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Questions and Answers
What is the unique feature of mass spectrometry?
What is the purpose of connecting the GC column directly to the mass spectrometer?
What is the primary function of the mass spectrometer in the GC-MS analysis?
What is the primary function of a spectrophotometer?
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What is the relationship between the quantity of light absorbed and the concentration of the absorbing species in spectrophotometry?
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What is the role of the GC in the GC-MS analysis?
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What is the primary purpose of using UV and IR spectrophotometry in forensic laboratories?
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Which of the following is NOT a key component of a spectrophotometer?
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Why is it important for the field investigator to properly package and label evidence for the laboratory?
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What is the primary advantage of using IR spectroscopy over UV spectroscopy for identifying chemical compounds?
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What is the primary function of a monochromator in a spectrophotometer?
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How does the use of UV and IR spectrophotometry differ from gas chromatography-mass spectrometry (GC-MS) in forensic analysis?
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What is the numerical value used to assign the distance a spot travels up a thin-layer plate in chromatography?
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In Thin-Layer Chromatography (TLC), what is the mobile phase?
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What is the emission of light by a substance that has absorbed light or electromagnetic radiation known as?
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What is the purpose of placing thin-layer plates under ultraviolet light in chromatography?
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What technique involves comparing the movement of a suspect sample with a standard sample in order to identify substances?
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In Thin-Layer Chromatography (TLC), what is the stationary phase?
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