29 products found

Products

  • HPLC / UHPLC Columns

  • Endeavorsil - Model 1.8 μm - UHPLC Columns

    Endeavorsil - Model 1.8 μm - UHPLC Columns

    Combined speed, resolution and sensitivity. Reduced analysis time and solvent waste. High efficiency combined with high selectivity generates more information and productivity. Superior column performance at higher pressure. Excellent separation characteristics over wide pH range.

  • Inspire - Model HILIC (New) - Normal Phase Chromatography of Polar and Ionic Compounds

    Inspire - Model HILIC (New) - Normal Phase Chromatography of Polar and Ionic Compounds

    HILIC is normal phase chromatography of polar and ionic compounds under RP conditions. It combines the characteristics of three methods in LC – RP, NP, and IC. Inspire HILIC columns retain a water-enriched layer on the surface of the silica. This water layer facilitates the transfer of polar compounds onto the stationary phase for increased retention. Separation is achieved through the partitioning of polar solutes from the high concentration,...

  • Spursil - Polar-Modified Columns

    Spursil - Polar-Modified Columns

    Spursil polar-modified phases are based on ultra high-purity silica and novel polar modification technology. The unique bonded phases maximize polar retention and selectivity, while virtually eliminating silanol activity. The resulting polar-modified packing material contains a surface which is easily 'wetted' with polar eluents and can run in highly aqueous conditions. The polar group also seems to play a role in base deactivation. We have seen some...

  • Bio-Bond - Protein and Peptide Separation Columns

    Bio-Bond - Protein and Peptide Separation Columns

    Bio-Bond columns with 300 Å pore silica gel are suitable for analysis of proteins, peptides and biological samples. Meticulous care is given to the quality control of surface smoothness, particle shape, pore structure and pore consistency to ensure uniformity of particle structure and enhanced mechanical strength. A low fine percentage from damaged silica particles strengthens the column bed, leading to low backpressure and enhanced column...

  • EasyGuard - Guard Columns

    EasyGuard - Guard Columns

    Features of EasyGuard Columns: Universal design to match any brand column. A variety of optional bonded phase material. Does not affect the analytical column resolution. Long lifetime column cartridges, high performance and low price.

  • Inspire - Semi-Preparative and Preparative Columns

    Inspire - Semi-Preparative and Preparative Columns

    Inspire material meets the most stringent requirements from analytical to preparative scale in the pharmaceutical industry. High surface area and carbon load are the keys to success. These features meet preparative chromatography resolution, and loadability requirements in the pharmaceutical production.

  • GC Columns

  • Dikma - Model GC - Guard Columns

    Dikma - Model GC - Guard Columns

    Guard Column / Transfer Lines (Intermediate Polarity Deactivated): Use in a wide variety of applications. Allow most common solvents.

  • DikmaCap - Model DM-1 / DM-1MS - Capillary Columns

    DikmaCap - Model DM-1 / DM-1MS - Capillary Columns

    100% Dimethyl polysiloxane. General purpose column of non-polar phase. Long lifetime. Temperature range: -60 ºC to 350 ºC. Bonded and cross-linked phase, solvent rinsable. DM-1MS is a low bleed column, use for MSDs. Similar to DB-1, SPB-1, HP-1, etc. Equivalent to USP G1, G2, G38 phases.

  • DikmaCap - Model DM-5 / DM-5MS - Capillary Columns

    DikmaCap - Model DM-5 / DM-5MS - Capillary Columns

    5% diphenyl / 95% dimethyl polysiloxane, general purpose column with low polarity phase. DM-5 column has a slightly higher polarity compared to DM-1, resulting in a better selectivity for aromatic compounds. DM-5 column exhibits excellent reproducibility, high column efficiency, and low bleed. DM-5MS column exhibits ultra-low bleed with excellent inertness for active compounds and improves detection performance for MSDs, ECDs and NPDs.

  • DikmaCap - Model DM-5MS / LB - Capillary Columns

    DikmaCap - Model DM-5MS / LB - Capillary Columns

    DM-5MS / LB (low bleed) column is coated with a 5% diphenyl / 95% phenyl arylene dimethyl polysiloxane phase, which can inhibit the formation of ring-shaped fragments of siloxane skeleton, thereby reducing column bleed and increasing the thermal stabilty. The stationary phase has better stability; and will not exhibit oxidative degradation when there is trace oxygen in the carrier gas.

  • DikmaCap - Model DM-1701 - Capillary Columns

    DikmaCap - Model DM-1701 - Capillary Columns

    14% cyanopropylphenyl / 86% dimethyl polysiloxane, general purpose column of mid-polarity phase.  DM-1701 is one of the most popular stationary phases. The mix of cyano and phenyl functional groups increases polarity and offers a different elution order compared to DM-1 or DM-5 column. DM-1701 column exhibits low bleed, high inertness and thermal stability because the polymer is characterized, and can be used for ECDs, NPDs and MSDs.

  • ProElut SPE Cartridges

  • ProElut - Model C18 - Silica-Based Sorbents

    ProElut - Model C18 - Silica-Based Sorbents

    ProElut C18 is the most broadly used SPE cartridge. It can be used to adsorb non-polar, slightly polar and mid-polar compounds. Polar materials such as salt cannot be retained on the sorbent, which makes ProElut C18 an excellent choice for desalting samples. In addition, non-polar and slightly polar disruptors in matrix such as fats, PAHs and phthalates can be retained by the sorbent, leaving ionic analytes eluted in the collector for...

  • ProElut - Model PLS - Polymer-Based Sorbents

    ProElut - Model PLS - Polymer-Based Sorbents

    ProElut PLS is a highly cross-linked polystyrene-divinylbenzene (PS-DVB) copolymer with high surface area (800 m2/g) and high capacity. It is an excellent choice for extraction of polar analytes in aqueous solvents where traditional C18 and C8 sorbents are not advisable because they are not “wettable”. It is ideal in screening applications where a broad range of analytes can be extracted.

  • ProElut - Model Florisil - Highly Selective Adsorbent

    ProElut - Model Florisil - Highly Selective Adsorbent

    Florisil is a highly selective adsorbent that has extensive utility in sample preparation, preparative and analytical chromatography. This sorbent is unique because it is comprised of extremely white, hard-powdered synthetic magnesium-silica gel.

  • ProElut - Model C18-U - Silica-Based Sorbents

    ProElut - Model C18-U - Silica-Based Sorbents

    ProElut C18-U has a non-endcapped octadecyl bonded phase that enables the silanols on the silica surface to be more active. However, the well-controlled silanol activity exhibits excellent selectivity towards polar compounds, especially amines such as tetracyclines.

  • ProElut - Model C8 - Silica-Based Sorbents

    ProElut - Model C8 - Silica-Based Sorbents

    ProElut C8 is very similar to the C18 phase, but has a shorter chain. This makes the phase less non-polar than C18, leaving non-polar compounds less retained by the sorbents. In this case, those compounds retained too strongly on the C18 can be effectively eluted if you choose the C8 phase. In addition, the C8 phase for polar interaction is somewhat higher than C18 because there is less coverage of the silica surface. However, this polar interaction...

  • ProElut - Model PXC - Highly Cross-Linked PS-DVB Copolymer

    ProElut - Model PXC - Highly Cross-Linked PS-DVB Copolymer

    ProElut PXC is a highly cross-linked PS-DVB copolymer with sulfonic acid as the functional group. It has both non-polar and cation exchange interactions and is therefore an excellent choice for extraction of basic organic compounds.

  • ProElut - Model AL-A - Specific Sorbents

    ProElut - Model AL-A - Specific Sorbents

    Base material: Al2O3 (Acidic), Particle Size: 125 μm. pH: 4.5. Retention mechanism: Lewis acid, polar, and ion exchange interactions. Application: Polar and anionic compounds.

  • Sample Preparation

  • ProElut QuEChERS - Kits for Multi-Pesticide Residue Analysis

    ProElut QuEChERS - Kits for Multi-Pesticide Residue Analysis

    In 2003, USDA scientists developed a groundbreaking sample preparation method for multi-pesticide residue analysis in a wide variety of food and agricultural products. The QuEChERS (pronounced “catchers“) procedure entails a number of simple processing steps and is thus fast and easy to perform with little susceptibility to errors. QuEChERS provides high recoveries for a very broad scope of pesticides belonging to various chemical classes...

  • ProElut LLE+ - Liquid-Liquid Extraction

    ProElut LLE+ - Liquid-Liquid Extraction

    ProElut LLE+ has been widely applied in the sample preparation of urine, whole blood, plasma, serum, gastric juice, liquor, amniotic fluid, and animal and plant tissue. Classical liquid-liquid extraction using a separation funnel is often associated with certain disadvantages such as formation of emulsion, poor phase separation, high solvent consumption, low degree of automation, and high personnel cost. However, liquid-liquid extraction is more...

  • ProMax - Syringe Filters

    ProMax - Syringe Filters

    Particulates can damage expensive equipment, valves, columns and pumps. They can also lead to erratic analytical results. Pre-filtering samples prior to analysis is critical in preventing column and frit blockage, undue wear on valve seals, and abnormally high operating pressures. ProMax syringe filters are designed for economical, rapid filtration of almost any solution prior to analysis. The housing attaches to any standard Luer lock syringe, so the...

  • Autosampler Vials

  • Dikma - Model 12 x 32 mm, 9 mm - 2 mL Wide Opening Screw Thread Vials

    Dikma - Model 12 x 32 mm, 9 mm - 2 mL Wide Opening Screw Thread Vials

    Superior thread design provides a more secure seal to the closure. 40% larger neck opening versus standard opening screw top vials improve sample accessibility. Uniformly flat bottom with insert for security. Write-on patches with graduations at 0.5, 1.0, and 1.5 mL. Pre-assembled cap and septa, convenient and direct use. Compatible with most of HPLC / GC autosamplers.