the active face of the crystal and then after applying the silane the crystal is dried at 104 u00b0 c 121 u00b0 c resulting in an epoxide functionalized surface that is covalently linked to the quartz crystal the surface is then coated with a thin layer of epoxy the epoxy resin and silicone containing polymer may be applied to the qcm surface by various methods that would apparent to one of ordinary skill in the art in one embodiment the epoxy resin or silicone containing polymer are applied to the qcm surface by a drop coating method or a spin coating method after the epoxy resin or silicone containing polymer is applied to the qcm surface the epoxy resin and silicone containing polymer are hardened cured the epoxy resin is hardened cured by a curing agent the type of curing agent utilized would be apparent to one of ordinary skill in the art without undue experimentation and is chosen so that the resin becomes a cured hardened non swelling resin the silicone containing polymer does not require a curing agent the silicone containing polymer should be chosen so that it hardens subsequent to its application to the qcm surface this can be determined without undue experimentation in one embodiment the curing agent is selected from the group consisting of short chain aliphatic polyamines oxyalkylated short chain polyamines long chain polyamine adducts aromatic polyamines polyaminoamides and polythiols various types and combinations of organic materials are in a papermaking process the methodologies embodied in the present disclosure serve to monitor the deposition of one or more organic materials combinations of organic materials in a papermaking process organic materials include natural and or synthetic contaminants under the.