NURSING EXAM QUESTIONS
TOXICOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Spectrophotometry uses which light source to expose drugs to specific electromagnetic radiation?
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UV
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Infrared
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Visible
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All of these are used
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Explanation:
Detailed explanation-1: -UV-VIS spectrophotometer usually use two light sources. A deuterium lamp is used for the UV region and a tungsten lamp for the VIS region. These lights reach the monochromator via a mirror.
Detailed explanation-2: -Spectrophotometers also measure electromagnetic intensity at various wavelengths. Now, because they measure the frequency emitted by the substance that’s being analyzed, spectrometers do not have their own unit to determine the frequency emitted.
Detailed explanation-3: -A light source is an essential component of a spectrometer as it provides the required energy for excitation essential for spectral transitions.
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