c43fa1278841f517f1d2fef8e028f70c chemosensors_a2021v9n9p255.pdf 5edbedfc94869edb803996995ba8361bf1ed995c chemosensors_a2021v9n9p255.pdf f05b06569579f071bd97f76576b46948ad7b223b947a87a10d31227a875ee387 chemosensors_a2021v9n9p255.pdf Title: Dummy Molecularly Imprinted Polymers Using DNP as a Template Molecule for Explosive Sensing and Nitroaromatic Compound Discrimination Subject: This work reports a rapid, simple and low-cost voltammetric sensor based on a dummy molecularly imprinted polymer (MIP) that uses 2,4-dinitrophenol (DNP) as a template for the quantification of 2,4,6-trinitrotoluene (TNT) and DNP, and the identification of related substances. Once the polymer was synthesised by thermal precipitation polymerisation, it was integrated onto a graphite epoxy composite (GEC) electrode via sol–gel immobilisation. Scanning electron microscopy (SEM) was performed in order to characterise the polymer and the sensor surface. Responses towards DNP and TNT were evaluated, displaying a linear response range of 1.5 to 8.0 mol L-1 for DNP and 1.3 to 6.5 mol L-1 for TNT; the estimated limits of detection were 0.59 mol L-1 and 0.29 mol L-1, for DNP and TNT, respectively. Chemometric tools, in particular principal component analysis (PCA), demonstrated the possibilities of the MIP-modified electrodes in nitroaromatic and potential interfering species discrimination with multiple potential applications in the environmental field. Keywords: molecularly imprinted polymers; dummy template; voltammetric detection; 2,4,6-trinitrotoluene; nitroaromatic compounds Author: Anna Herrera-Chacon, Andreu Gonzalez-Calabuig and Manel del Valle Creator: LaTeX with hyperref Producer: pdfTeX-1.40.21 CreationDate: Sat Sep 18 08:01:08 2021 CEST ModDate: Sat Sep 18 08:07:03 2021 CEST Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 15 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 3637647 bytes Optimized: no PDF version: 1.7 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- OVNEXW+EURM10 Type 1 Builtin yes yes no 10 0 YTDIUF+URWPalladioL-Ital Type 1 Custom yes yes no 14 0 BZQTBO+URWPalladioL-Bold Type 1 Custom yes yes no 19 0 EQHQPD+URWPalladioL-Roma Type 1 Custom yes yes no 23 0 OJYQXC+CMSY10 Type 1 Builtin yes yes no 27 0 NKMZJA+VnURWPalladioL Type 1 Custom yes yes no 31 0 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yes yes yes 262 0 PKPHEM+PalatinoLinotype TrueType WinAnsi yes yes no 268 0 PKPHFO+PalatinoLinotype,Italic TrueType WinAnsi yes yes no 271 0 Jhove (Rel. 1.22.1, 2019-04-17) Date: 2022-03-10 03:05:04 CET RepresentationInformation: chemosensors_a2021v9n9p255.pdf ReportingModule: PDF-hul, Rel. 1.12.1 (2019-04-17) LastModified: 2022-02-04 11:54:50 CET Size: 3637647 Format: PDF Version: 1.7 Status: Well-Formed and valid SignatureMatches: PDF-hul MIMEtype: application/pdf PDFMetadata: Objects: 458 FreeObjects: 1 IncrementalUpdates: 0 DocumentCatalog: PageLayout: SinglePage PageMode: UseNone Outlines: Item: Title: Introduction Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@7b69c6ba Item: Title: Materials and Methods Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@46daef40 Children: Item: Title: Chemicals and Reagents Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@12f41634 Item: Title: Equipment and Software Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@13c27452 Item: Title: Polymer Synthesis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@262b2c86 Item: Title: Sensor Preparation Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@371a67ec Item: Title: MIP Modification of Electrodes by Sol Gel Entrapment Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@5ed828d Item: Title: Characterisation by Scanning Electron Microscopy Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@50d0686 Item: Title: Electrochemical Measurements Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@7a3d45bd Item: Title: Results and Discussion Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@1e7c7811 Children: Item: Title: MIP Physical Characterisation Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@77ec78b9 Item: Title: Electrochemical Response Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@1a3869f4 Item: Title: Calibration Curves Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@a38d7a3 Item: Title: Specificity versus Other Nitroaromatic Compounds Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@77f99a05 Item: Title: Conclusions Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@63440df3 Item: Title: References Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@3aeaafa6 Info: Title: Dummy Molecularly Imprinted Polymers Using DNP as a Template Molecule for Explosive Sensing and Nitroaromatic Compound Discrimination Author: Anna Herrera-Chacon, Andreu Gonzalez-Calabuig and Manel del Valle Subject: This work reports a rapid, simple and low-cost voltammetric sensor based on a dummy molecularly imprinted polymer (MIP) that uses 2,4-dinitrophenol (DNP) as a template for the quantification of 2,4,6-trinitrotoluene (TNT) and DNP, and the identification of related substances. Once the polymer was synthesised by thermal precipitation polymerisation, it was integrated onto a graphite epoxy composite (GEC) electrode via sol gel immobilisation. Scanning electron microscopy (SEM) was performed in order to characterise the polymer and the sensor surface. Responses towards DNP and TNT were evaluated, displaying a linear response range of 1.5 to 8.0 mol L-1 for DNP and 1.3 to 6.5 mol L-1 for TNT; the estimated limits of detection were 0.59 mol L-1 and 0.29 mol L-1, for DNP and TNT, respectively. Chemometric tools, in particular principal component analysis (PCA), demonstrated the possibilities of the MIP-modified electrodes in nitroaromatic and potential interfering species discrimination with multiple potential applications in the environmental field. Keywords: molecularly imprinted polymers; dummy template; voltammetric detection; 2,4,6-trinitrotoluene; nitroaromatic compounds Creator: LaTeX with hyperref Producer: pdfTeX-1.40.21 CreationDate: Sat Sep 18 08:01:08 CEST 2021 ModDate: Sat Sep 18 08:07:03 CEST 2021 ID: 0x3a1583698e3e7f705d5371eca77c0e39, 0x3a1583698e3e7f705d5371eca77c0e39 Filters: FilterPipeline: FlateDecode Fonts: Type1: Font: BaseFont: BZQTBO+URWPalladioL-Bold FontSubset: true FirstChar: 3 LastChar: 122 FontDescriptor: FontName: BZQTBO+URWPalladioL-Bold Flags: Symbolic FontBBox: -152, -301, 1000, 935 FontFile: true EncodingDictionary: Differences: true Font: BaseFont: EQHQPD+URWPalladioL-Roma FontSubset: true FirstChar: 2 LastChar: 241 FontDescriptor: FontName: EQHQPD+URWPalladioL-Roma Flags: Symbolic FontBBox: -166, -283, 1021, 943 FontFile: true EncodingDictionary: Differences: true Font: BaseFont: OVNEXW+EURM10 FontSubset: true FirstChar: 22 LastChar: 22 FontDescriptor: FontName: OVNEXW+EURM10 Flags: Symbolic 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