▎ 摘　　要

NOVELTY - Quantitative detection of surfactant in nano-catalysts involves placing dried powdered nano-catalyst in crucible, using differential thermal analyzer to record the temperature-weight and temperature-heat curves of the sample in preset temperature range and atmosphere, and using the mass loss on temperature-weight curve and the number and peak area of the temperature-heat curve to quantitatively analyze the type and content of the surfactant in catalyst. USE - Quantitative detection of surfactant in nano-catalysts. ADVANTAGE - The method is short and does not need establishment of standard curve in advance, and can effectively realize the qualitative and quantitative analysis of surfactants using mass loss and heat flow signals with less amount of sample and excellent repeatability, and is not affected by factors such as carrier surface functional groups and solvents, and produces experimental results with high reliability.