Name two substances or techniques where fluorometry is used for measurement.

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Multiple Choice

Name two substances or techniques where fluorometry is used for measurement.

Fluorometry works by detecting light emitted from a substance after it absorbs light. This is especially useful when the analyte either fluoresces on its own or can be labeled with a fluorescent dye, allowing very sensitive detection. Porphyrins have strong intrinsic fluorescence because of their conjugated ring systems, so fluorometric methods are routinely used to measure porphyrins in clinical samples and in porphyrin-related diagnoses. Nucleic acids can be quantified fluorometrically by using dyes that bind specifically to DNA or RNA; the dye’s fluorescence increases upon binding, giving a sensitive readout of nucleic acid concentration. In contrast, salicylates are typically measured by chromatographic or enzymatic methods, and chlorophyll is more commonly studied in plant biology than in clinical chemistry. Therefore, porphyrins and nucleic acids are the two substances where fluorometry is commonly used for measurement.

Fluorometry works by detecting light emitted from a substance after it absorbs light. This is especially useful when the analyte either fluoresces on its own or can be labeled with a fluorescent dye, allowing very sensitive detection. Porphyrins have strong intrinsic fluorescence because of their conjugated ring systems, so fluorometric methods are routinely used to measure porphyrins in clinical samples and in porphyrin-related diagnoses. Nucleic acids can be quantified fluorometrically by using dyes that bind specifically to DNA or RNA; the dye’s fluorescence increases upon binding, giving a sensitive readout of nucleic acid concentration. In contrast, salicylates are typically measured by chromatographic or enzymatic methods, and chlorophyll is more commonly studied in plant biology than in clinical chemistry. Therefore, porphyrins and nucleic acids are the two substances where fluorometry is commonly used for measurement.

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