CHARACTERIZATION OF MEMBRANE PVA-ENZYME COATED PVC-KTpClPB AS UREA SENSOR WITH POTENTIOMETRIC METHOD

S., Abdul Hakim; Sembiring, Timbangen; Tarigan, Kerista; Sebayang, Krista; Situmorang, Manihar

doi:10.31788/rjc.2019.1225143

Cited by 4 publications

(4 citation statements)

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“…The substrate material is a PVA polymer for immobilizing the urease enzyme and PVC water-resistant material or a solution as a water-soluble PVA-Enzyme protector. Research has been carried out on indicator electrodes coated with PVA-enzyme coated with PVC-KTpClPB with a sensitivity of 19,069 mV/decade in a detection range of 1.10 -5 -5.10 -4 M with a detection limit of 1.10 -5 M and a correlation coefficient of R 2 = 0.9431 [1]. This electrode analysis has been characterized using SEM-EDX [2].…”

Section: Introductionmentioning

confidence: 99%

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Characterization of manufacturing indicator electrodes coated PVA-enzyme coated 1X GA and 3X GA 2.9 % coated PVC-KTpClPB coated using potentiometry method

Mihardi

Rais

et al. 2022

J. Phys.: Conf. Ser.

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Research has been carried out on the manufacture of tungsten indicator electrodes with a diameter of 1 mm coated with PVA-Enzyme coated with PVC-KTpClPB using the biosensor potentiometer method. It has a sensitivity of 19,096 mV/decade, a detection range of 1.10-5 - 5.10-4 M, a detection limit of 1.10-5 M and a correlation coefficient of R2 = 0.9431. This detection range is very small, only a difference of one order to the negative power. On the basis of this small range, the PVA-Enzyme and PVA-Enzyme-GA solutions have been characterized by UV-vis showing a very clear difference in the width of the absorbance peak at wavelength. The indicator electrodes B1-4 and B3-4 have been analyzed using UV-vis, FTIR, SEM-eds and XRD. The method used is the biosensor poteniometric method, urease enzyme immobilization technique, which analytes urea in determining sensitivity, detection range and detection limit, as well as variable signal analysis of 60 signals/second. The results obtained from the indicator electrode B1-4 have a sensitivity of 46.67 mV/decade, a detection range of 10-4 - 10-2 M and a detection limit of 10-4 M, R2 = 99.62 %. The indicator electrode B3-4 has a sensitivity of 38.16 mV/decade, a detection range of 10-6 - 10-4 M and a detection limit of 10-6 M, R2 = 95.42 %. The best results on electrodes B1-4.

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Section: Introductionmentioning

confidence: 99%

“…Research has been carried out on PVA-enzyme electrodes coated with PVC-plasticiser 19,069 mV/decade in the range from 1.10 -5 -5.10 -4 M with a detection limit of 1.10 -5 with R 2 = 94.31% using 0.001 M KCl phosphate buffer 0.001 M pH 7.5 [1].…”

mentioning

confidence: 99%

Characterization of manufacturing indicator electrodes coated PVA-enzyme coated 1X GA and 3X GA 2.9 % coated PVC-KTpClPB coated using potentiometry method

Mihardi

Rais

et al. 2022

J. Phys.: Conf. Ser.

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“…Research has been carried out on indicator electrodes coated with PVA-enzyme coated with PVC-KTpClPB with a detection range of 10-5-10-4M (Hakim, 2019). This electrode analysis has been characterized using SEM-EDS (Hakim, 2018).…”

Section: Introductionmentioning

confidence: 99%

Characterization of PVA-Enzyme Coated Indicator Electrodes GA coated again with PVC-KTpClPB-o-NPOE SEM-EDS, FTIR and XRD analysis

2022

jppipa, pendidikan ipa, fisika, biologi, kimia

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This study aims to characterize the tungsten-urea analyte indicator electrode. The method used is biosensor potentiometry with urease enzyme immobilization technique. This indicator electrode was coated with PVA-enzyme coated with glutaraldehyde (GA) 2.9% coated with PVC-KTpClPB- o-NPOE with o-NPOE variation of 61% and 66%. Characterization of coated indicator electrodes using SEM-EDS, FTIR and XRD analysis. A1-4 61% indicator electrode sample coated PVA-enzyme 1x coated with glutaraldehyde (GA) 2.9% 1x coated PVC-KTpClPB- o-NPOE 1x, with o-NPOE 61%. A3-4 61% indicator electrode sample coated PVA-enzyme 3x coated with glutaraldehyde (GA) 2.9% 1x coated PVC-KTpClPB- o-NPOE 1x, with o-NPOE 61%. Likewise, the reasoning of samples A1-4 66% and A3-4 66%. There are four indicator electrodes made with the notation A1-4 61%, A1-4 66%, A3-4 61% and A3-4 66%. The best results were obtained at the indicator electrode sample A1-4 61%, contributing to the urea sensor of the potentiometer cell

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“…Research has been carried out on indicator electrodes coated with PVA-enzyme coated with PVC-KTpClPB with a detection range of 10 -5 -10 -4 M (Hakim, 2019). This electrode analysis has been characterized using SEM-EDS (Hakim, 2018).…”

Section: Introductionmentioning

confidence: 99%

Characterization of PVA-Enzyme Coated Indicator Electrodes GA coated again with PVC-KTpClPB-o-NPOE UV-Vis analysis, variable signal analysis, sensor sensitivity and SEM-EDS

2021

jppipa, pendidikan ipa, fisika, biologi, kimia

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This study aims to characterize the phosphate buffer and urease enzymes through UV-Vis and SEM-EDS absorbance spectra using tungsten as an indicator electrode. The method used is a potentiometric biosensor with urease enzyme immobilization technique for urea analyte. A small detection range of 10-5-10-4M has been studied with PVA-enzyme coated indicator electrodes coated with PVC-KTpClPB. On this basis, the researchers increased the detection range by analyzing glutaraldehyde (GA) mixed with PVA-enzyme and o-NPOE mixed with PVC-KTpClPB. The best results of GA mixed PVA-enzyme at GA2.9% UV-Visible analysis. The best results were PVA-enzyme coated indicator electrodes coated with GA coated again with PVC-KTpClPB-o-NPOE SEM-EDS analysis on PVA-enzyme samples 3x coated with GA 1x and PVC-KTpClPB-o-NPOE 1x with o-NPOE variation of 61% and 66%.

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CHARACTERIZATION OF MEMBRANE PVA-ENZYME COATED PVC-KTpClPB AS UREA SENSOR WITH POTENTIOMETRIC METHOD

Cited by 4 publications

References 0 publications

Characterization of manufacturing indicator electrodes coated PVA-enzyme coated 1X GA and 3X GA 2.9 % coated PVC-KTpClPB coated using potentiometry method

Characterization of manufacturing indicator electrodes coated PVA-enzyme coated 1X GA and 3X GA 2.9 % coated PVC-KTpClPB coated using potentiometry method

Characterization of PVA-Enzyme Coated Indicator Electrodes GA coated again with PVC-KTpClPB-o-NPOE SEM-EDS, FTIR and XRD analysis

Characterization of PVA-Enzyme Coated Indicator Electrodes GA coated again with PVC-KTpClPB-o-NPOE UV-Vis analysis, variable signal analysis, sensor sensitivity and SEM-EDS

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