Journal of Chromatography A, Год журнала: 2024, Номер 1735, С. 465313 - 465313
Опубликована: Авг. 31, 2024
Язык: Английский
Analytica Chimica Acta, Год журнала: 2025, Номер 1342, С. 343673 - 343673
Опубликована: Янв. 18, 2025
Язык: Английский
Процитировано
2
ACS Applied Electronic Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 22, 2025
Язык: Английский
Процитировано
1
ACS Omega, Год журнала: 2025, Номер 10(9), С. 9514 - 9526
Опубликована: Фев. 26, 2025
This work presents the synthesis of mono- and dicationic ionic liquids (ILs) that combine cations 1-butyl-3-methylimidazolium ([C4MIM]+), 1-decyl-3-methylimidazolium ([C10MIM]+), 1,4-bis(3-methylimidazolium-1-yl)butane ([C4(MIM)2]2+), 1,10-bis(3-methylimidazolium-1-yl)decane ([C10(MIM)2]2+) with anion dodecanoate ([C11COO]−), along a study into their thermal stability mechanism for decomposition. Thermal was investigated using Kissinger–Akahira–Sunose (KAS) isoconversional method to determine activation energies (Eα) compensation effect calculate pre-exponential factor (ln Aα). The results showed there no significant difference in stabilities between ILs, all compounds being thermally stable up 450 K. decomposition analyzed nuclear magnetic resonance (NMR), electrospray ionization mass spectrometry (ESI-MS), thermogravimetric analysis coupled Fourier-transform infrared spectroscopy (TGA-FTIR). main pathways were nucleophilic substitution at lateral or spacer chain methyl group.
Язык: Английский
Процитировано
1
Analytical Chemistry, Год журнала: 2025, Номер unknown
Опубликована: Фев. 28, 2025
InfoMetricsFiguresRef. Analytical ChemistryASAPArticle This publication is Open Access under the license indicated. Learn More CiteCitationCitation and abstractCitation referencesMore citation options ShareShare onFacebookX (Twitter)WeChatLinkedInRedditEmailJump toExpandCollapse ReviewFebruary 28, 2025Ionic Liquids in Chemistry: Fundamentals, Technological Advances, Future OutlookClick to copy article linkArticle link copied!Victoria R. ZegerVictoria ZegerDepartment of Chemistry, Iowa State University, Ames, 50011, United StatesMore by Victoria ZegerView BiographyBhawana ThapaBhawana ThapaDepartment Bhawana ThapaView BiographyDanial ShamsaeiDanial ShamsaeiDepartment Danial ShamsaeiView BiographyJessica F. DeLairJessica DeLairDepartment Jessica DeLairView BiographyTristen L. TaylorTristen TaylorDepartment Tristen TaylorView BiographyJared Anderson*Jared AndersonDepartment Chemistry Ames National Laboratory─USDOE, States*[email protected]More Jared AndersonView Biographyhttps://orcid.org/0000-0001-6915-8752Open PDFAnalytical ChemistryCite this: Anal. Chem. 2025, XXXX, XXX, XXX-XXXClick citationCitation copied!https://pubs.acs.org/doi/10.1021/acs.analchem.5c00264https://doi.org/10.1021/acs.analchem.5c00264Published February 2025 Publication History Received 13 January 2025Accepted 12 2025Revised 4 2025Published online 28 2025review-article© The Authors. Published American Chemical Society. licensed CC-BY-NC-ND 4.0 . License Summary*You are free share (copy redistribute) this any medium or format within parameters below:Creative Commons (CC): a Creative license.Attribution (BY): Credit must be given creator.Non-Commercial (NC): Only non-commercial uses work permitted. No Derivatives (ND): Derivative works may created for purposes, but sharing prohibited. View full license*DisclaimerThis summary highlights only some key features terms actual license. It not has no legal value. Carefully review before using these materials. underCC-BY-NC-ND share(copy below: Attribution *DisclaimerThis creator. Non-Commercial ACS Publications© SocietySubjectswhat subjectsArticle subjects automatically applied from Subject Taxonomy describe scientific concepts themes article.ChromatographyExtractionSaltsSolventsSorbentsSpecial IssuePublished as part special issue "Fundamental Applied Reviews 2025".IntroductionClick section linkSection copied!The development new analytical methods most often focus on novel materials used impart selectivity sensitivity protocol. Ionic liquids (ILs) class solvents that have been extensively explored promising various applications continue due their tunable physicochemical properties. These possess melting temperatures below 100 °C can interact with analytes through multitude interactions afforded readily chemical structure. (1) include electrostatic, dispersive, hydrogen bonding, π–π, dipolar modulated strengthened based functional groups present (2) ILs consist predominately organic cations either inorganic anions, both which functionalized desired moieties. Common cation anions found IL structures presented Figure 1. unique polarity ionic structure also led increasing use areas including sample preparation, separations, electrochemistry, mass spectrometry, spectroscopy. (3−7)Figure 1Figure commonly R consisting mainly alkyl chains benzyl moiety. depicted here discussed text figure.High Resolution ImageDownload MS PowerPoint SlideILs referred "designer solvents" because properties tuned interchanging different anions. Specific require exhibit certain temperature, viscosity, volatility, conductivity, and/or solubility meet constraints method, requirements cannot achieved traditional solvents. To overcome limitation solvents, many studies sought understand influence plays dictating behavior. (8−11) In review, specific when related success application, readers encouraged explore chapter Zhou et al. Further UnCOILed: Critical Expert Overviews further information regarding relationships between (12)By incorporating into structure, subclasses emerged polymeric (PILs), (13,14) magnetic (MILs), (15) zwitterionic (ZILs), (16) dicationic (DILs), (17) chiral (CILs), (18) fluorescent (FILs). (19,20) Polymerizable monomers designed reactive subsequently undergo polymerization form PILs. PILs geometries thin films, (21) cylindrical columns, (22) spheres. (23) They offer improved thermal stability over employed variety ranging sorbents preparation signal enhancers spectrometry (MS) spectroscopy methods. (24,25) ZILs chemically bonded IL-like properties, such low lower points, moderate high stability. (26) Most notably, higher viscosity increased extraction well gas liquid chromatographic stationary phases. (27−29) DILs, two tethered cations, studied extractions become popular choice charge inverters improve detection negatively charged positive ionization mode. (17,30,31) CILs distinct center. stereochemistry CIL allows stronger targeted enantiomer, resulting enantiomeric separations. separations cyclodextrins enhance enantioseparations. (32) Lastly, FILs uniquely analytes. (20) FIL-based smartphone detectors colorimetric assays involving point-of-care on-site detection. (33,34)The current provides an update application chemistry since our last published 2019. (35) While meant comprehensive, emphasis demonstrating innovative each subdisciplines field chemistry. organized three main topics, membrane electrokinetic separations; electrochemical sensing; (3) other Table 1 defines common terminology throughout disciplines; abbreviations terminologies will defined text. keep consistent uniform abbreviation style differ slightly reported original articles.Table Abbreviations Used Throughout Review Article Refer Materials, Techniques, Methods Described TextSample PreparationLLELiquid–Liquid ExtractionMEMicroextractionLPMELiquid Phase MicroextractionDLLMEDispersive Liquid–Liquid MicroextractionSDMESingle Drop MicroextractionHSHeadspaceDIDirect ImmersionSPMESolid MicroextractionTFMEThin Film MicroextractionMEPSMicroextraction Packed SorbentSPESolid MicroextractionCPMECapsule MicroextractionABSAqueous Biphasic SystemChromatographyGCGas ChromatographyμGCMicro Gas ChromatographyLCLiquid ChromatographyHPLCHigh-Performance Liquid ChromatographyUHPLCUltrahigh Performance ChromatographyIECIon Exchange ChromatographyRP-LCReverse ChromatographyHILICHydrophilic Interaction ChromatographyMembrane SeparationsLMLiquid MembranesELMEmulsion MembranesBLMBulk MembranesSLIMSupported MembranesILPMSIL Composite Polymer MembraneMMMMixed Matrix MembraneILMMMIL Mixed MembranePILMPIL MembranesILGMIL Gel MembranesILMCIL Membrane ContactorsElectroseparationsCECapillary ElectrophoresisEKCCapillary Electrokinetic ChromatographyMEKCMicellar ChromatographyHI-EKCHydrophilic Capillary ChromatographyEI-FFFElectric Field-Flow FractionationDetection MethodsMSMass SpectrometryESIElectrospray IonizationMALDIMatrix Assisted Laser Desorption/IonizationMSIMass Spectrometry ImagingSERSSurface-Enhanced Raman SpectroscopyIL CharacterizationDFTDensity Field TheoryNMRNuclear Magnetic Resonance (Spectroscopy)TGAThermogravimetric AnalysisIRInfrared SpectroscopyAnalytical TerminologyLOQLimit QuantificationLODLimit DetectionCommonly Mentioned Materials CompoundsPDMSPolydimethylsiloxanePVAPoly(vinyl alcohol)PEGPolyethylene GlycolPETPolyethylene TerephthalateNPNanoparticlesSDSSodium Dodecyl SulfatePAHPolyaromatic HydrocarbonDNADeoxyribonucleic AcidSubclasses ILsCILChiral LiquidDILDicationic LiquidFILFluorescent LiquidMILMagnetic LiquidPILPolymeric LiquidZILZwitterionic LiquidSample PreparationClick copied!Sample crucial step analysis it separates target interfering substances concentrates them especially critical biological environmental samples direct introduction complex matrices instrumentation undesirable inherent disadvantages, analyte concentrations too instrumentation. (36,37) long matrices. liquid–liquid (LLE) selective environmentally friendly alternative conventional (38,39) However, costs compared seen limitations larger volumes. challenges mitigated employing microextraction (ME) procedures, allowing exploitation solvation power. (40) Microextractions employ very small volumes solvent relative volume preconcentration method prior analysis. (41) gained widespread popularity solvent-based sorption-based ME techniques, owing distinctive characteristics overall versatility. (LPMEs)Dispersive (DLLME) single drop (SDME) techniques applying studies. (42,43) DLLME was first introduced Rezaee 2006 where they developed simple rapid extracting compounds aqueous samples. (44) ternary system, water-immiscible (commonly denser than water) mixed water-miscible disperser solvent. mixture quickly injected sample, causing disperse fine droplets cloudy solution formed. contact area accelerated equilibrium Advantages simplicity operation, speed, cost, recovery enrichment factors. frequently criticized harmful chlorinated extraction.ILs toxicity (compared solvents), structural tunability, density water. Liu report detecting four heterocyclic insecticides water (45) Numerous modified IL-based methods, leading exciting improvements applications. Various approaches eliminate ultrasound-assisted, vortex-assisted, microwave-assisted, air-assisted techniques; however, external energy dispersion (46) Piao time acidic task-specific effervescence-assisted determine triazine herbicides tea beverages (47) known potential adverse effects, hormone disruption, birth defects, reproductive cancers. (48) adsorbents dispersed carbon dioxide bubbles produced straightforward reaction carbonate acid solution. utilized 1-butyl-3-methylimidazolium sulfate ([C4MIm+][HSO4–]) IL, cationic group acted extractant while anionic served substitute acids. enhanced transfer without requiring source. Following dispersion, ion-exchange reagent ammonium hexafluorophosphate introduced, replacement hydrophilic hydrophobic [C4MIm+][PF6–] easy solution.Effervescence-assisted requires centrifugation collect solvent, regarded time-consuming IL-DLLME. Thus, recent focused utilizing MIL-based DLLME, MILs easily separated permanent magnet. subclass incorporate paramagnetic atoms (i.e., transition metals lanthanide metals) retain defining possessing make responsive fields. (49) Fiorentini trihexyl(tetradecyl)phosphonium tetrachloroferrate (III) ([P6,6,6,14+][FeCl4–]) MIL capture determination trace levels arsenic (As(III)) honey. (50) As(III) preconcentrated chelating diethyldithiophosphate conditions then extracted acetonitrile dispersive separation analyte-containing phase eliminated need centrifugation. Trujillo-Rodríguez approach situ achieve factors removing step. (51) Commonly methodologies contain tetrachloroferrate(III) ([FeCl4–]), bromotrichloroferrate(III) ([FeBrCl3–]), tetrachloromanganate(II) ([MnCl42–]), tris(hexafluoroacetylaceto)nickelate(II) ([Ni(hfacac)3–]), tris(hexafluoroacetylaceto)dysprosate(III) ([Dy(hfacac)4–]). render unsuitable reasons, apparent component exchanged during metathesis reaction, hindering subsequent separation. newly featuring nickel(II) centers coordinated N-alkylimidazole ligands chloride bis[(trifluoromethyl)sulfonyl]imide ([NTf2–]) anion. research study Bowers concept short double-stranded DNA. (52) A Qiao multimagnetic center (MMIL) anion extractants parabens beverages. paraben enrichment, incorporated back-extraction decomposition MMIL. (53)Another LPME technique traction its advantages microdroplet (SDME). Although SDME topic less prevalent years DLLME. (typically few microliters) serves suspended syringe needle. immersed stirred exposed headspace duration, after retracted analyzed. (54) significant reduction size, minimal all offering enrichment. investigated vapor pressure minimize evaporation droplet (55) Li ([C4MIm+][NTf2–] methanesulfonates SDME. Methanesulfonates genotoxic agents formed residual methanesulfonic synthesis manufacturing drug substances. (56) sensitive methanesulfonates, methylmethanesulfonate, ethylmethanesulfonate isopropyl methanesulfonate, complexities matrix. Previously proposed solutions were ineffective mitigating matrix effects; [C4MIm+][NTf2–] mode derivatizing effect resulted good recoveries. Sorbent MicroextractionsPILs monomers, cross-linker. prominence solid-phsae (SPME), (27,57) film (TFME), (58,59) packed sorbent (MEPS). (60,61) Among SPME widely ability detect broad range food, environmental, biological, pharmaceutical (62−64) SPME, coated immobilized solid support, enhances process. partitioning matrix, direct-immersion offers integrates collection, extraction, (65) automate fully compatible systems. Despite benefits, limited number commercially available coatings, driven designing sorbents. (27) alternatives cross-linkers superior neat ILs. (66) enhancing efficiency across Yavir al., PIL coatings synthesized nickel metal extract volatile semivolatile amines HS-SPME. (67) nickel-based PIL, composed (tetra(3-vinylimidazolium)nickel ([Ni(VIM)4][NTf2]2) monomer, having toward observed nickel-containing Amines toxic hazardous humans animals react nitrosylating carcinogenic N-nitroamines, emphasizing significance study. (68)Although fiber-type geometry, several formats, in-tube developed. In-tube facilitate direct, coupling performance chromatography (HPLC) system employs capillary column segment device, diluted concentrated repeated draw/eject cycles flowing microflow pump
Язык: Английский
Процитировано
0
Journal of Analysis and Testing, Год журнала: 2025, Номер unknown
Опубликована: Март 17, 2025
Язык: Английский
Процитировано
0
Journal of Chromatography A, Год журнала: 2024, Номер 1735, С. 465313 - 465313
Опубликована: Авг. 31, 2024
Язык: Английский
Процитировано
1