Chitosan as an ionophore in a polyvinyl chloride based electrode for pH detection (IR)
A heterogeneous membrane pH sensor based on chitosan, polyvinyl chloride (PVC) and a suitable plasticizer was developed. The best overall performance was shown by a membrane with composition ratio of chitosan (ionophore) : PVC (binder) : 2-nitrophenyl octyl ether (2-NPOE) (plasticizer) at 20 : 30 :...
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oai:ir.upsi.edu.my:23922020-02-27 Chitosan as an ionophore in a polyvinyl chloride based electrode for pH detection (IR) 2014 Mohd Hizuan Hamzah QD Chemistry A heterogeneous membrane pH sensor based on chitosan, polyvinyl chloride (PVC) and a suitable plasticizer was developed. The best overall performance was shown by a membrane with composition ratio of chitosan (ionophore) : PVC (binder) : 2-nitrophenyl octyl ether (2-NPOE) (plasticizer) at 20 : 30 : 30 (w/w) respectively. The potentiometric responses were linear within pH 2 to 9, limit of detection at pH 9.5, slope 56.6 0.4 mV per decade at 25.0 1.0 oC and response time of 20.0 5.0 seconds. A life time of more than 3 months was obtained. The sensor showed good selectivity and reproducibility towards hydrogen ion in the presence of a number interfering cations. Results were in agreement with a commercial pH electrode for pH measurement in fruit juice samples. The sensor has been utilized in the flow injection analysis (FIA) of pH at standard solution. The slope of 57.1 0.2 mV per decade was linear at pH range of 2 to 7 at 25.0 1.0 oC was obtained 2014 thesis https://ir.upsi.edu.my/detailsg.php?det=2392 https://ir.upsi.edu.my/detailsg.php?det=2392 text eng closedAccess Masters Universiti Pendidikan Sultan Idris Fakulti Sains dan Matematik N/A |
| institution |
Universiti Pendidikan Sultan Idris |
| collection |
UPSI Digital Repository |
| language |
eng |
| topic |
QD Chemistry |
| spellingShingle |
QD Chemistry Mohd Hizuan Hamzah Chitosan as an ionophore in a polyvinyl chloride based electrode for pH detection (IR) |
| description |
A heterogeneous membrane pH sensor based on chitosan, polyvinyl chloride (PVC) and a suitable plasticizer was developed. The best overall performance was shown by a membrane with composition ratio of chitosan (ionophore) : PVC (binder) : 2-nitrophenyl octyl ether (2-NPOE) (plasticizer) at 20 : 30 : 30 (w/w) respectively. The potentiometric responses were linear within pH 2 to 9, limit of detection at pH 9.5, slope 56.6 0.4 mV per decade at 25.0 1.0 oC and response time of 20.0 5.0 seconds. A life time of more than 3 months was obtained. The sensor showed good selectivity and reproducibility towards hydrogen ion in the presence of a number interfering cations. Results were in agreement with a commercial pH electrode for pH measurement in fruit juice samples. The sensor has been utilized in the flow injection analysis (FIA) of pH at standard solution. The slope of 57.1 0.2 mV per decade was linear at pH range of 2 to 7 at 25.0 1.0 oC was obtained |
| format |
thesis |
| qualification_name |
|
| qualification_level |
Master's degree |
| author |
Mohd Hizuan Hamzah |
| author_facet |
Mohd Hizuan Hamzah |
| author_sort |
Mohd Hizuan Hamzah |
| title |
Chitosan as an ionophore in a polyvinyl chloride based electrode for pH detection (IR) |
| title_short |
Chitosan as an ionophore in a polyvinyl chloride based electrode for pH detection (IR) |
| title_full |
Chitosan as an ionophore in a polyvinyl chloride based electrode for pH detection (IR) |
| title_fullStr |
Chitosan as an ionophore in a polyvinyl chloride based electrode for pH detection (IR) |
| title_full_unstemmed |
Chitosan as an ionophore in a polyvinyl chloride based electrode for pH detection (IR) |
| title_sort |
chitosan as an ionophore in a polyvinyl chloride based electrode for ph detection (ir) |
| granting_institution |
Universiti Pendidikan Sultan Idris |
| granting_department |
Fakulti Sains dan Matematik |
| publishDate |
2014 |
| url |
https://ir.upsi.edu.my/detailsg.php?det=2392 |
| _version_ |
1747833005850755072 |