ECD Changing Response
Posted: Thu Jan 27, 2005 2:05 pm
HP ECD's, on separate 5890's, that I just had refurbed (1 cleaned and 1 refoiled) are acting the same. On normal PCB, pest, 552.2 runs, the response increases over the course of the analytical batch run. This time frame is usually 12-18 hours. Response change can be from 20% to 60% increase. Surrogates and calibrations check standards monitor this. Gas flows check out ok. Both units use the same He and N2 gas sources. My next step is to replace gas scrubbers. Any other suggestions?
Thanks
Thanks