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Sensors 2005, 5(1), 61-69; doi:10.3390/s5010061
Article

In-situ LIF Analysis of Biological and Petroleum-based Hydraulic Oils on Soil

,  and *
University of Potsdam, Institute of Chemistry, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam-Golm, Germany
* Author to whom correspondence should be addressed.
Received: 2 September 2004 / Accepted: 20 December 2004 / Published: 28 February 2005
(This article belongs to the Special Issue Sensors for Environmental Monitoring)
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Abstract

Absorption and fluorescence properties of 4 hydraulic oils (3 biological and 1petroleum-based) were investigated. In-situ LIF (laser-induced fluorescence) analysis of theoils on a brown sandy loam soil was performed. With calibration, quantitative detection wasachieved. Estimated limits of detection were below ca. 500 mg/kg for the petroleum-basedoil and ca. 2000 mg/kg for one biological oil. A semi-quantitative classification scheme isproposed for monitoring of the biological oils. This approach was applied to investigate themigration of a biological oil in soil-containing compartments, namely a soil column and asoil bed.
Keywords: in-situ optical oil sensor; lubricants; hydraulic oils; soil; laser induced fluorescence in-situ optical oil sensor; lubricants; hydraulic oils; soil; laser induced fluorescence
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Lemke, M.; Fernández-Trujillo, R.; Löhmannsröbenc, H.-G. In-situ LIF Analysis of Biological and Petroleum-based Hydraulic Oils on Soil. Sensors 2005, 5, 61-69.

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