Signal to noise ratio

Activate QC parameters in METHOD drop down menù. Select noise and drift and set critiria. Normally i use ASTM for noise and save the method, then start a run without injection (-1 in the batch vial position). In the browser open the data file, drag over the method. In a drop down menù you find execute QC and noise drift report in created with resulta pass o fail. there are other method to obtail noise drift calculation in labsolutions software but this is the simplest

In Lab solutions to calculate signal by noise ratio first integrate blank and use the option in integration parameters select the option of signal and drift select the usp not astmand save.
after blank integrate the analyte and keep the spectral reference data of blank it automatically provide the s/N