Patent ID: 8562910
Filing Date: 2013-10-22
Classification: G01N

Abstract:
1. An analyzer for measuring the concentration of polychlorobiphenyls in insulating oil, the analyzer comprising: a separation and refinement part for separating polychlorobiphenyls in insulating oil from oil content that is an impurity; and an analytical part for measuring the concentration of polychlorobiphenyls in the insulating oil that has passed through the separation and refinement part, wherein the separation and refinement part comprises a sample injection part for injecting insulating oil containing polychlorobiphenyls, a vessel for causing the injected insulating oil to be passed through and a detector for determination of separation for determining whether or not separation of polychlorobiphenyls in the passed through insulating oil from oil content that is an impurity is sufficient, wherein the vessel is packed with particles of a copolymer that contains divinylbenzene and a methacrylate organic monomer having a diol hydroxyl group as monomer components; wherein the analytical part comprises a trap column for retaining polychlorophenyls, a 1st switching valve for fractionating and concentrating polychlorophenyls into the trap column, and a 2nd switching valve for introducing polychlorophenyls into a gas chromatograph after desorption of the polychlorophenyls from the trap column.