Headspace vial, screw top, rounded bottom (vial only), volume 20 mL, clear glass vial, pkg of 100 ea

SKU:
SU860097
  • $54.60

    • Description

    Headspace vial, screw top, rounded bottom (vial only), volume 20 mL, clear glass vial, thread for 18, O.D. × H 22.5 mm × 75.5 mm, pkg of 100 ea

    material

    clear glass vial

    feature

    closure type screw top vial
    round bottom

    packaging

    pkg of 100 ea

    O.D. × H

    22.5 mm × 75.5 mm

    volume

    20 mL

    fitting

    thread for 18

    compatibility

    for use with CTC PAL (Varian, Gerstel, Atas, Shimadzu)

    These vials require a special cap with an 18 mm thread. The standard 18-400 threaded caps will not fit this vial. The part numbers for caps that are available for these vials are SU860101(with PTFE/silicone, 1.3 mm thick), SU860102 (with PTFE/butyl, 1.6 mm thick), and SU860103 (with PTFE/silicone, 1.5 mm thick). These caps are made from stainless steel and are magnetic.

    Application

    Headspace vial may be used for the following:
    • In the determination of partition coefficient of ethyl acetate in water at 0° C from independent analyses of the total amount of ethyl acetate present in the vial, by automatic equilibrium headspace gas chromatography and vapor phase calibration (VPC).
    • It may be used in the analysis of volatile polar residual solvents present in pharmaceutical products, during development and optimisation of headspace SPME method by GC-MS.
    • It may also be used in the isotopic analysis of 18O in the leaf water of C3 and C4 grasses, during establishing a grassland signature in veins, as it was found that grasses with different photosynthetic pathway have different interveinal differences.
    • It may also find application, in investigating metabolism by Pseudomonas fluorescens of volatile haloaliphatic hydrocarbons like 1,2-dichloroethane and 1,2-dichloropropane, which are some of the major contaminants of underground aquifers.