Dissolved oxygen sensor based on fluorescence quenching of oxygen-sensitive ruthenium complex immobilized on silica–Ni–P composite coating

2006 ◽  
Vol 117 (1) ◽  
pp. 172-176 ◽  
Author(s):  
Xiaoli Xiong ◽  
Dan Xiao ◽  
Martin. M.F. Choi
Keyword(s):  
Fluorescence Quenching ◽  
Dissolved Oxygen ◽  
Composite Coating ◽  
Oxygen Sensor ◽  
Ruthenium Complex ◽  
Oxygen Sensitive

Oxygen Sensor Based on the Fluorescence Quenching of a Ruthenium Complex Immobilized in a Biocompatible Poly(Ethylene Glycol) Hydrogel

2004 ◽  
Vol 4 (6) ◽  
pp. 728-734 ◽  
Author(s):  
D.P. O'Neal ◽  
M.A. Meledeo ◽  
J.R. Davis ◽  
B.L. Ibey ◽  
V.A. Gant ◽  
...  
Keyword(s):  
Fluorescence Quenching ◽  
Ethylene Glycol ◽  
Oxygen Sensor ◽  
Ruthenium Complex ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

scholarly journals Ratiometric Sensor Based on PtOEP-C6/Poly (St-TFEMA) Film for Automatic Dissolved Oxygen Content Detection

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 6175
Author(s):  
Honglin Zhang ◽  
Zhiguo Zhang
Keyword(s):  
Dissolved Oxygen ◽  
Oxygen Sensor ◽  
Optical Parameter ◽  
Signal Integration ◽  
Exponential Relationship ◽  
Luminescence Signal ◽  
Calibration Equation ◽  
Labview Software ◽  
Oxygen Sensitive ◽  
Coumarin 6

A ratiometric oxygen sensor based on a platinum octaethylporphyrin (PtOEP)–coumarin 6 (C6)/poly (styrene-trifluoroethyl methacrylate) (poly (St-TFEMA)) film was developed for automatic dissolved oxygen (DO) detection. The oxygen-sensing film according to the dynamic quenching mechanism was prepared by embedding platinum octaethylporphyrin (PtOEP) and coumarin 6 (C6) in poly (styrene-trifluoroethyl methacrylate) (poly (St-TFEMA)). The optical parameter (OP) was defined as the ratio of the oxygen-insensitive fluorescence from C6 to the oxygen-sensitive phosphorescence from PtOEP. A calibration equation expressing the correlation between the OP values and DO content described by a linear function was obtained. A program based on the Labview software was developed for monitoring the real-time DO content automatically. The influence of the excitation intensity and fluctuation on the OP values and the direct luminescence signal (integration areas) was compared, verifying the strong anti-interference ability of the sensor. The detection limit of the sensor was determined to be 0.10 (1) mg/L. The switching response time and recovery time of the sensor were 0.4 and 1.3 s, respectively. Finally, the oxygen sensor was applied to the investigation of the kinetic process of the DO content variation, which revealed an exponential relationship with time.

Characterization and Correction of Temperature Effects on Ru(bpy)32+ Fluorescence Films Used in Dissolved Oxygen Sensor

2014 ◽  
Vol 875-877 ◽  
pp. 567-573
Author(s):  
Xian De Zhao ◽  
Wen Gang Zheng ◽  
Da Ming Dong ◽  
Shi Rui Zhang ◽  
Lei Zi Jiao
Keyword(s):  
Dissolved Oxygen ◽  
Temperature Effect ◽  
Fluorescence Intensity ◽  
Oxygen Sensor ◽  
Sodium Sulfite ◽  
Correction Coefficient ◽  
Sensitive Film ◽  
Different Temperatures ◽  
Oxygen Sensitive ◽  
Sensitive Membrane

The spectral characteristic of the fluorescence film used in dissolved oxygen sensor is influenced by temperature. In this paper, we quantitatively studied the temperature effect of the dissolved oxygen sensitive film based on Ru (bpy)32+complexes. In order to study how it was affected, two experiments were designed. One experiment was carried out when the sensitive membrane was dipped into solution of saturated sodium sulfite, in which case, there was no oxygen interference. The other experiment was implemented when the sensitive film was exposed to air, while the influence of oxygen was constant. In the processes of both experiments, we adjusted the temperature around the sensitive membrane. When the temperature rising from 0°C to 45°C, the fluorescence intensity emitted from the sensitive film was reduced which in the first experiment decreased from 5030counts to 3845counts and in the second experiment from 2314counts to 1407counts. Then a method can correct the temperature effect was proposed. The curve of spectrum at 25°C was supposed to be the standard and spectrums at other temperatures was corrected to be consistent with it. The correction coefficient of every wavelength was got through our calculation. After multiplying the coefficients, fluorescence intensity at different temperatures was approximately equal and the differences caused by temperature were eliminated.

Real-Time Monitoring of Dissolved Oxygen with Inherent Oxygen-Sensitive Centers in Metal–Organic Frameworks

2016 ◽  
Vol 28 (8) ◽  
pp. 2652-2658 ◽  
Author(s):  
Jian Yang ◽  
Zhe Wang ◽  
Yongsheng Li ◽  
Qixin Zhuang ◽  
Jinlou Gu
Keyword(s):  
Dissolved Oxygen ◽  
Real Time ◽  
Metal Organic Frameworks ◽  
Real Time Monitoring ◽  
Oxygen Sensitive ◽  
Metal Organic

scholarly journals A data mining approach to evaluate suitability of dissolved oxygen sensor observations for lake metabolism analysis

2018 ◽  
Vol 16 (11) ◽  
pp. 787-801 ◽  
Author(s):  
Kohji Muraoka ◽  
Paul Hanson ◽  
Eibe Frank ◽  
Meilan Jiang ◽  
Kenneth Chiu ◽  
...  
Keyword(s):  
Data Mining ◽  
Dissolved Oxygen ◽  
Oxygen Sensor ◽  
Lake Metabolism ◽  
Data Mining Approach ◽  
Metabolism Analysis

Response to Comment on “Solubility Enhancement and Fluorescence Quenching of Pyrene by Humic Substance:  The Effects of Dissolved Oxygen on Quenching Processes”

1996 ◽  
Vol 30 (4) ◽  
pp. 1409-1410 ◽  
Author(s):  
Yu-Ping Chin ◽  
Jeffrey M. Buterbaugh ◽  
Terry J. Gustafson ◽  
Samuel J. Traina ◽  
Karlin M. Danielsen
Keyword(s):  
Fluorescence Quenching ◽  
Dissolved Oxygen ◽  
Humic Substance ◽  
Solubility Enhancement
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