Optical chemical sensors (Micro- and Nanosystems) for analysis of liquids

Саввин, С. Б.; Kuznetzov, V. V.; Sheremet’ev, S. V.; Mikhailova, A. V.

doi:10.1134/s1070363208120244

Cited by 8 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A promising direction in the development of meth ods for the control of metal concentrations in various objects is the creation of optical sensors [1][2][3][4]. Among their advantages are low cost, miniaturization, and automation of control.…”

mentioning

confidence: 99%

A colorimetric sensor based on a polymethacrylate matrix with immobilized 1-(2-pyridylazo)-2-naphthol for the determination of cobalt

2015

View full text Add to dashboard Cite

A colorimetric sensor is proposed for the determination of cobalt. It is prepared by immobilizing 1 (2 pyridylazo) 2 naphthol (PAN) in an optically transparent polymethacrylate matrix. The conditions for determining cobalt by the proposed colorimetric sensor are found in the study of the complexation of cobalt with a PAN modified polymethacrylate matrix. The determination is based on the interaction of the sensor with a cobalt solution at pH 4 for 5 min, followed by the measurement of absorbance at 620 nm. The sensor ensures the determination of 0.05-0.50 mg/L of cobalt with the detection limit 0.03 mg/L. It is demonstrated that the sensor can be used for the determination of cobalt in the Cyanocobalamin medical preparation and potable water.

show abstract

mentioning

confidence: 99%

A colorimetric sensor based on a polymethacrylate matrix with immobilized 1-(2-pyridylazo)-2-naphthol for the determination of cobalt

2015

View full text Add to dashboard Cite

show abstract

“…A promising method for producing such test systems is to immobilise ionophores in the polymer matrix. Corresponding fluorophores and ionophores can be both dissolved in the polymer and chemically bound with it [9,10]. However, a number of special requirements are laid down for the material of the polymer matrix: the polymer must be insoluble in water, have good miscibility with sensor compounds, and ensure easy access to these compounds for metal salts dissolved in water.…”

Section: Introductionmentioning

confidence: 99%

New Polymer Matrices for Chemical Optical Sensors

Baranov

Istratov

Васнев

2012

International Polymer Science and Technology

View full text Add to dashboard Cite

New comb-shaped polymers containing side polyoxyethylene blocks were synthesised. For the case of model compounds, the possibility of using the polymers obtained as matrices of chemical optical sensors was assessed. The influence of the length and number of block substituents on the swelling of the polymers in water was investigated. Almost 100% binding of the model compounds by the polymer matrix was observed, and also the practically complete absence of hydrolysis of the model compounds for 1 h. The conducted investigations showed the promise of using the polymers obtained as matrices for chemical optical sensors.

show abstract