but I am excited to participate as a judge in the upcoming #LatinXChem24 on October 14 & 15. We would be happy to have your contribution. Register now. You have until September 15th. latinxchem.org

@munoz_rdd @LatinXChem Hola, gracias por su pregunta. Para todas las extracciones utilicé DCM. En las imágenes incluyo las condiciones del análisis cromatográfico así como los parámetro de las extracciones.

@crisesme15 @LatinXChem Hola Cristina Margarita...reportas resultados de 5 técnicas de extracción ¿utilizaste el mismo solvente en todas? ¿que solvente? ¿cuáles fueron tus condiciones cromatográficas y de detección?

Hola @LatinXChem ! Hello, presenting my work "Quantification of damnacanthal in organic extracts of Morinda citrifolia by High Performance Liquid Chromatography (HPLC)" in #LatinXChem24 #LatinXChemAna #Ana58

@WaldmanLab @TheChemMixt @LatinXChem Ultrasound: EAU Microwave: EAM Reflux: ECR Soxhlet: ES Maceration: EM As can be seen, the one with the highest amount of damnacanthal is not necessarily the one with the highest proportion of extract. So the "best" method depends on the purpose.

@crisesme15 @TheChemMixt @LatinXChem Dear Cristina, can you tell the hypothesis on why the two best methods were better than the others?

@WaldmanLab @TheChemMixt @LatinXChem Hello, thank you very much for your inquiry. The conditions reported in the literature were used, however, when using conventional methods and methods assisted by some equipment, there are some important differences between them as shown in the table.

Hi @LatinXChem, presenting my work ‘Evaluación de la actividad de las algas pardas para la remoción de metales pesados en aguas contaminadas con efluentes residuales domésticos' at #LatinXChem24 #LatinXChemEnv #Env069

@MichRomHer @LatinXChem Thank you very much, that's right, I analyzed the 5 extraction techniques.

@crisesme15 @LatinXChem It is a very nice and schematic poster. You will to use the five extraction techniques that you present or will you choose one?

@Emilio_Pina_B @LatinXChem Good afternoon. In g per 100g of dry sample: Ultrasound: 0.281 g Microwave: 0.87 g Reflux: 1.059 g Soxhlet: 0.685 g Maceration: 0.878 g About chromatographic method: High performance liquid chromatography (HPLC) Diode array detector (DAD)

@crisesme15 @LatinXChem Hello Cristina, an interesting work, I was interested to know what the concentration of damnacanthal was in g per 100g of dry sample, and what chromatographic method did you use? (Type of detector/mobile phase/flow, etc.)

@dolfo_Lopez_Tor @LatinXChem Hi!, HPLC profiles of dichloromethane extracts from M. citrifolia root wood. Ultrasound (green), microwave (red), reflux (pink), soxhlet (blue) and maceration (black).

@crisesme15 @LatinXChem Hi Cristina, nice job. Can you show us a chromatogram?

23 de abril 2020