| 摘要 |
<p>An oil testing method (1000) and an oil testing device (1) for determination of at least one metal (6, 8) in an oil sample (3) obtained from a lubricant oil of a machine are presented. In the oil testing method (1000), a quantum dot (5, 7) is added to the oil sample (3). The quantum dot (5, 7) is adapted to specifically attach with the metal (6, 8). The quantum dot (5, 7) and the metal (6, 8) are capable of generating a fluorescence resonance energy transfer (FRET) when the quantum dot (5, 7) is attached with the metal (6, 8). The quantum dot (5, 7) in the oil sample (3) is excited by an electromagnetic radiation (12) incident on the oil sample (3). Finally, from the oil sample (3) a fluorescence spectrum (95, 97) corresponding to the quantum dot (5, 7) so excited is detected. The metal (6, 8) is determined by observing a quenching in the fluorescence spectrum (95, 97) corresponding to the quantum dot (5, 7).</p> |
