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Home > Newsletter > Tech Tip: Five Good Spectroscopy Questions

Tech Tip: Five Good Spectroscopy Questions

Popular FAQs Address Spectrometers, Accessories and Software

Spectroscopy is a powerful technique, enriched by its nuances and challenging in its trade-offs. To help manage all that, Ocean Optics provides application consultation and technical support, complemented by a wealth of information available at our website. Here are five of our most popular recent Frequently Asked Questions:

 

1. How does my choice of spectrometer slit size affect optical resolution?
Optical resolution of a monochromatic source — measured as Full Width Half Maximum (FWHM) — depends on the groove density (mm-1) of the grating and the diameter of the entrance optics (optical fiber or slit). In configuring your spectrometer, consider two important trade-offs … Learn more.

 

 

Cuvettes 2. How do CVD series plastic cuvettes optimized for the UV compare with quartz cuvettes? The plastic cuvettes have good response to about 220 nm, but they aren’t nearly as UV transparent as quartz cuvettes. For most UV absorbance applications, we recommend quartz cuvettes. View specifications and related information for plastic and quartz cuvettes.
3. How do I get a password for software installation? If you’ve recently purchased OceanView or OmniDriver software products and misplaced the license key or password, you can be operational in just a few simple steps … Learn more.

 

 

4. How is CIELAB color computed? Typically, CIELAB is computed using some reference illuminant; for example, A, D65 or D75. These illuminants are normalized to a value of 100 at 560 nm. When doing a relative color measurement, the result is usually referenced to these illuminants … Learn more.

 

SERS substrates

 

5. What analytes can be detected with Ocean Optics SERS substrates, and at what concentrations? Surface Enhanced Raman Spectroscopy (SERS) substrates amplify very weak Raman signals by many orders of magnitude, with measurements of SERS-active analytes possible at even parts per trillion levels. Our gold, silver and nanosponge gold/silver SERS substrates let you make fast, repeatable SERS measurements for the identification and quantification of SERS-active analytes. We have tested a variety of analytes with our SERS substrates using a QE Pro-Raman spectrometer and 785 nm probe … View the results.

 

In addition to FAQs, Ocean Optics makes available numerous application notes, product sheets, specifications, video and other resources. For access, use the accordion tabs at each product page or visit our sections for Applications, Measurement Techniques, Knowledge and Support. And there’s always the good old-fashioned approach: Just ask us. We’re here to help.