Development of Ammonium-Selective Electrode Based on PVC/MB28 Membrane

International Conference on Design, Engineering and Computer Sciences 2018

工业技术;计算机科学

Alva, Sagir^1 ; Sundari, R.^1 ; A Aziz, A.S.^2 ; A Rashid, N.A.^2 ; Gunawan, W.^3

Mechanical Engineering, Mercubuana University, South Meruya No. 1, Kembangan West Jakarta

11650, Indonesia^1

Photonics Rand D NST Department, MIMOS Berhad, Technology Park Malaysia, Kuala Lumpur

57000, Malaysia^2

Electrical and Electronic Engineering Department, Faculty of Engineering, University Technology Petronas, Seri Iskandar, Perak Darul Ridzwan

32610, Malaysia^3

关键词: Ammonium ions;    Butyl acrylates;    Dioctyl sebacate;    Hybrid membrane;    ISE-NH4^+;    MB28;    Plasticized materials;    Selective electrodes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/453/1/012042/pdf
DOI  :  10.1088/1757-899X/453/1/012042

来源: IOP

【 摘 要 】

In this study, the ISE-NH4 + sensor based on hybrid membrane of the poly (vinyl chloride)/methyl methacrylate-butyl acrylate 2:8 co-polymer (PVC/MB28) has been successfully developed, where the ratio between PVC: MB28 is 9:1. Meanwhile, the plasticized material used is dioctyl sebacate (DOS) of 66.34 wt. %, the amount of lipophilic salt of the potassium tetrakis (4-chlorophenyl) borate (KTpClPB) used is 0.99 wt. %, and nonactine as much as 2.97 wt.%. The addition of the MB28 co-polymer has successfully improved the performance and mechanical strength of ISE-NH4+ especially at measurements at 40°C. The ISE-NH4 + sensor based on PVC/MB28 has a Nernstian number of 55.4 and 58.7 mV/dec for measurement at 25°C and 40°C with the linear range between 0.1 - 10-5 M. While the ISE-NH4+ sensors based on PVC used as benchmarking have Nernstian numbers of 54.2 and 35.3 mV/dec for measurements at 25 ° C and 40 ° C, where the linear range is 0.1 - 10-5 M and 0.1 - 10-3 M. The addition of MB28 also does not cause the selectivity of the ISE-NH4 + sensor to decrease, where the result of the selectivity between PVC/MB28 is comparable to PVC.