•  VertiPak™ HLP-WA SPE is mixed-mode, highly cross-linked
    Vinylpyrazine-Divinylbenzene Copolymer-Ethylenediamine-
    N-propyl (VPZ-DVBE) polymeric sorbent offering both
    strong reverse phase interaction and weak anion-exchange
    interaction with interference-free extraction, compatability
    with LC-MS or GC-MS.
•  Needs no condition solvent, aqueous sample can be loaded
    directly to the dry sorbent bed.
•  Exhibits very high binding capacity over mixed-mode  
    silicabased sorbent, up to 30% of sorbent weight allowing
    larger sample loads or a smaller sorbent bed resulting in
    high, reproducible recoveries and less solvent usage.
•  Exhibits excellent mass transfer and mechanical strength
    for acidic polar compounds in an aqueous sample or a
    bioloical fluid sample.
•  Typical applications include acidic drugs and metabolites
    from biological fluids, environmetal pollutants from water,
    drugs of abuse and metabolites from urine e.g. salicylic
    acid, ibuprofen, acetaminophen, 11-nor-delta-9-
    tetrahydrocannabinol-9-carboxilic acid without acid
    modifiers.
•  Tube format is available in 4 tube sizes.
•  Tubes are packaged in zip sealing bag protective from
    moisture and light.
•  Includes a Performance report including the QC results, lot
    chromatogram and lot recovery test.