Intro

This is a page to compile, share, and publish research about near-ultraviolet, visible, and near-infrared spectroscopy/spectrometry analysis techniques. Not all will be applicable to our DIY spectrometer, but many are a good starting point for investigation. If you want to publish research, post it on the Public Lab site and you can add it here too.

Some of the below papers describe other types of spectroscopy such as mid-infrared (MIR) or Fourier-transform infrared (FTIR) and the data they present will not be compatible/comparable with that which we gather in the 400-900nm range. But their methodologies may be a useful reference for those looking to reach similar results in the range our instruments can detect.

Household products

• Laundry detergent (for dyes)

Metals and soil

• Use tag "soil"
• Sodium, aluminum, barium and mercury in soil (Makezine.com)
• Oil/coal contamination
  • laser fluorescence:
    • http://publiclaboratory.org/notes/warren/7-18-2012/fluorescence-oil-spill-residue-diverse-spectrometer-use
    • http://publiclaboratory.org/notes/warren/7-26-2012/oil-residue-preparation-spectroscopy
  • Tag: https://spectralworkbench.org/tag/oilspill

Beer/brewing

• Use tag "beer"
• http://publiclaboratory.org/notes/warren/8-28-2012/spectral-yeast-tests-mystic-brewery
• Quantifying ethanol content of beer using interpretive near-infrared spectroscopy
• Applications of Vibrational Spectroscopy in Brewing (may be behind paywall)
• Rapid Determination of Bitterness in Beer Using Fluorescence Spectroscopy and Chemometrics

Wine & grapes

• Use tag "wine"
• http://publiclaboratory.org/notes/warren/1-19-2012/wine-spectroscopy-adam-hasler
• UV-VIS Spectroscopy of Tannins and Phenols in Red Wine
• Vintage year determination of bottled Chinese rice wine by VIS-NIR spectroscopy
• Near infrared spectroscopy as a rapid tool to measure volatile aroma compounds in Riesling wine: Possibilities and limits

Coffee

• Use tag "coffee"
• http://publiclaboratory.org/notes/warren/8-29-2012/testing-coffee-spectra-toscaninis
• Discrimination of Arabica and Robusta in Instant Coffee by Fourier Transform Infrared Spectroscopy and Chemometrics
• Discrimination of organic coffee via Fourier transform infrared-photoacoustic spectroscopy
• Determination of caffeine in decaffeinated coffee by NIR spectroscopy

Agricultural uses

• Spectral analysis of nitrogen levels based on visible-light spectroscopy

DNA/RNA

• DIYBio discussion

Astronomy