Flow injection analysis with chemiluminescence detection: determination of hydrazine

Faizullah, Azad T.; Townshend, Alan; Hughes, Arwel; Worsfold, Paul J.; Appleton, John M. H.; Tyson, Julian F.; Sarkissian, Lala L.; LeBorgne, L. D.; Lyle, Samuel J.; Pearson, Calvin H.; Burns, D. Thorburn; Dalgarno, B. G.; Flockhart, B. D.; Gaffney, Marcus H.; Cooke, Michael

doi:10.1039/ap9852200015

Cited by 26 publications

(10 citation statements)

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“…The position of the confluence point is crucial for chemiluminescence detection in FIA or HPLC that involves fast lightproducing reactions and it is thought that ideally, the solutions should merge as close as possible to the point of detection. 4,19,20 We previously constructed a dual-inlet serpentine flow-cell ( Fig. 4a) that enabled solutions to be merged directly in front of the photodetector window.…”

Section: Confluence Point and Mixing Chambermentioning

confidence: 99%

“…6 To attain the greatest emission intensity within the flow-cell, the position of the confluence point is crucial, and for relatively fast chemiluminescence reactions it is generally thought that the solutions should merge at or as close as possible to the point of detection. 4,19,20 In our initial investigation of the GloCel detector, we examined two disks with serpentine channels. One contained a single inlet, in which case solutions were merged at an external Y-piece shortly before entering the flow-cell.…”

Section: Introductionmentioning

confidence: 99%

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Solution mixing and the emission of light in flow-cells for chemiluminescence detection

Terry

Zammit

Slezak

et al. 2011

Analyst

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Constructing flow-through reactors for chemiluminescence detection by machining channels into polymer disks has enabled the exploration of new configurations and materials that can improve signal intensity beyond that attainable with the traditional coiled-tubing design. Several approaches to merge reactant solutions were examined: an intersection, chamber or deeper well in the centre of a serpentine configuration flow-cell (directly in front of a photomultiplier tube), or a confluence point outside the detection zone. For several analytically useful, rapid chemiluminescence reactions, the single-inlet flow-cell with external Y-piece was most suitable, but for others (such as KMnO(4)/Mn(II) with morphine, and [Ir(f-ppy)(2)BPS](-) with fluoroquinolones) the dual-inlet configuration provided greater signals. The introduction of central mixing zones with larger widths than the channel reduced the chemiluminescence response. The reversing turns of a serpentine channel promote efficient mixing and greater chemiluminescence intensities than a spiral channel, but increasing the sharpness of the turns created areas of poor solution flow and decreased the chemiluminescence response. Teflon disks impregnated with glass microspheres increased the chemiluminescence signals by 13%-17%, due to the greater reflection of stray light towards the photodetector.

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Section: Confluence Point and Mixing Chambermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Solution mixing and the emission of light in flow-cells for chemiluminescence detection

Terry

Zammit

Slezak

et al. 2011

Analyst

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“…The pioneering work was with luminol and further examples were discovered among the linear acyl hydrazides . Hydrazine itself has been reported to be chemiluminescent on oxidation . Phenylhydrazine and a range of nitro‐substituted phenylhydrazines in propan‐2‐ol solutions have been found to be chemiluminescent on oxidation with acidified potassium permanganate and were applied for the determination of carbonyl compounds.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the chemiluminescence reaction of the phenylhydrazine‐luminol–peroxide system

Chandel¹,

Khan²,

Kher³

et al. 2012

Luminescence

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We studied the chemiluminescence (CL) oxidation of phenyl hydrazine-luminol with various organic and inorganic peroxides. Maximum CL intensity for this system was obtained for t-butylhydroperoxide. The enhancement in CL depended strongly on pH and was greatest at pH 12.5. The solvent drastically enhanced the CL intensity. DMSO was found to increase the CL intensity many-fold as compared to acetonitrile and water. The effect of temperature on CL intensity has also been studied. The CL spectra revealed a broad peak at 425 nm, which suggests excited 3-aminophthalate ion as the luminophor. A mechanism to explain the reactions is suggested.

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“…However, hydrazine derivatives and amines may interfere. A chemiluminescence method for the determination of hydrazine oxidized by hypochlorite under basic conditions has been presented (6). This method is also not specific for hydrazine.…”

Section: Introductionmentioning

confidence: 99%

Automatic Injection Analysis with Chemiluminescence Detection: Determination of Hydrazine

Liu

Luo

et al. 1996

Microchemical Journal

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Flow injection analysis with chemiluminescence detection: determination of hydrazine

Cited by 26 publications

References 0 publications

Solution mixing and the emission of light in flow-cells for chemiluminescence detection

Solution mixing and the emission of light in flow-cells for chemiluminescence detection

Investigation on the chemiluminescence reaction of the phenylhydrazine‐luminol–peroxide system

Automatic Injection Analysis with Chemiluminescence Detection: Determination of Hydrazine

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