پاورپوینت نورسنجی (pptx) 52 اسلاید

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تعداد اسلاید: 52 اسلاید

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Photometry نورسنجی Light Transmission Dependence on Concentration Beer’s Law molecular absorptivity distribution curve ALSO See Figure 3-5 Page 81 UV/VIS Usage In the medical field, it is used for the determination of enzymes, vitamins, hormones, steroids, alkaloids, and barbiturates. These measurements are used in the diagnosis of diabetes, kidney damage, and myocardial infarction, among other ailments. In the pharmaceutical industry, it can be used to measure the purity of drugs during manufacture and the purity of the final product. For example, aspirin, ibuprofen, and caffeine, common ingredients in pain relief tablets, all absorb in the UV and can be determined easily by spectrophotometry. اسپكتروفوتومتري Beer’s Law محدوديتهاي قانون بير غلظت کم تک طول موج بودن نور تغييرات دمايي Calibration curve اسپكتروفوتومتري اجزاي دستگاه Conventional Spectrophotometer Schematic of a conventional single-beam spectrophotometer