Wow, it's been busy. Got a new ICP mass spec with some new features not seen before on any previous ICP mass spectrometers. Now, for the first time ever, copper can be analyzed in a matrix of salt water without any matrix removal, all while keeping the detection limit below the EPA action limit. Also, no internal standard suppression more than 60%. Since we don't write papers for journal submission, I'm announcing this to the chemistry community here.
Important factors in the analysis include a specific nebuliser optimization, cones that are water cooled, but are allowed to be at a higher temperature than previous models, and a really long rinse time.
Any chemist out there that are analyzing copper in seawater on ICPMS, inquire here for smooth analyses.
Thursday, February 22, 2007
Thursday, January 04, 2007
Check out Notre Dame's ICPMS lab
This place looks pretty sweet, except for the exhaust tubes hanging all over the place. If they analyze samples for free, can I sub-contract?
The Element 2 High-Resolution ICPMS is from the good ole boys at Thermo, who have now merged with Fisher Scientific to form a massive company that can sell you anything from post it notes to 1-Aryl-2-Pyrrolidinones. With more resolution like this, you might be able to tell the difference between 32S-33S and 65Cu. Did you know that there is a lot of sulfur in seawater, but not a lot of copper? Makes it hard to analyze for copper. Oh ya, mass 63 doesn't work either because of ArNa :)
The Element 2 High-Resolution ICPMS is from the good ole boys at Thermo, who have now merged with Fisher Scientific to form a massive company that can sell you anything from post it notes to 1-Aryl-2-Pyrrolidinones. With more resolution like this, you might be able to tell the difference between 32S-33S and 65Cu. Did you know that there is a lot of sulfur in seawater, but not a lot of copper? Makes it hard to analyze for copper. Oh ya, mass 63 doesn't work either because of ArNa :)
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