Liquid Autosampler

The liquid autosampler incorporates our standard flow through Raman sample cell and uses a standard laboratory Raman probe to optically connect the laboratory accessory to our PI-200-L (Laboratory) Raman spectrograph. The accessory can hold up to 42 sample bottles (40 mL volume) with open lids and Silicone/PTFE (0.090″/0.010″ thick) septa seals to ensure that volatiles remain in the sample during testing. Typical flush times are ~ 30 seconds. The user can load a mixture of different types of samples, and PROspect software automatically loads the appropriate chemometric models to predict the correct parameters. Prior to starting a batch of samples, a performance check is made to ensure the system is operating properly, and when the batch is completed, a cleaning cycle is run to maintain optimum sampling performance. Raman spectra and predictions are stored and also made available in a LIMS report format. The liquid autosampling system is designed to handle most liquids, including aqueous samples, gasoline range, jet fuel, and diesel oil-type products.