[Bad_Initialism]

Well, just use your USB spectrometer, of course.

...you do have a USB spectrometer, don't you?

I have mine in my bedside drawer. I use it almost as often as my multimeter.

[philipkglass]

Does yours measure wavelengths that short? A lot of low cost spectrometers don't, because inexpensive glass and plastic optics transmit visible and near-IR radiation but significantly impair shorter UV wavelengths.

[ansgri]

Do you have a recommendation for an inexpensive one? I’ve worked with OceanOptics Flame series, but they’re not exactly cheap, and their software was crap.

[briandw]

I need to get one :)