The TruDefender identifies chemicals by comparing the returned infrared light to what?

The TruDefender identifies chemicals by comparing the returned infrared light to what?

• A. External library
• B. On-board library
• C. Visual spectrum
• D. Mass spectral database

Answer: (B)

The identification relies on comparing the sample’s infrared fingerprint to a reference set stored directly in the device. This on-board library holds known spectra, so the instrument can quickly match the measured IR spectrum to a likely chemical without needing an internet connection. External libraries would require connectivity and data transfer, which isn’t practical in the field. The visual spectrum isn’t used for this purpose, and a mass spectral database pertains to a different analytical technique (mass spectrometry), not infrared spectroscopy.

The identification relies on comparing the sample’s infrared fingerprint to a reference set stored directly in the device. This on-board library holds known spectra, so the instrument can quickly match the measured IR spectrum to a likely chemical without needing an internet connection. External libraries would require connectivity and data transfer, which isn’t practical in the field. The visual spectrum isn’t used for this purpose, and a mass spectral database pertains to a different analytical technique (mass spectrometry), not infrared spectroscopy.