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The performance of molecularly imprinted polymers (MIPs)-modified carbon paste electrode and its application in detecting phenol
Setiyanto H.a, Rahmadhani S.a, Sukandar S.a, Saraswaty V.b, Zulfikar M.A.a, Mufti N.c
a Analytical Chemistry Research Group, Institut Teknologi Bandung, Bandung, Indonesia
b Research Unit for Clean Technology, Indonesian Institute of Sciences, Bandung, Indonesia
c Department of Physics, Universitas Negeri Malang, Malang, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2020 The Authors.Phenol is a very important chemical compound in life, especially in industry. Various methods of phenol analysis have been developed due to the harmful effect of phenol wastes that pollute the waters. A method employed to analyze phenol with simple instrumentation having good selectivity and sensitivity was a potentiometric method, which used a carbon paste electrode as the working electrode and was modified with a molecularly imprinted polymers (MIPs). The carbon paste electrode was electrochemically modified using a 15-cycle cyclic voltammetry technique at a potential range of-0.2 V-1.0 V and scan rate of 100 mV/s with composition of the solution being 0.1 mM phenol: 0.2 mM aniline in a buffer solution having pH value of 9 and 0.1 M KCl as supporting electrolyte. Phenol was extracted from the polymer matrix electrochemically using 0.1 M HCl, thus expecting to form templates that can specifically recognize the molecule. The results showed that the phenolic content analysis, via a potentiometric method using MIPs-modified carbon paste electrode, had a linear range of 10-7 M-10-1 M with a detection limit of 2.5 x 10-7 M. Besides, this electrode can respond to analytes within 60-70 s. The accuracy was determined based on the relative error value (% Er). The % Er obtained ranged from 1% to 3%, indicating that this method is quite accurate for the determination of phenol. The precision was identified with a good coefficient of variation, which was less than 2%. The effect of interference compounds was observed in the small selectivity coefficient (KA, Bpot texp 1.12, it can be concluded that measurement with a potentiometric method using MIPs-modified carbon paste working electrode has no significant difference compared to the UV-Vis spectrophotometric method.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Electrochemistry,Molecularly imprinted polymers (MIPs),Phenol,Polyaniline,Potentiometry[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.20964/2020.06.66[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]