| 摘要 |
A method of identifying a liquid petroleum product using a device comprising a laser source and a means for detecting a fluorescent signal comprising (a) a first step of adding to the liquid petroleum product a material capable of fluorescing in the far red or near infrared region of the spectrum; (b) a second step of exposing the liquid petroleum product obtained in the first step to the laser source at a wavelength in the far red or near infra region of the spectrum suitable for exciting the material; (c) determining the presence of the material in the liquid petroleum product by determining the fluorescence signal. |
