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Chen, RF, Bada JL.  1990.  A Laser-Based Fluorometry System for Investigations of Seawater and Porewater Fluorescence. Marine Chemistry. 31:219-230.   10.1016/s0304-4203(05)80014-3   AbstractWebsite

A highly sensitive laser-induced fluorescence (LIF) system has been developed to study the fluorescence of dissolved organic carbon (DOC) in the marine environment. The LIF detector has a detection limit of approximately 10 attomoles (10x10(-18) moles) of pterin and eliminates internal quenching in highly fluorescent samples such as anoxic porewaters encountered when using conventional fluorometry. LIF analysis is rapid, reproducible, and uses only 100 mu-l of a sample. This small size requirement permits fluorescence analyses of samples often available only in limited amounts, such as pore-waters, hydrothermal vent waters, and rainwaters. In addition, the LIF detection system may greatly simplify extraction and separation procedures required to characterize the fluorescent components of DOC.

Peltzer, ET, Bada JL.  1981.  Low-Molecular Weight Alpha-Hydroxy Carboxylic and Dicarboxylic-Acids in Reducing Marine-Sediments. Geochimica Et Cosmochimica Acta. 45:1847-1854.   10.1016/0016-7037(81)90015-6   Website