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- Posts: 14
- Joined: Mon May 13, 2019 11:39 am
Well recently we have some serious issues with the instrument.
We have a very bad linearity, therefore the deviance between the same standard runs are so bad that we couldn't give any reliable results. We have 0,02 ug/ml, 0,05, and 0,1 standard concentrations. Some of the measurable components are good, with linearity and all, but some have 0,81 R value, and some have in minus (first two have almost bigger response value). We had the annual maintenance, and 40 samples with some of the worst matrix before this. We've excluded coloumn failure, because we have same problems with a brand new coloumn. Check tune fails in both modes (positive, negative), and autotune have two error messages: 'Adjust Mass Axis failed: Delta is outside the tolerance level'
'Diverter Valve set to MS during tune. Process will abort
And the ramp parameters are outside the limit, the base cell accel V option is 0 to 8 by 0,2 , and now is 40 to 400.
Anyone have suggestions?
We have a very bad linearity, therefore the deviance between the same standard runs are so bad that we couldn't give any reliable results. We have 0,02 ug/ml, 0,05, and 0,1 standard concentrations. Some of the measurable components are good, with linearity and all, but some have 0,81 R value, and some have in minus (first two have almost bigger response value). We had the annual maintenance, and 40 samples with some of the worst matrix before this. We've excluded coloumn failure, because we have same problems with a brand new coloumn. Check tune fails in both modes (positive, negative), and autotune have two error messages: 'Adjust Mass Axis failed: Delta is outside the tolerance level'
'Diverter Valve set to MS during tune. Process will abort
And the ramp parameters are outside the limit, the base cell accel V option is 0 to 8 by 0,2 , and now is 40 to 400.
Anyone have suggestions?
