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- Posts: 5
- Joined: Mon Mar 19, 2018 2:26 pm
We use indirect uv method which show negative peak in our chromatograms while using agilent 1200 HPLC with variable wavelength detector we use option to invert polarity of detector to be positive peak ,our new HPLC instruments thermo ultimate 3000 and vanquish flex (both equiped with pda detector) can't found polarization option to invert it...It make a great problem with our stability studies...
Do any one here know how to invert the polarity of pda detector of thermo ultimate or thermo vanquish operate with chromelon 7.2 ?!