What component does the U.S. Food and Drug Administration's portable detection device specifically rely on for its mechanism?
Answer
Light-emitting diodes (LEDs)
The U.S. Food and Drug Administration (FDA) prioritized creating immediate, on-the-ground verification tools, central to which is a hand-held, portable device. This specific technology employed by the FDA relies fundamentally on light-emitting diodes, commonly known as LEDs, as the core component of its detection mechanism. This choice facilitates the device's primary advantages: portability and speed, allowing supply chain participants and regulators to conduct rapid screening outside of traditional laboratory settings, contrasting with more complex spectroscopic methods.

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