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Development of simultant quantification of non-ionic surfactant in chemical flooding using mobile 1H NMR
Putra I.A.a,b, Alli Y.F.a, Mujahidin D.b
a Research and Development Center for Oil and Gas Technology (LEMIGAS), Cipulir, Kebayoran Lama, Jakarta Selatan, 12230, Indonesia
b Organic Synthesis Laboratory of Chemistry, Institut Teknologi Bandung, Bandung, Lebak Siliwangi, Coblong, 40132, 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]© Published under licence by IOP Publishing Ltd.The injection of surfactant is potential to be lost during the process due to the adsorption of surfactant into the core. It is therefore crucial to analyzed the concentration of surfactant before and after injection to the core. Many methods are developed for determining the content of surfactant using UV-Vis Spectrophotometer by utilizing the chromophore group of the chemical. In this study, quantification of nonionic surfactant that absent of chromophore group was performed using a combination of mobile Nuclear Magnetic Resonance (NMR) with Solid Phase Extraction (SPE). SPE was used to extract the samples that dissolved in water, whereas NMR was used to identify the levels of nonionic surfactants that dissolved in deuterized solvents. Internal standard chemical was added to the sample to verify the concentration of samples. As a stationary phase was SPE C-18 and eluent was methanol, ethyl acetate, and n-hexane. Furthermore, the SPE results were measured using mobile 1H NMR 43 MHz with selected solvents namely deuterated chloroform (CDCl3) and internal standard Dimethyl Formamide (DMF). Optimization results for determination of surfactant concentration up to 0.5% w/w was using the C-18 stationary phase, mobile phase methanol, ethyl acetate, and n-hexane.[/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]Chemical flooding,Chromophore group,Deuterated chloroforms,Internal standards,Nuclear magnetic resonance(NMR),Solid-phase extraction,Surfactant concentrations,UV-Vis spectrophotometers[/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][/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][{‘$’: ‘This paper is the collaboration results of Research Centre for Oil and Gas Technology “LEMIGAS” and Organic Synthesis Laboratory of Chemistry, Bandung Institute of Technology. Special thanks to Dr. Untung Triadi, M.Si for sharing about SPE teqhniques. The financial support from DIPA Research Center for Oil and Gas Technology “LEMIGAS” is fully acknowledged.’}, {‘$’: ‘This paper is the collaboration results of Research Centre for Oil and Gas Technology “LEMIGAS” and Organic Synthesis Laboratory of Chemistry, Bandung Institute of Technology. Special thanks to Dr. Untung Triadi, M.Si for sharing about SPE teqhniques. The financial support from DIPA Research Center for Oil and Gas Technology “LEMIGAS” is fully acknowledged.’}][/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/10.1088/1757-899X/673/1/012011[/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]