ozone-induced chemiluminescence detection

US5614417A - Sulfur chemiluminescence detection …

Sulfur chemiluminescence detection method Download PDF Info Publication number US5614417A. US5614417A US08/484,023 US48402395A US5614417A US 5614417 A US5614417 A US 5614417A US 48402395 A US48402395 A US 48402395A US 5614417 A US5614417 A US 5614417A Authority US United States Prior art keywords flame burner sulfur hydrogen

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Can breath isoprene be measured by ozone chemiluminescence?

We investigated the merits and pitfalls of isoprene measurement via its chemiluminescence (CL) reaction with ozone. For many subjects, apparent concentrations measured are higher than those obtained by a gas chromatography (GC) reference method that can be traced to ozone-induced CL with simultaneously present lower olefins and sulfur compounds.

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A Rapid Quantitative Chemiluminescence Immunoassay for ...

A Rapid Quantitative Chemiluminescence Immunoassay for Vitamin B12 in Human Serum Clin Lab. 2020 Mar 1;66(3). doi: 10.7754/Clin.Lab.2019 .190604 ... few can be used for human serum detection of vitamin B12 because of disturbed releasing process. In this study, we are aiming to develop a rapid and accurate chemiluminescence immunoassay ...

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Evaluation of ultraviolet light-emitting diodes for ...

Feb 19, 2011 · The photolysis-chemiluminescence (P-CL) technique is a well-known and commonly used method for field measurements of ambient nitrogen dioxide (NO 2).This technique involves photolysis of ambient NO 2 (Kley and McFarland 1980) followed by gas-phase ozone-induced chemiluminescence (CL) detection of the product nitric oxide (NO) (Clyne et al. 1964; Fontijn et al. …

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Fast Isoprene Sensor | Hills-Scientific

Isoprene/ozone chemiluminescence measurement is extremely sensitive as the reaction has a high quantum efficiency for light production in addition to the light appearing on a near-zero background and since single-photon counting detection is used in all our instruments. ... Isoprene Measurement by Ozone-Induced Chemiluminescence, Analytical ...

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A novel ozone sensor for direct eddy flux measurements ...

May 13, 2004 · A small, lightweight (1.5 kg) and fast-response ozone sensor for direct eddy flux measurements has been built. The basis for detection is the chemiluminescence of an organic dye adsorbed on dry silica gel in the reaction with ozone. The chemiluminescence is monitored with a cheap and small blue-sensitive photomultiplier. At a flow rate of 100 l min-1 the ozone sensor has a 90% …

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ERIC - ED094941 - A Chemiluminescence Detector for Ozone ...

An ozone detector was built and evaluated for its applicability in smog chamber studies. The detection method is based on reaction of ozone with ethylene and measurement of resultant chemiluminescence. In the first phase of evaluation, the detector's response to ozone was studied as a function of several instrument parameters, and optimum conditions were defined for maximum and most stable ...

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Research Publications – ASTech

A brief history and recent advances in ozone induced chemiluminescence detection for the determination of sulfur compounds by gas chromatography: Luong, J., Gras, R., Hawryluk, M., Shearer, R. Analytical Methods, 2016, 8, 7014-7024: 2016: Trace-level screening of dichlorophenols in processed dairy milk by headspace gas chromatography

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Chemiluminescence | Lumigen

Measurement Basics The attractiveness of chemiluminescence as an analytical tool is the simplicity of detection. The fact that a chemiluminescent process is, by definition, its own light source means that assay methods and the instruments used to perform them need only provide a way to detect light and record the result. Luminometers need consist of only a light-tight sample

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ERIC - ED094941 - A Chemiluminescence Detector for Ozone ...

An ozone detector was built and evaluated for its applicability in smog chamber studies. The detection method is based on reaction of ozone with ethylene and measurement of resultant chemiluminescence. In the first phase of evaluation, the detector's response to ozone was studied as a function of several instrument parameters, and optimum conditions were defined for maximum and most stable ...

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ozone-induced chemiluminescence detection

May 21, 1999 · The core of an ozone-induced chemiluminescence detection system is invariably a light-tight gas chamber where ozone and a chemiluminescent species mix and react to produce a metastable species that chemiluminesces. The emission is detected by a photon-sensing device, usually a photomultiplier tube (PMT). Get Price. Chat With ...

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Observations of ozone transport from the free troposphere ...

Mar 09, 2012 · [10] Two independent instruments measured ozone, NO, and NO 2: a chemiluminescence detector (CLD) and a cavity ring-down spectrometer. Ozone measured by NO-induced chemiluminescence [ Ryerson et al. , 1998 ] had an uncertainty of ± (2% + 0.015 ppbv), and NO measured by ozone induced chemiluminescence had an uncertainty of ± (3% + 0.01 ppbv).

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A highly sensitive fluorescent probe for ozone based on ...

Apr 07, 2021 · Ozone is widely used in daily life, but studies have shown that O3 can damage human trachea and lungs, leading to diseases such as asthma, emphysema, and bronchitis. Therefore, it is of great significance to develop a simple and efficient detection method for monitoring O3 in living cells. In this study, 3-(but-3-en-1-yl)-2-(7-(but-3-en-1-yloxy)-2-oxo-2H-chromen-3-yl)benzo[d]thiazol-3-ium (BCT ...

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Detection by ozone-induced chemiluminescence in ...

The conversion of nearly all nitrogen- and sulfur-containing compounds to their respective chemiluminescent species for universal nitrogen and sulfur detection has made nitrogen/sulfur chemiluminescence detection the most widely used analytical methods based upon ozone-induced chemiluminescence. In addition to non-chromatographic applications, nitrogen/sulfur chemiluminescence detection …

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US5614417A - Sulfur chemiluminescence detection method ...

US5614417A US08/484,023 US48402395A US5614417A US 5614417 A US5614417 A US 5614417A US 48402395 A US48402395 A US 48402395A US 5614417 A US5614417 A US 5614417A Authority US United States Prior art keywords flame burner sulfur hydrogen stage Prior art date 1993-10-07 Legal status (The legal status is an assumption and is not a legal conclusion.

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Sulfur Chemiluminescence Detector (SCD) | JSB

The reimagined and redesigned Agilent 8355 SCD represents the first major advance in sulfur chemiluminescence detection in 25 years, making the technology more reliable and easier to use. Highly sensitive and highly specific, the reimagined detector is also easier to maintain, thanks to a simplified burner design with 50 percent fewer components.

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ozone-induced chemiluminescence detection

May 21, 1999 · The core of an ozone-induced chemiluminescence detection system is invariably a light-tight gas chamber where ozone and a chemiluminescent species mix and react to produce a metastable species that chemiluminesces. The emission is detected by a photon-sensing device, usually a photomultiplier tube (PMT). Get Price. Chat With ...

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Acute Ozone-Induced Pulmonary and Systemic Metabolic ...

Ozone-induced hyperglycemia and glucose intolerance were markedly attenuated in DEMED rats with nearly complete reversal in ADREX rats. Ozone increased circulating epinephrine and corticosterone in SHAM but not in DEMED or ADREX rats. ... (BCAA) were measured in serum using ELISA kits and the protocol based on chemiluminescence detection (Abcam ...

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Chemiluminescence | Lumigen

Measurement Basics The attractiveness of chemiluminescence as an analytical tool is the simplicity of detection. The fact that a chemiluminescent process is, by definition, its own light source means that assay methods and the instruments used to perform them need only provide a way to detect light and record the result. Luminometers need consist of only a light-tight sample

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ozone-induced chemiluminescence detection

May 21, 1999 · The core of an ozone-induced chemiluminescence detection system is invariably a light-tight gas chamber where ozone and a chemiluminescent species mix and react to produce a metastable species that chemiluminesces. The emission is detected by a photon-sensing device, usually a photomultiplier tube (PMT). Get Price. Chat With ...

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Sulfur Chemiluminescence Detector (SCD) | JSB

The reimagined and redesigned Agilent 8355 SCD represents the first major advance in sulfur chemiluminescence detection in 25 years, making the technology more reliable and easier to use. Highly sensitive and highly specific, the reimagined detector is also easier to maintain, thanks to a simplified burner design with 50 percent fewer components.

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