Spectroscopic Methods for Analysing Herbal Medicine and their Roles in Healthcare |Chapter 1 | Pharmaceutical Science: New Insights and Developments Vol. 10

 

Background: Spectroscopic methods are very fundamental, convenient, cost-effective and available equipment settings in both industry and laboratory to analyse a range of products, including food, medicines, cosmetics and herbal products. Herbal drugs, that is, plant-derived products, have been used in the healthcare system from ancient times. There are different types of spectroscopic methods, among which ultraviolet and visible spectroscopy, infrared spectroscopy, atomic absorption spectroscopy, Mass spectroscopy, Fluorescence spectroscopy and Nuclear magnetic resonance spectroscopy are widely used for analysing herbal drugs.

 

Materials and Methods: PubMed, Research Gate, Google Scholar and other search engines, including Artificial intelligence tools, have been searched to find suitable literature to find relevant research works. The keywords “Spectroscopy”, “Herbal medicines”, “UV-VIS spectroscopy”, “Analysis”, “Infra-Red spectroscopy”, “Raman spectroscopy”, “Atomic absorption spectroscopy”, “Mass spectroscopy”, “Nuclear magnetic resonance spectroscopy”, “Analysis of herbs and phytoconstituents” etc. have been applied to find expected research articles and collect information on various aspects of spectroscopic methods for analysing herbal medicine and their roles in healthcare.

 

Results: After a thorough study of a lot of published articles, standard textbooks and related literature, we found some spectroscopic methods which are suitable for the analysis of herbal drugs. Some of these methods are - ultraviolet spectroscopy, infrared and Fourier Transform Infra-red spectroscopy, Raman spectroscopy, atomic absorption spectroscopy, fluorescence spectroscopy, Nuclear magnetic resonance spectroscopy and mass spectroscopy. Several tandem systems integrate spectroscopic and chromatographic techniques. Prominent examples include gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS). These methods are highly suitable, specific, sensitive, and readily amenable to validation.

 

Conclusion: Spectroscopic methods provide a reliable and cost-effective approach for evaluating phytochemical potency and ensuring the quality of herbal preparations, making them essential tools in routine laboratory analysis.

 

 

Author(s) Details

Sabiha Ferdowsy Koly
Department of Pharmacy, Southeast University, Tejgaon-1215, Dhaka, Bangladesh.

 

Md. Shah Amran
Department of Pharmacy, School of Pharmacy and Public Health, Independent University, Bangladesh (IUB), Bashudhara, Dhaka-1229, Bangladesh.

 

Please see the book here :- https://doi.org/10.9734/bpi/psnid/v10/6660

Room-temperature Transformation of Alkyl to Vinyl Carbocations in Organic Solutions: A New Path to Stable Vinyl Cation Salts | Chapter 5 | Chemical and Materials Sciences: Research Findings Vol. 5

 

It was found that alkyl carbocations, such as tert-butyl and methylcyclopentyl cations, decompose to unsaturated vinyl-type carbocations when their salts are dissolved in common organochlorine solvents. These transformations yield thermally stable vinyl cation salts, which were characterised by IR spectroscopy and, in some cases, X-ray crystallography. This method provides a convenient approach to isolating crystals of vinyl carbocation salts and studying them in solution, with implications for understanding carbocation stability and reactivity beyond superacidic media.

 

Author(s) Details

Evgenii S. Stoyanov
N.N. Vorozhtsov Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia.

 

Irina V. Stoyanova
N.N. Vorozhtsov Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia.

 

Please see the book here :- https://doi.org/10.9734/bpi/cmsrf/v5/5964

Phase Composition and Stress in Proton Exchanged Waveguide Layers in LiNbO3 and LiTaO3 | Chapter 9 | Newest Updates in Physical Science Research Vol. 5

 Based on their mode and IR spectra, the phase composition of Li_1-xH_xNbO₃ and Li_1-xH_xTaO₃ waveguide layers created at various variations of the proton exchange (PE) technology and having complicated phase composition with varied quotas of the phases present is investigated. The optical integral approach is used to calculate the intrinsic stress induced by crystal lattice deformations at a rather high amount of hydrogen doping in the PE layers. The phase composition of the analysed samples is used to try to explain the level of stress. The findings aid in a better understanding of the features and characteristics of waveguides of this type.

Author (s) Details

M. Kuneva
Institute of Solid State Physics – BAS, 72 Tzarigradkso Chaussee Blvd., 1784 Sofia, Bulgaria.

S. Tonchev
Institute of Solid State Physics – BAS, 72 Tzarigradkso Chaussee Blvd., 1784 Sofia, Bulgaria.

K. Christova
Institute of Solid State Physics – BAS, 72 Tzarigradkso Chaussee Blvd., 1784 Sofia, Bulgaria.

View Book :- https://stm.bookpi.org/NUPSR-V5/article/view/1404