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التحليل الطيفي الضوئي (PAS): المبادئ والتكنولوجيا والتطبيقات

1. IntroductionPhotoacoustic Spectroscopy (PAS) is a powerful analytical technique used to detect and measure the concentration of chemical substances through the generation of acoustic waves as a result of light absorption. First observed in the 1880s by Alexander Graham Bell, the photoacoustic effect remained a...