Journal of Plant Science

ISSN: 2573-7988

Impact Factor: 0.583

VOLUME: 2 ISSUE: 2

Page No: 73-79

Real-time in-situ simultaneous monitoring of dissolved oxygen and materials movements at vicinities of an aquatic plant by fluorescence quenching/deflection with an improved calculation method


Article Reviewed By:

Marcus J Curtis-Long(mjl253@cornell.edu)

Jiangxin Wang(jxwang@szu.edu.cn)

Stepan Zezulka(zezulka@sci.muni.cz)

Anelia G Dobrikova(aneli@bio21.bas.bg)

Citation

Xing-Zheng Wu,Luowei Huang, Real-time in-situ simultaneous monitoring of dissolved oxygen and materials movements at vicinities of an aquatic plant by fluorescence quenching/deflection with an improved calculation method(2017)SDRP Journal of Plant Science 2(2)p:73-79

Abstract

Recently we developed a novel optical detection system that allowed real-time in-situ simultaneous monitoring of dissolved oxygen and materials movements at a vicinity of micrometers from an aquatic plant by combining deflection of a probe beam and fluorescence quenching. In the detection system, dissolved oxygen (DO)-quenched fluorescence was monitored together with beam deflection signals at the vicinity of the plant, then DO concentration was calculated from the fluorescence intensity. Here, three calculation methods for obtaining DO concentrations from the fluorescence intensity were examined. Results showed that exponential equations method, where fluorescent quenching coefficient and measured fluorescence intensity either with or without DO were approximated with exponential equations of temperature, gave the closest results to the measured ones by a DO sensor. The method was further applied to monitoring of oxygen and materials movement across the aquatic plants surface.

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