Question: What are good containers to use for spectrometry samples?

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warren asked on September 29, 2016 21:19
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Sourcing from this page, I'm interested in how to choose the best containers for samples while scanning.

I've heard @eustatic distinguish between long-term storage, which could be in a cool, dark place, in glass, for most substances -- and short-term containers, which must:

  • be optically extremely clear
  • not be soluable in the solvent used (not a big problem for mineral oil, but isopropyl or diesel can dissolve different plastics)
    • so it doesn't melt the container
    • so the sample doesn't get contaminated by the melted material from the container
  • not leak while you're using it
  • be cheap -- <$1 each, hopefully!
  • be small -- so light can shine through it, and not too much sample is required
  • anything else?

dropper.jpg Cuvette_with_penny.jpg

There are actually resources across this site to answer this question; I'm just trying to get it all into one place!

spectrometer spectrometry sample-containers sample-prep sampling answered spectrometry-sampling

question:spectrometry question:spectrometry-sampling question:water-sampling question:spectrometry-challenge question:spectrometry-turbidity


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1 Answers

What do you think of the ones that are transparent on all four sides? That way the cuvettes can be used for trans, abs, flores, or turbidity.

There are cuvettes made of styrene and abs. Good to what? 280 nm? These are relatively cheap. Best are quartz, but boy are they expensive!!! Any other options as far as plastics? I'd love a cheap one good to 200 nm, but haven't seen it yet.

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