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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

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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 which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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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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