Fluorescence detection method for condensation point of petroleum product

The invention discloses a fluorescence detection method for a condensation point of a petroleum product and belongs to the technical field of detection. The detection is carried out according to the following steps: detecting the freezing point of the petroleum product according to the change trend of fluorescence intensity according to the fact that fluorescent molecules dissolved in the petroleum product almost do not emit light in a solution state, and fluorescence is enhanced after the solution is solidified along with the reduction of the temperature. According to the phenomenon, a relation curve of the temperature and the fluorescence intensity of the petroleum sample is determined, and the mutation point of the fluorescence intensity along with the temperature change in the curve is the condensation point of the petroleum sample. 一种石油产品凝点的荧光检测方法；属于检测技术领域。按照如下步骤进行检测：是根据一种溶解在石油产品中荧光分子，在溶液态时几乎不发光，随着温度的降低，溶液凝固后荧光增强，通过荧光强度的变化趋势来检测石油产品的凝固点。根据这种现象，测定石油样品温度与荧光强度的关系曲线，其中曲线中荧光强度随温度变化的突变点就是石油样品的凝点。