Chromatography Reagents

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Reagents, C Chromatography Reagents

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  • MSTFA and MSTFA 1% TMCS

    Thermo Scientific

    Offers maximum volatility Trimethylsilyl donor strength comparable to BSA and BSTFA Reacts to replace labile hydrogens on a wide range of polar compounds with a Si(CH3)3 group Used to prepare volatile and thermally stable derivatives for GC and MS Volatile byproduct,…

  • Isocyanates Singles

    Restek

    ASTM D5836 and OSHA 42 are test methods for determining 2,4-toluene diisocyanate (2,4-TDI) and 2,6-TDI in the workplace atmosphere. OSHA 47 is for 4,4'-methylenediphenyl isocyanate (4,4'-MDI) in indoor air, and NIOSH Method 5522 is for 2,4-TDI; 2,6-TDI; 4,4'-MDI; and 1,6-hexamethylene…

  • Silylation Grade Solvents

    Thermo Scientific

    Silylation Grade Solvents are manufactured to meet exacting silylation needs. Purified, dried and packaged under nitrogen in convenient 50mL Hypo-Vial Sample Storage Vials Supplied with elastomer septa, allowing immediate access to the sample without exposure to moisture and oxygen Use polar…

  • Polystyrene Beads

    bioWORLD

  • Single-Component Explosives Solutions

    Restek

    These materials support nitroaromatic, nitramine, and nitroester analyses by GC-ECD (Method 8095). 1 , 2 Compounds listed are explosives, manufacturing intermediates, or degradation products. Method 8095 mixtures contain the components at concentration ratios appropriate for ECD. Supports…

  • DHA PONA Standard (188 components)

    Restek

    Compound List Compound, Conc (wt/wt%) Paraffins N-Butane, 2.086% N-Decane, 0.966% N-Dodecane, 0.943% N-Heptane, 2.479% N-Hexane, 3.882% N-Nonane, 1.048% N-Octane, 1.403% N-Pentadecane, 0.947% N-Pentane, 4.093% Propane, 0.251% N-Tetradecane, 0.947% N-Tridecane, 0.941% N-Undecane, 0.941% Isoparaffins…

  • Acrolein

    Restek

    Compound List Acrolein (107-02-8) This product has a limited shelf life. We recommend that you order only the ampul quantity that meets your immediate needs. NOTE: Store standards under frozen conditions (0°C or colder). We recommend you store ampuls lying flat (horizontally) to…

  • MTBSTFA and MTBSTFA+1% TBDMCS

    Thermo Scientific

    MTBSTFA and MTBSTFA+1% TBDMCS offer stable TBDMS (tert-butyldimethylsilyl) derivatization. Derivatizes hydroxyl, carboxyl, thiol and primary and secondary amines Typical yields are >96% Provides TBDMS ethers that are 104 times more stable to hydrolysis than TMS ethers Reaction byproducts…

  • DHA PiONA Standard (133 components)

    Restek

    Compound List Compound, Conc (wt/wt%) Paraffins N-Decane, 1.736% N-Dodecane, 1.727% N-Heptane, 1.723% N-Hexane, 1.729% N-Nonane, 1.727% N-Octane, 1.721% N-Pentadecane, 1.734% N-Pentane, 1.728% N-Tetradecane, 1.735% N-Tridecane, 1.723% N-Undecane, 1.723% Isoparaffins 3,3-Diethylpentane, 0.364%…

  • Tetrahydrofuran-d8

    Restek

    CAS #: 1693-74-9

  • Tri-Sil TP Reagent (TMSI:Pyridine)

    Thermo Scientific

    Tri-Sil TP Reagent derivatizes hydroxyl compounds, particularly carbohydrates. Silylates alcohols and phenols, organic acids, hydroxylamines, amino acids, carbohydrates, flavonoids, glycols and polyglycols, nucleotides, steroids, hydroxyl acids, barbituates, narcotics, indoles and vitamins Does…

  • TMSI (N-Trimethylsilylimidazole)

    Thermo Scientific

    TMSI (N-Trimethylsilylimidazole) is the strongest silylator available for carbohydrates and steroids. Reacts quickly and smoothly with hydroxyls and carboxylic acids but not with amines Especially useful in multiderivatization schemes for compounds containing both hydroxyl and amine groups …

  • GFSELECT™ Silica, 60A, 60-200 Micron

    GFS Chemicals

    Irregular, chromatographic grade. 60 angstrom pore size, 70-230 mesh (60-200 micron), particle size.

  • EPA 524.3 Reference Standards

    Restek

    Full 82-component EPA 524.3 list using as few as three ampuls—reduce prep time and chances for error or contamination. EPA 524.3 VOA MegaMix ampul includes oxygenates group—no need to order separately. Volatile gases prepared separately—replace shorter-life components…

  • QuEChERS Internal Standard Mix for GC-MS Analysis (6 components)

    Restek

    Compound List PCB 18 (37680-65-2), 50 µg/mL PCB 28 (7012-37-5), 50 µg/mL PCB 52 (35693-99-3), 50 µg/mL Triphenylmethane (519-73-3), 10 µg/mL Triphenylphosphate (115-86-6), 20 µg/mL Tris-(1,3-dichloroisopropyl)phosphate (13674-87-8), 50 µg/mL

  • Method 535 Individual Compounds

    Restek

  • Bis(Trimethylsilyl)Trifluoroacetamide For Gas Chromatography

    MilliporeSigma

    CAS No.: 25561-30-2 Solubility: (20°C) Hydrolysis Molar Mass: 257.40 g/mol Boiling Point: 145°C (1013 hPa) Flash Point: 34°C Density: 0.97 g/cm3 (20°C) Hill Formula: C8H18F3NOSi2

  • Triton® X-100 For Gas Chromatography

    MilliporeSigma

    Formula: C8H17C6H4(OCH2CH2)nOH CAS No.: 9036-19-5 pH: 5.0 - 8.0 (10 g/l, H2O, 20°C) Solubility: (20°C) soluble Melting Point: -4°C Boiling Point: >200°C (1013 hPa) Vapor Pressure: Flash Point: 251°C Density: 1.07 g/cm3 (20°C) Hill Formula: C14H21(C2H4O)nOH

  • 1,1,1,3,3,3-Hexamethyldisilazane For Gas Chromatography

    MilliporeSigma

    CAS No.: 999-97-3 Solubility: (20°C) decomposes Melting Point: -82°C Molar Mass: 161.39 g/mol Boiling Point: 126°C (1013 mbar) Vapor Pressure: 20 hPa (20°C) Flash Point: 6°C Explosion Limit: 0.8 - 25.9 %(V) Density: 0.774 g/cm3 (20°C) Ignition Point: 325°C Viscosity…

  • N,O-Bis(Trimethylsilyl)Acetamide For Gas Chromatography

    MilliporeSigma

    Formula: CH3C[NSi(CH3)3]OSi(CH3)3 CAS No.: 10416-59-8 Solubility: (20°C) decomposes Molar Mass: 203.43 g/mol Boiling Point: 43°C (11 hPa) Vapor Pressure: 10 hPa (50°C) Flash Point: 40°C Density: 0.83 g/cm3 (20°C) Hill Formula: C8H21NOSi2

  • (s)-(-)-1,2,4-Butanetriol

    Restek

    Compound List (s)-(-)-1,2,4-Butanetriol (42890-76-6)

  • N,N-Dimethylacetamide For Headspace Gas Chromatography Suprasolv®

    MilliporeSigma

    CAS No.: 127-19-5

  • Molecular Sieve, 13X 8-12 Mesh Beads

    GFS Chemicals

    CAS#: 1344-00-9

  • PCB-Free Transformer Oil

    Restek

    ASTM Method D4059-00 is used for determining PCB concentrations in various types of transformer oil using GC-ECD detection. The analyst must dilute transformer oil samples in a solvent prior to injection. The oil in the sample has been shown to quench the ECD. Calibration mixtures of PCBs in…

  • System Performance Test Standard Mixture of n-Alkanes (16 components)

    Restek

    Compound List (C10) n-Decane (124-18-5) (C12) n-Dodecane (112-40-3) (C14) n-Tetradecane (629-59-4) (C16) n-Hexadecane (544-76-3) (C18) n-Octadecane (593-45-3) (C20) n-Eicosane (112-95-8) (C22) n-Docosane (629-97-0) (C24) n-Tetracosane (646-31-1) (C26) n-Hexacosane (630-01-3) (C28) n-Octacosane…

  • BSA

    Thermo Scientific

    The perfect reagent for volatile TMS derivatives. Highly reactive trimethylsilyl donor that reacts quantitatively to form volatile, stable TMS derivatives Reacts quickly and quantitatively under mild conditions with a variety of compounds Derivatizes alcohols, amines, amides, carboxylic…

  • Free Fatty Acids Test Standard (6 components)

    Restek

    Compound List (C4:0) Butyric acid (107-92-6) Acetic acid (64-19-7) Isobutyric acid (79-31-2) Isovaleric acid (503-74-2) Propionic acid (79-09-4) Valeric acid (109-52-4)

  • Silylation Derivatization Reagents

    Restek

    Replace active hydrogen, reducing polarity and making the compounds more volatile. Increase stability of derivatives.

  • Nucleosil® 500-5

    GFS Chemicals

    Unmodified, spherical silica. 500 angstrom pore size, 5 micron particle size.

  • LC Multiresidue Pesticide Kit

    Restek

    Accurately detect and quantify pesticides of global food safety concern in a wide range of fruits, vegetables, and other commodities by LC-MS/MS. Full kit contains 204 compounds of interest, covering many LC-determined pesticides listed by government agencies; individual ampuls also sold…

  • Labeled Pesticide Residue Internal Standards for Food Analysis

    Restek

    Isotopically labeled to provide the best approach for pesticide residue quantification. Multiple options let you choose internal and surrogate standards that will mitigate matrix effects. Economically priced and compatible with both LC-MS and GC-MS applications; even helpful for optimizing…

  • Diazem Peptica C18-A, 200 A, 10 Micron, Modified Silica

    GFS Chemicals

    Polymeric, high pH stability, hydrophobic end-capping, high peptide retentivity.

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