Colorimetric Polymethacrylate Sensor

2014 ◽  
Vol 880 ◽  
pp. 19-24 ◽  
Author(s):  
Nataliya A. Gavrilenko ◽  
Nadezda V. Saranchina ◽  
Aleksey V. Sukhanov ◽  
Mikhail A. Gavrilenko ◽  
Elena V. Zenkova
Keyword(s):  
Solid Phase ◽  
Colorimetric Sensor ◽  
Naked Eye ◽  
Sensing Material ◽  
Optically Transparent ◽  
Analytical Reagent ◽  
Polymethacrylate Matrix ◽  
Colorimetric Sensors

The paper describes a new colorimetric sensor. The colorimetric sensors were made of optically transparent polymethacrylate matrix with physically immobilized analytical reagent which is responsible for the extraction of the analyte into the sensing material and changing its color. The developed colorimetric sensor can be used in determination of various analytes using both solid-phase spectrophotometer and naked eye.

Colorimetric Determination of Metal Ions Using Smartphone

2018 ◽  
Vol 769 ◽  
pp. 235-241
Author(s):  
Eldar V. Urazov ◽  
Maria A. Gavrilenko ◽  
Mikhail K. Belikov
Keyword(s):  
Metal Ions ◽  
Color Change ◽  
Solid Phase ◽  
Colorimetric Determination ◽  
Phase Extraction ◽  
Colorimetric Analysis ◽  
Digital Photo ◽  
Visual Color ◽  
Polymethacrylate Matrix

The visible sensing determination with color change after solid phase extraction using polymethacrylate matrix and colorimetric smartphone-based technique have been highlighted. The smartphone-based method based on digital photo of transparent polymer optode for metal ions determination is proposed for diapason 0.02-60 mg/L. The optical property of polymer matrix enables a visual color change during its reaction with the analytes. Proposed method is compared with spectrophotometric and colorimetric analysis.

Solid phase colorimetric determination of iodine in food grade salt using polymethacrylate matrix

2019 ◽  
Vol 280 ◽  
pp. 15-19 ◽  
Author(s):  
Nataliya A. Gavrilenko ◽  
Dmitrii A. Fedan ◽  
Nadezhda V. Saranchina ◽  
Mikhail A. Gavrilenko
Keyword(s):  
Solid Phase ◽  
Colorimetric Determination ◽  
Food Grade ◽  
Polymethacrylate Matrix

Trace Determination of Rhodamine and Eosine in Oil-Water Reservoir Using Solid-Phase Extraction

2014 ◽  
Vol 880 ◽  
pp. 276-281 ◽  
Author(s):  
Mikhail A. Gavrilenko ◽  
Nataliya A. Gavrilenko ◽  
Shamshiya K. Amerkhanova ◽  
Aitolkyn S. Uali ◽  
Alisher A. Bilyalov
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Water Reservoir ◽  
Sample Volume ◽  
Batch Adsorption ◽  
Phase Extraction ◽  
Colorimetric Measurements ◽  
Oil Water ◽  
Polymethacrylate Matrix

A method for the trace analysis of rhodamine and eosine with colorimetric measurements based on solid-phase extraction (SPE) by transparent polymethacrylate matrix (PMM) is described. Solid-phase extraction on PMM allowed a 380-fold enrichment of the dyes if 10 mL sample volume is used with extraction efficiencies 98%. The method enables the determination of rhodamine to 0.06 mg/L and eosine to 1.2 mg/L combined with a fast and easy sample-preparation (pH-adjusting prior to SPE). Simultaneous extraction and determination of rhodamine and eosine in reservoir samples with high salinity confirmed the applicability and reproducibility of the method. Batch adsorption results indicated that Langmuir isotherm described the adsorption isotherms better.

scholarly journals Solid-phase spectrophotometric iodometric determination of iodate in food salt using а polymethacrylate matrix

2018 ◽  
Vol 22 (1) ◽  
pp. 69-74
Author(s):  
Dmitry A. Fedan ◽  
◽  
Nadezhda V. Saranchina ◽  
Nataliya A. Gavrilenko ◽  
Mikhail A. Proskurnin ◽  
...  
Keyword(s):  
Solid Phase ◽  
Polymethacrylate Matrix

scholarly journals Flow-Through Fluorescence-Based Optosensor with On-Line Solid-Phase Separation for the Simultaneous Determination of a Ternary Pesticide Mixture

2005 ◽  
Vol 88 (3) ◽  
pp. 860-865
Author(s):  
Eulogio J Llorent-Martínez ◽  
Juan F García-Reyes ◽  
Pilar Ortega-Barrales ◽  
Antonio Molina-Díaz
Keyword(s):  
Simultaneous Determination ◽  
Dynamic Range ◽  
Solid Phase ◽  
Environmental Water ◽  
Sample Volume ◽  
Solid Support ◽  
Sensing Material ◽  
Relative Standard ◽  
Flow Through

Abstract A rapid and selective method was developed for the simultaneous determination of 3 widely used pesticides, carbendazim (CBZ), carbofuran (CF), and benomyl (BNM). The method utilized a single continuous-flow, solid surface fluorometric multioptosensor implemented with a previous separation of the analytes on a minicolumn, placed just before the sensor, that was packed with the same solid support (C18 silica gel) as the flow-through cell. The separation was achieved because of the different kinetics of retention/elution of the pesticides on the solid support in the minicolumn, enabling the sequential arrival of the analytes at the sensing zone. With a single injection of the mixture, 2 of them were more strongly retained in the minicolumn (CF and BNM) while the other (CBZ) passed through the system towards the sensing material where it developed its fluorescence transitory signal. Then, CF and BNM were successively eluted from the solid support using 2 different eluting solutions, and they sequentially reached the sensing zone and developed their respective signals. A multiwavelength fluorescence detection mode was used, recording the signals of each pesticide at its maximum excitation/emission wavelength; therefore, the sensitivity was increased. The system was calibrated using a sample volume of 2000 μL. The linear dynamic range was 80–1400, 250–2400, and 150–2000 ng/mL with detection limits of 15, 68, and 35 ng/mL and relative standard deviation values of 3.5, 3.2, and 2.4% for CBZ, CF, and BNM, respectively. A recovery study was applied to spiked environmental water samples, and recoveries ranged from 96 to 104%.

Colorimetric determination of food colourants using solid phase extraction into polymethacrylate matrix

Talanta ◽  
2019 ◽  
Vol 202 ◽  
pp. 186-189 ◽  
Author(s):  
A.A. Dudkina ◽  
T.N. Volgina ◽  
N.V. Saranchina ◽  
N.A. Gavrilenko ◽  
M.A. Gavrilenko
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Colorimetric Determination ◽  
Phase Extraction ◽  
Polymethacrylate Matrix
Sign in / Sign up

Export Citation Format

Share Document