Characterization of indicator electrodes using the potentiometric biosensor method as urea sensor with XRD, SEM-EDS, UV-Vis and FTIR

Hakim, Syamsul; Sembiring, Timbangen; Sebayang, Krista; Situmorang, Manihar; Tarigan, Kerista; Sembiring, Kurnia; Mihardi, Satria; Waruwu, E. N.

doi:10.1088/1742-6596/1816/1/012088

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…and El-Tohamy, M. F., 2020) have used the characterization of UV-Vis, FT-IR, XRD, and EDX spectroscopic methods in determining the calibration curve of the potentiometric system of the o-NPOE modified coated wire membrane sensor. There was a change in the XRD spectrum pattern (Hakim et al, 2021) of KTpClPB as shown in Figure 4. E.H., 2019) CE NaTPB ionophore based polymer membrane sensor with incorporation of anionic additives; potassium tetrakis(pchlorophenyl)borate (KTpClPB) produces an excellent "CE NaTPB/KTpClPB" sensor.…”

Section: Xrd Characterization Results Using O-npoementioning

confidence: 95%

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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Section: Xrd Characterization Results Using O-npoementioning

confidence: 95%

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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“…The results of SEM morphology analysis showed that the electrodes denoted B1-4 had more pores and the electrodes denoted B3-4 had large pores but there were cracks or fractures. The best results of the next B1-4 and B3-4 analysis were analyzed using FTIR [4]. Based on the four-step sequence of analysis [5; 6] this is where the researchers continued to analyze the indicator electrode using a potentiometric cell with the biosensor potentiometric method of the urease enzyme immobilization technique.…”

Section: Introductionmentioning

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 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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Characterization of indicator electrodes using the potentiometric biosensor method as urea sensor with XRD, SEM-EDS, UV-Vis and FTIR

Cited by 2 publications

References 16 publications

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 SEM-EDS, FTIR and XRD analysis

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

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