Abstract
A compact diode laser/fiber-optic Raman spectrometer is used for quantitative detection of environmentally important dyes. This system is based on diode laser excitation at 782 nm, fiber-optic probe technology, an imaging spectrometer, and a state-of-the-art scientific CCD camera. The dyes studied include trypan blue, acid black 1, acid blue 40, and basic blue 7. Detection sensitivities (at rms S/N = 2) ranged from 0.2 ppm (3.24 × 10−7 M) for acid black 1, to 25 ppm (4.86 × 10−5 M) for basic blue 7.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 508-512 |
| Number of pages | 5 |
| Journal | Applied Spectroscopy |
| Volume | 49 |
| Issue number | 4 |
| DOIs | |
| State | Published - Apr 1995 |
| Externally published | Yes |
Keywords
- CCD Raman detection
- Detection limits
- Diode laser Raman
- Dyes
- Fiber-optic sampling
- Quantitative detection
- Raman spectroscopy
ASJC Scopus subject areas
- Instrumentation
- Spectroscopy