Patent ID: 9518960
Filing Date: 2016-12-13
CPC Classification: B01J,G01N

Claim Text:
1. A method for detecting one or more polycyclic aromatic hydrocarbons (PAHs) in a sample by means of a CO 2 -based chromatography analysis comprising: providing a sample comprising one or more PAHs for analysis; wherein the sample is prepared with, extracted or dissolved in a diluent comprising at least 60% organic solvent, with the proviso that the sample is analyzed without a solvent exchange step; applying the sample to a chromatography column with a solid stationary phase comprising inorganic or hybrid particles having a mean particle size of about 0.5 to about 3.5 microns, wherein said particles have a non-polar or polar/non-polar surface functionality, and wherein the particles retain said one or more PAHs; eluting the one or more PAHs from the chromatography column by a mobile phase comprising a mixture of liquid CO detecting said one or more eluted PAHs.