A method of forming a polymer device including the steps of: (i) depositing on a substrate a solution comprising a polymer or oligomer and a crosslinking moiety, to form a layer; (ii) curing the layer formed in step (i) under conditions to form an insoluble crosslinked polymer, characterized in that the crosslinking moiety is present in step (i) in an amount in the range of from 0.05 to 5 mol % based on the total number of moles of repeat units of the polymer or oligomer and the crosslinking moiety in the solution.
Compounds and methods for PEG metabolite and PEG breakdown product assays
申请人:ColonaryConcepts LLC
公开号:US10067103B2
公开(公告)日:2018-09-04
Disclosed herein are compounds and methods for identifying and quantifying a metabolite or breakdown product of PEG. A sample may be assayed for PEG metabolites or breakdown products using liquid chromatography combined with mass spectrometry. Derivatization of the PEG metabolites or breakdown products within the sample with pentaflurobenzoyl chloride in conjunction with negative chemical ionization mode liquid chromatography optimizes the assay.