In the present work, elemental and molecular compositions of Ayurvedic medicine have been performed using Photoacoustic Spectroscopy (PAS) and Laser-Induced Breakdown Spectroscopy (LIBS) techniques. The molecular bands of Protein, Carbohydrate, Flavonoid, and Chlorophyll, etc., have been observed using the PAS technique. PAS is based on the detection of photon-induced acoustic (PA) signals generated via non-radiative transition processes. The spectral lines of organic elements (C, H, N, and O) as well as the spectral lines of minerals (Al, Ca, Fe, Mg, Na, Si, and Sr) have been observed in the Laser-induced Breakdown (LIB) spectrum of the medicine. The presence of the spectral lines of organic elements is due to the photo fragments of the organic compounds present in the medicine. The molecular band of CN molecule in the LIB spectrum of the medicine further confirms the medicines' organic compound. Thus, along with LIBS, PAS is a suitable technique for the complete compositional analysis of Ayurvedic medication.
Green tea is a type of tea made from the leaves and buds of Camellia sinensis. To ensure the interests of Green Tea producers and consumers the precise identification of tea varieties is of great significance. Thus, Laser-induced breakdown (LIB) Spectra of Green tea have been recorded for the its compositional analysis.LIB Spectra of the sample shows the presence of molecular bands of CN and C 2 molecule in addition to the spectral signature of the elements like Carbon(C), Manganese (Mn), Magnesium (Mg), Iron (Fe), Aluminium (Al) etc. The concentration of C and N is corelated to the atomic lines of C and N and molecular band of CN and C 2 . Thus, the results of present work reveal that LIBS technique is a direct, straight forward and easy method for detection of elements and some specified molecule present in the sample.
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