نتایج جستجو برای: qnmr
تعداد نتایج: 74 فیلتر نتایج به سال:
Lithium quantification using benchtop NMR.
The extract prepared from the leaves of Stevia rebaudiana BERTONI (Asteraceae) contains sweet steviol glycosides, mainly stevioside and rebaudioside A. Highly purified stevia extracts have become popular worldwide as a natural, low-calorie sweetener. They contain various types of steviol glycosides, and their main components are stevioside and rebaudioside A. The content of each steviol glycosi...
Azaspiracids (AZAs) are marine biotoxins produced by dinoflagellates that can accumulate in shellfish, which if consumed can lead to poisoning events. AZA7-10, 7-10, were isolated from shellfish and their structures, previously proposed on the basis of only LC-MS/MS data, were confirmed by NMR spectroscopy. Purified AZA4-6, 4-6, and 7-10 were accurately quantitated by qNMR and used to assay cyt...
Objective: To quantify the quassinoids of P. sprucei, a medicinal plant that is native to Amazon region, using qNMR and investigate inhibitory potential isobrucein B neosergeolide on 3CLpro RdRp targets SARS-CoV-2 through in silico approaches. Methods: quantification was performed fraction (F2-F3) enriched with PULCON method. In assays were molecular docking assess interactions binding affinity...
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