A highly specific and sensitive thin-layer chromatographic method for determining nortriptyline levels in plasma is presented. The procedure involves extracting nortriptyline, acetylating it with radioactive acetic anhydride, resolving acetylnortriptyline by thin-layer chromatography, and measuring its radioactivity.
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http://dx.doi.org/10.1016/s0021-9673(00)93769-5 | DOI Listing |
Sci Rep
January 2025
Faculty of Nano and Bio Science and Technology, Persian Gulf University, Bushehr, 75169, Iran.
There are several studies that announce the inhibitory behavior of this sort of substance to strengthen the shield of metals, which is one of the positive benefits of green inhibitors. In the current investigation, Araucaria heterophylla studied as a green corrosion inhibitor to avert the mild steel during the acidic cleaning. The examination of this plant's ability to control corrosion at different concentrations in the acidic solution used certain expert measures.
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December 2024
INRAE, OPAALE, 35044 Rennes, France. Electronic address:
Understanding lipid digestion is crucial for promoting human health. Traditional methods for studying lipolysis face challenges in sample representativeness and pre-treatment, and cannot measure real-time lipolysis in vivo. Thus, non-invasive techniques like magnetic resonance imaging (MRI) need to be developed.
View Article and Find Full Text PDFCarbohydr Res
January 2025
Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, 81531-990, Curitiba, PR, Brazil. Electronic address:
Sea cucumbers are widely used in oriental cuisine due to their medicinal properties. Antioxidant, antifungal, antiviral, anticancer and neuroprotective activities have already been identified in several species and in different tissues. Among the class of compounds with biological activity are cerebrosides, which have important functions for the proper functioning of cells, especially neuronal cells.
View Article and Find Full Text PDFJ Chromatogr A
January 2025
Université Côte d'Azur, CNRS and Inserm, Institut de Pharmacologie Moléculaire et Cellulaire, UMR 7275, Sophia Antipolis, Valbonne, France.
The introduction of high-performance TLC (HPTLC) instrumentation that allows precise control of critical parameters has transformed the technique into an efficient and rapid tool for analyzing various metabolites, namely lipids. Although mass spectrometry (MS) has largely replaced lipid analysis techniques over recent decades due to its comprehensive lipidome profiling capabilities, it typically lacks the rapidity and simplicity of TLC. HPTLC remains advantageous due to its ease of use, simpler data interpretation, and compatibility with complementary techniques.
View Article and Find Full Text PDFJ Chromatogr A
January 2025
Institute of Food Chemistry, Department of Food Chemistry and Analytical Chemistry, University of Hohenheim, Garbenstraße 28, 70599 Stuttgart, Germany. Electronic address:
As an established analytical method, high-performance thin-layer chromatography (HPTLC) offers powerful capabilities. This study focused on its application to analyze chlorinated paraffins (CP) by planar solid phase extraction (pSPE). Based on previous work, an irradiation chamber was developed to investigate the derivatization process on planar thin-layers and ensure a robust and reproducible analysis.
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