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Tom Subirge's avatar

Hi Karl, A spectrophotometer eh? While those are still on the market, they're almost an outdated tech, depending on what your intentions are to use it. They range from about $250 to multi thousands, again what is your intended use? The basic ones I'm very familiar with ,having used a Bausch and Lomb unit decades ago. You will need some quality cuvettes (optically flat), or results get skewed. When leaning towards needing a high end unit, it might be worthwhile to take a leap into a low end flame photometer - which come digital now of course. Next up is atomic absorption which also works off of flame emissions, but for determining elemental composition these might be preferred. They are far more accurate than a spectrophotometer which will require titrations etc. to determine concentrations. However, unless you plan to open a commercial lab with continual use, this type of equipment is hard to make pay off. To run a few occasional samples, it might be easier to contact someone who already has a lab. I have no affiliation, but Mike Adams comes to mind, who runs a commercial accredited lab with all the latest bells and whistles. Just a thought.

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koppykat's avatar

I really can’t stand time wasters…and really annoyed with what Ray has done. You handled it well !

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