A bimodal optoelectronic flow-through detector for phosphate determination

Fiedoruk, Marta; Mieczkowska, Elżbieta; Koncki, Robert; Tymecki, Łukasz

doi:10.1016/j.talanta.2014.04.086

Cited by 18 publications

(7 citation statements)

References 37 publications

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“…In the case of spectrophotometric detectors, important progress was made in the replacement of simple flow cuvettes with long pathway detectors, utilizing multiple internal reflection [96], in conducting absorption measurements in cuvettes packed with solid sorbents on the optical pathway [97], or in the use of optoelectronic elements as a light source [98], as well as a detector. The simultaneous use of several different light-emitting diodes (LEDs) as a light source allows carrying out multi-analyte detection [99], while a suitable design of the detector cell enables conducting absorptive, fluorometric [100], nephelometric, and turbidimetric detections [101]. The development of common types of electrochemical detectors (thin-layer, wall-jet, wire, cascade, or multi-array detectors) was accompanied by the search of new electrode materials and surface modification of the working electrode surface, especially with biochemical receptors and nanomaterials [102].…”

Section: Detectors Reactors Manifoldsmentioning

confidence: 99%

Flow Chemistry in Contemporary Chemical Sciences: A Real Variety of Its Applications

Trojanowicz

2020

Molecules

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Flow chemistry is an area of contemporary chemistry exploiting the hydrodynamic conditions of flowing liquids to provide particular environments for chemical reactions. These particular conditions of enhanced and strictly regulated transport of reagents, improved interface contacts, intensification of heat transfer, and safe operation with hazardous chemicals can be utilized in chemical synthesis, both for mechanization and automation of analytical procedures, and for the investigation of the kinetics of ultrafast reactions. Such methods are developed for more than half a century. In the field of chemical synthesis, they are used mostly in pharmaceutical chemistry for efficient syntheses of small amounts of active substances. In analytical chemistry, flow measuring systems are designed for environmental applications and industrial monitoring, as well as medical and pharmaceutical analysis, providing essential enhancement of the yield of analyses and precision of analytical determinations. The main concept of this review is to show the overlapping of development trends in the design of instrumentation and various ways of the utilization of specificity of chemical operations under flow conditions, especially for synthetic and analytical purposes, with a simultaneous presentation of the still rather limited correspondence between these two main areas of flow chemistry.

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Section: Detectors Reactors Manifoldsmentioning

confidence: 99%

Flow Chemistry in Contemporary Chemical Sciences: A Real Variety of Its Applications

Trojanowicz

2020

Molecules

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“…ABTPPO was used as a flame retardant curing agent, and used to prepare a novel halogen-free flame retardant EPO composite. 64 In addition to a reported of a miniature flow-through detector methods useful for bimodal, photometric and fluorimetric, determination of phosphates 65 and A simple manifold flow injection analysis (FIA) for determining phosphorus in the presence of arsenate in water 66 …”

Section: Spectrophotometric Determinations Of Phosphorusmentioning

confidence: 99%

Fused Heterocyclic Nitrogen Systems Containing Phosphorus Atom

Bakhotmah¹,

Abdel-Rahman²

2015

Orient. J. Chem

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“…Koncki et al reported the use of LEDs for both absorption and fluorescence measurement. 25,26 The PEDD has been employed in the analysis of physiological samples, [27][28][29][30][31][32][33][34][35][36][37][38][39][40] drink and food samples [41][42][43][44] and environmental samples. 45 There are also reports of dual analysis employing PEDDs, for example, multicommutated flow (MCFA) system for the determination of activity of acid phosphate and alkaline phosphatase, 46 sequential injection (SI) system for quantitative measurement of sucrose and phosphate, 47 MCFA system for determination of phosphate and calcium, 48 MCFA system for total protein and creatinine analysis 49 and MCFA system for investigation of iron-transferrin and apotransferrin speciation in human serum.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Colorimetric Measurements of Antioxidant Capacity by Flow Injection Analysis with Paired Emitter Detector Diode

et al. 2019

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An effective flow injection analysis (FIA) system employing paired emitter detector diode (PEDD) for simultaneous dual antioxidant assays is proposed. The total antioxidant capacity (TAC) was measured using the 2,2′-azino-bis(3ethylbenzothiazoline-6-sulfonic acid) (ABTS) assay in parallel with the ferric reducing antioxidant power (FRAP) assay. Ascorbic acid was used as the reference antioxidant and the TAC value reported as ascorbic acid equivalent (AAE). A 10port valve furnished with two injection loops allowed the sample from one loop to react with the ABTS reagent and be detected by one PEDD. At the same time, the sample from the second loop reacted with the FRAP reagent and is detected at the second PEDD. A pair of red light emitting diodes (634 nm) was employed for both PEDDs. The linearity range was 10 to 50 μM ascorbic acid, with limit of detection of 3.18 and 4.37 μM, and precision of 2.41 and 2.15% RSD (for 30 μM ascorbic acid, n = 10) for the ABTS and FRAP assay, respectively. Sample throughput of 90 samples/h was achieved. The method was applied to the measurement of TAC of commercial fruit juice, instant tea products and vitamin C tablets. The observed AAE values were in good agreement with those obtained using batch methods with a spectrophotometer.

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A bimodal optoelectronic flow-through detector for phosphate determination

Cited by 18 publications

References 37 publications

Flow Chemistry in Contemporary Chemical Sciences: A Real Variety of Its Applications

Flow Chemistry in Contemporary Chemical Sciences: A Real Variety of Its Applications

Fused Heterocyclic Nitrogen Systems Containing Phosphorus Atom

Simultaneous Colorimetric Measurements of Antioxidant Capacity by Flow Injection Analysis with Paired Emitter Detector Diode

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