Abstract：Separation and purification of a highly effective emulsified viscosity reducer were performed. The functional group of the components of the sample was characterized by FTIR. The corresponding components were indentified with +H NMR and ESI-MS. It was deduced that the surfactants in the sample are 26.6% alkylphenol polyoxyethylene and 19.3% sodium lauroyl sarcosine. The macromolecule component in the sample is polybutylacrylate accounting for 9.0%. There is 27.2% NaOH in the sample and a little NaCl by qualitative and quantative analysis, and the residual is water.
Key words：Emulsified viscosity reducer;Fourier transform infrared spectrum(FTIR);Nuclear magnetic resonance(+H NMR);Electrospray ionization mass spectrometry(ESI-MS)
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