Development of a highly sensitive and selective optical sensor for determination of ultra-trace amount of silver ions

Firooz, Alireza; Ensafi, Ali A.; Kazemifard, Nafiseh; Khalifeh, Reza

doi:10.1016/j.snb.2012.10.045

Cited by 27 publications

(12 citation statements)

References 36 publications

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“…The selection of these bulk optodes is mainly because of their stability under different conditions and the possibility of tuning their electronic and steric features [31]. This method have been used successfully to analyze some metal cations such as Cr(III) [32], Ce(III) [33], Co(II) [34], Fe(III) [35,36], Pb(II) [37] and Ag(I) [38]. Nevertheless, only few articles have been reported the use of Schiff base ionophores for monitoring the anions [25,39].…”

Section: Eurasian Chemical Communicationsmentioning

confidence: 99%

Introduction of a new nitrite-selective optical sensor for food analysis using a copper(II) Schiff base complex

Habibzadeh

Tavallail

Esmaielzadeh

et al. 2020

Eurasian Chem. Commun.

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A copper(II) Schiff base complex, [Cu(cd4OMeSalMeen)], methyl-2-{[1-methyl-2-(4methoxy-phenolate)mehylidynenitrilo]ethyl}amino-1-cyclopentene dithiocarboxylate copper(II), was incorporated into triacetylcellulose membrane and applied as ionophore in order to develop an anion-selective optical sensor for the analysis of nitrite by absorption spectrophotometry. At optimum pH 3.0, a linear calibration curve was observed for nitrite in the range of 0.50 to 7.00 mgL -1 with a detection limit of 0.04 mgL -1 . The response time of the optode (t95%) was found to be 8-10 min, depending on the nitrite ion concentration. The proposed sensor was fully recovered in nitric acid solution (0.1 M) and had acceptable reproducibility (RSD=1.9%). The optode exhibited good selectivity toward nitrite ion according to hard-soft acid base (HSAB) principle and the formation constant was calculated. The application of the sensor for determination of nitrite content in meat products was quiet successful.

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Section: Eurasian Chemical Communicationsmentioning

confidence: 99%

Introduction of a new nitrite-selective optical sensor for food analysis using a copper(II) Schiff base complex

Habibzadeh

Tavallail

Esmaielzadeh

et al. 2020

Eurasian Chem. Commun.

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“…[1][2][3][4][5] Silver ions, as heavy metal ions, in comparison with Cr 3+ , Cd 2+ , Hg 2+ , and Cu 2+ , are one of the most poisonous types of toxic ions. 6 Ag + can be predigested in the lungs, mucous membranes, gastrointestinal tract, and also the skin. Very low concentrations of silver are in the human body but it does not play any biochemical or physiological role in the body.…”

Section: Introductionmentioning

confidence: 99%

Quantification of silver in several samples using a new ionophore polymer membrane as an optical sensor

2021

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“…Although there is a variety of techniques for the determination of dyes, some of them have limitations and problems related to sample preparation, consuming a lot of time for analysis, high costs and the use of large amounts of solvents [15]. For this reason, an alternative that can be interesting, simple and promising for the detection and quantification of dyes is the use of molecularly imprinted polymers (MIP) to extract a specific or a class of dye in a more complex sample [16,17].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and evaluation of a molecularly imprinted polymer for selective adsorption and quantification of Acid Green 16 textile dye in water samples

Foguel

Pedro

Wong

et al. 2017

Talanta

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An alternative for determining environmental pollutants, like textile dyes, is the use of molecularly imprinted polymers (MIPs) as solid phase extraction (SPE) or as sensor recognition systems. MIPs are tailor-made artificial receptor sites in a polymer, which present good affinity and selectivity. This work shows the synthesis of MIPs for the Acid Green 16 (AG16) textile dye and the results of rebinding, selectivity and application of this MIP in water samples. MIP synthesis was performed using AG16 dye (template), 1-vinylimidazole (functional monomer), ethylene-glycol-dimethacrylate (cross-link), 2,2'-azobis(2-methylpropionitrile) (initiator) and methanol (solvent) by bulk synthesis. The imprinted polymer presented excellent rebinding of 83%, an imprinted factor of 6.91 and great selectivity in comparison with other textile dyes. Additionally, the MIP showed high efficiency in the extraction of this dye in water samples, presenting a recovery rate close to 100% and a better performance when compared to commercial SPE cartridges. Due to this excellent performance for AG16, the application of this MIP to determine dyes in different matrices of environmental importance is promising.

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Development of a highly sensitive and selective optical sensor for determination of ultra-trace amount of silver ions

Cited by 27 publications

References 36 publications

Introduction of a new nitrite-selective optical sensor for food analysis using a copper(II) Schiff base complex

Introduction of a new nitrite-selective optical sensor for food analysis using a copper(II) Schiff base complex

Quantification of silver in several samples using a new ionophore polymer membrane as an optical sensor

Synthesis and evaluation of a molecularly imprinted polymer for selective adsorption and quantification of Acid Green 16 textile dye in water samples

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