Identification of Hydrocarbons Characteristics Using Low-Power Laser Absorption Spectroscopy
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Abstract
This study presents an experimental investigation into the detection of hydrocarbons using low-power laser absorption spectroscopy at 532 nm. Oil–water emulsions (0–4% v/v) were stabilized with a surfactant and analyzed in transmission. A hydrocarbon fingerprint was derived from the absorption band at 520–525 nm. The system demonstrated high sensitivity (<0.5%), rapid response, and strong linear correlation with concentration (R² = 0.992). The method achieved a limit of detection (LOD) of 0.29% and a limit of quantification (LOQ) of 0.97%. These results highlight the suitability of compact diode-laser systems for low-cost environmental monitoring and industrial safety.
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[1] Pejcic, B., Eadington, P. and Ross, A. (2007) 'Environmental monitoring of hydrocarbons: a chemical sensor perspective', Environmental Science & Technology, 41(18), pp. 6333-6342.
[2] Brown, S.S. (2003) 'Absorption spectroscopy in high-finesse cavities for atmospheric studies', Chemical Reviews, 103(12), pp. 5219-5238.
[3] Parnis, J.M. and Oldham, K.B. (2013) 'Beyond the Beer–Lambert law: the dependence of absorbance on time in photochemistry', Journal of Photochemistry and Photobiology A: Chemistry, 267, pp. 6-10.
[4] Han, J., Li, Y., Zhang, Y., Fan, Z., Chen, J., and Zhou, J. (2022) 'Tunable, High-Power, Narrow-Linewidth Diode Laser for Potassium Alkali Metal Vapor Laser Pumping', Crystals, 12(11), p. 1675.
[5] Eze-Idehen, P.E. (2021). The development of sensors for the detection of hydrocarbons in oil spills. PhD thesis. The University of Manchester.
[6] Sommer, L. (2012). Analytical absorption spectrophotometry in the visible and ultraviolet: the principles. 1st edn. Amsterdam: Elsevier Science.
[7] Cao, X., Li, Z., Zhang, H., Tang, X. and Li, W. (2024) 'Digital Eddy Current Detection Method Based on High-Speed Sampling with STM32', Micromachines, 15(6), p. 718.
[8] Al-Saidi, H.M. and Al-Shamsi, M.A. (2020) 'Recent advances in spectroscopic methods for the detection of petroleum hydrocarbons in water resources: a review', Arabian Journal of Chemistry, 13(1), pp. 925-935.
[9] Fingas, M.F. and Brown, C.E. (2018) 'A review of oil spill remote sensing', Sensors, 18(1), p. 91.