AI Article Synopsis
- A new portable UV laser-induced fluorescence system has been created, featuring an 8-kHz microchip laser and advanced detection technology to identify leached plastics and organic compounds in seawater.
- This system is 100 times more sensitive than existing portable spectrofluorometers and can capture a complete fluorescence spectrum in just 1-2 minutes.
- Successful testing was conducted in the Gulf of Mexico, examining different water masses and exploring various fluorescence properties like lifetime and bleaching effects.
Article Abstract
A portable UV laser-induced fluorescence system that uses a high pulsed repetition frequency (8-kHz) microchip laser at 266 nm, 13 switchable optical filters, and a gated photomultiplier tube detector has been developed and tested successfully for the detection of leached plastics (possibly bisphenol-A) and trace dissolved organic compounds in seawater. The instrument is 100 times more sensitive than commercial portable spectrofluorometers and measures a complete fluorescence spectrum in a moderate time period of 1-2 min. The system was tested in the Gulf of Mexico over varying water masses. In addition, fluorescence lifetime, bleaching, and temporal flow characteristics were studied.
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| http://dx.doi.org/10.1364/ao.42.006747 | DOI Listing |
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