Mass Spectrometry

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Forum Posts

lock mass in Q-exactive focus

Hi, We're using Q-exactive Focus. Mass accuracy exceeds 5 ppm within a minimum of 6 hours to a maximum of 2 days after full or mass calibration.So we used the lock mass function, setting the external standard compound injection for an initial slope o...

yumikim by Involved Contributor
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Clean-up procedure for Orbitrap 240

Hi, I have an Orbitrap 240 which I will be using for both proteins and lipids. I wanted to see if you have any clean-up procedures after using lipids that will help keep away any possible contaminations while running proteins? Thanks for your help Ra...

Help an ambitious and young chemical analyst to grow!

Dear Colleagues,I'm Matteo, a 21yo chemical analyst approaching mass spectrometry for the first time. My lab decided to supply me a TSQ8000 EVO, where I've to improve PAH, PCB,Phenols, OCP, HBCD ecc.I'd apprecciate your experience and sense of collab...

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