Method for measuring content of terpyridine

The invention discloses a method for measuring the content of 2,2':6',2'-terpyridine. The method is a standard addition method. The method comprises the following steps: weighing a sample, adding sodium hydroxide and ethyl acetate, vibrating, performing supersonic extraction to obtain a solution of sample to be measured; then evenly mixing a series of 2,2':6',2'-terpyridine standard solutions with an equal volume ratio with the sample solution, then using a gas chromatography-mass spectrometer (GC-MS) to measure the responding values of the mixed solutions, taking concentration values as the horizontal coordinate and responding values as the vertical coordinate to draw a curve, and calculating the content of 2,2':6',2'-terpyridine in the sample. The provided method has the advantages that the pretreatment is simple and rapid, the detection cost is low, the detection limit is low, and the result is accurate.