Design of a Novel Gadolinium Optical Sensor Based on Immobilization of (Z)-N′-((Pyridine-2-yl) Methylene) Thiophene-2-carbohydrazide on a Triacetylcellulose Membrane and Its Application to the Urine Samples

Zare-Dorabei, R.; Norouzi, Parviz

doi:10.1080/00032710802518213

Cited by 9 publications

(7 citation statements)

References 37 publications

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“…Various analytical methods have been proposed for the determination of copper at low concentration levels. Most of them are photometric methods, flame atomic absorption spectroscopy, graphite furnace atomic absorption spectroscopy, inductively coupled plasma emission spectrometry and voltammetry . A variety of reagents have been used for constructing copper optodes.…”

Section: Introductionmentioning

confidence: 99%

“…Most of them are photometric methods, flame atomic absorption spectroscopy, graphite furnace atomic absorption spectroscopy, inductively coupled plasma emission spectrometry and voltammetry. [14][15][16][17] A variety of reagents have been used for constructing copper optodes. These reagents include nitroso-R-salt, [18] fast sulphon black F, [19] zincon, [20] Lucifer yellow, [21] 4-decyloxy-2-(2-pyridylazo)-1-naphthol, [22] PAN, [23] 1,10-dibenzyl-1,10-diaza-18-crown-6 and 1-(2pyridylazo)-2-naphthol, [24,25] pyrocatechol violet, [25] salophen, [26] dithizone, [14] 1-hydroxy-3,4-dimethyl-9-H-thioxanthen-9-one, [27] N,N-bissalicyliden-2,3-diaminobenzofuran, [28] bathocuproine [29] and calcein.…”

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confidence: 99%

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Design of a novel optical sensor for determination of trace amounts of copper by UV–visible spectrophotometry in real samples

Pourbasheer

Morsali

Azari

et al. 2017

Applied Organom Chemis

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A new optical chemical sensor is established for sensitive and selective spectrophotometric detection of copper based on the immobilization of 3‐(2‐methyl‐2,3‐dihydro‐1,3‐benzothiezol‐2‐yl)‐2H‐chromen‐2‐one on a triacetylcellulose membrane. Copper ions react with the immobilized ligand and cause an increase in the absorption of the membrane at 550 nm in universal buffer solution at pH = 6. The effects of pH, indicator concentration and reaction time on the immobilization of the ligand were studied. This optode exhibits a linear range of 7.0 × 10−7 to 1 × 10−4 mol l−1 of copper ion concentration with a limit of detection of 3.0 × 10−7 mol l−1. The response time of the newly designed optode is within 3 min. The effect of different possible interfering species was investigated and it was found that the sensor has very good selectivity. The proposed sensor benefits from advantages such as low cost, high stability, low detection limit, fast response time, reproducibility, relatively long lifetime, and good selectivity for Cu2+ ion determination among a large number of alkali, alkaline earth, transition and heavy metal ions. The sensor can readily be regenerated with thiourea solution and its response is reversible and reproducible (relative standard deviation < 1.4%). The proposed optode was applied successfully for the determination of Cu(II) in various samples.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Design of a novel optical sensor for determination of trace amounts of copper by UV–visible spectrophotometry in real samples

Pourbasheer

Morsali

Azari

et al. 2017

Applied Organom Chemis

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“…Optical sensors, besides Lu(III) potentiometric ion-selective electrodes which have been already reported [13][14][15][16] , can be proper for the Lu(III) assessment, as they may easily be incorporated into low cost, easy to use kits. Furthermore, they can offer the required selectivity and sensitivity for the environmental monitoring [17][18][19][20][21][22] . Basic principles and theoretical description of bulk optode membranes, based on the reversible mass analyte transfer from sample in the bulk of the sensing layer have been well elucidated [23][24][25] .…”

Section: Introductionmentioning

confidence: 99%

Design and fabrication of a novel optical sensor for determination of trace amounts of lutetium ion

Zare‐Dorabei¹,

Ganjali²,

Rahimi³

et al. 2013

10.5267/j.ccl

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In this study, for the first time we report a highly selective and sensitive lutetium ions chemical optical sensor based on immobilization of a asymmetrically S-N Schiff's base, namely N-(thien-2-ylmethylene)pyridine-2,6-diamine (TPD) on a triacetylcellulose membrane. This optode exhibits a linear range of 5.0 ×10 -7 -1.0 ×10 -5 M of the Lu(III) ion concentration with a detection limit of 9.3 ×10 -8 M at a wavelength of 336 nm. The influence of responsible factors for improving sensitivity of the sensor was studied and identified. Response time of the newly designed optode was within 20-30 s depending on the Lu(III) ion concentration. Response of the optical sensor is independent of the pH of the solution in the range of 3.0-9.0. It manifests advantages of fast response time, low detection limit and most significantly, very good selectivity with respect to a number of lanthanide ions. The sensor can readily be regenerated with thiourea solutions and its response was reversible and reproducible. This optode was applied to the determination of Lu(III) in aqueous and CRM samples.

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“…The gold standard technique for quantifying gadolinium in urine is mass spectrometry, which can be both cost- and time-intensive, and further requires sample digestion before analysis. Although several assays can detect free Gd 3+ cations in buffer, − to the best of our knowledge, there is no assay capable of quantifying GBCAs in urine.…”

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Rapid Detection of Gadolinium-Based Contrast Agents in Urine with a Chelated Europium Luminescent Probe

Pallares

Tewari

et al. 2020

ACS Sens.

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Gadolinium-based contrast agents are widely used in magnetic resonance imaging procedures to enhance image contrast. Despite their ubiquitous use in clinical settings, gadolinium is not an innocuous element, as suggested by several disorders associated with its use. Therefore, novel analytical technologies capable of tracking contrast agent excretion through urine are necessary for optimizing patient safety after imaging procedures. Here, we describe an assay to detect and quantify contrast agents in urine based on the luminescence quenching of a metal chelate probe, Eu3+–3,4,3-LI(1,2-HOPO), which only requires 10 min incubation before measurement. Gadolinium-based contrast agents prevent the formation of the Eu3+–3,4,3-LI(1,2-HOPO) complex, subsequently decreasing the luminescence of the assay solution. Three commercial contrast agents, Magnevist, Multihance, and Omniscan, were used to demonstrate the analytical concept in synthetic human urine, and subsequent quantification of mouse urine samples. To the best of our knowledge, this is the first assay capable of detecting and quantifying gadolinium-based contrast agents in urine without sample preparation or digestion.

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Design of a Novel Gadolinium Optical Sensor Based on Immobilization of (Z)-N′-((Pyridine-2-yl) Methylene) Thiophene-2-carbohydrazide on a Triacetylcellulose Membrane and Its Application to the Urine Samples

Cited by 9 publications

References 37 publications

Design of a novel optical sensor for determination of trace amounts of copper by UV–visible spectrophotometry in real samples

Design of a novel optical sensor for determination of trace amounts of copper by UV–visible spectrophotometry in real samples

Design and fabrication of a novel optical sensor for determination of trace amounts of lutetium ion

Rapid Detection of Gadolinium-Based Contrast Agents in Urine with a Chelated Europium Luminescent Probe

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