CHARACTERIZATION OF PVA-ENZYME COATED INDICATOR ELECTRODES GA COATED AGAIN WITH PVC-KTpCIPB-o-NPOE UV-Vis ANALYSIS, VARIABLE SIGNAL ANALYSIS, SENSOR SENSITIVITY AND SEM-EDS
| Main Author: | Hakim S., Abdul |
|---|---|
| Format: | Article PeerReviewed Book |
| Bahasa: | ind |
| Terbitan: |
, 2021
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| Subjects: | |
| Online Access: |
http://digilib.unimed.ac.id/47002/1/Fulltext.pdf http://digilib.unimed.ac.id/47002/2/Reviewer.pdf http://digilib.unimed.ac.id/47002/3/Turnitin.pdf http://digilib.unimed.ac.id/47002/4/Letter%20of%20Acceptance%20%28LoA%29.pdf http://digilib.unimed.ac.id/47002/ https://doi.org/10.29303/jppipa.v7iSpecialIssue.1248 |
Daftar Isi:
- 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%.