Hind Attaoui

4 Questions 7 Answers 0 Followers

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Pheophorbide a chemical structure after saponification?

Hello, I would like to ask about the exact chemical structure of pheophorbide a after saponification process of chlorophyll using KOH. Will the resulting structure carry one or two K⁺ ions? I ask...

4 weeks ago 6,986 5 View

A protocol on how to convert chlorophyll to chlorophyllin (Copper Chlorophyllin)?

Hello, Is there an effective and reproducible protocol for converting chlorophyll to water soluble chlorophyllin, particularly one that maximizes yield and preserves chlorophyllin stability? I...

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At what current (in amperes) should I adjust my laser source to achieve a light intensity of 100 mW/cm² on an irradiated area of 0.125 cm²?

Hello! The laser intensity in the source is displayed in amperes (on its screen), and my goal is to achieve a light irradiation of 100 mW/cm² given that the irradiated area is 0.125 cm², and the...

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HPLC-MS pigments identification without standards?

Hello! Is it possible to identify pigments using HPLC-MS but without the use of any standards? Despite not having any pigments standards, I have performed the separation of my extracted pigments...

05 February 2024 2,256 4 View