Replaces separate syringes and syringe filters. Autovials are comprised of two parts: a graduated filter barrel and a plunger. The proven design features an integral filter, built-in air purge and a support stand which protects the recessed slip Luer tip. The Autovial filter is selected according to membrane compatibility with the sample. In practice, the sample is poured into the 12 mL capacity filter barrel. The plunger is inserted into the barrel until the bottom is securely in place; there is a gap of air between the sample and the plunger. The tip of the Autovial is placed into the mouth of an autosampler vial or container and the plunger compressed. The plunger is compressed until it reaches the bottom and the membrane is purged with air for maximum sample recovery. For direct instrument injection, a needle is placed on the Autovial slip-Luer outlet. Autoclavable.
Autovial membranes are available for various applications:
NYLON: Membrane for aqueous and organic samples within a pH range of 3-10.
PTFE: Teflon® membrane for samples with >50% organic solvent.
PVDF: Low nonspecific protein binding membrane for samples in aqueous solutions and/or organic solvents.
GMF: Glass microfiber depth filter for samples in aqueous or organic solutions.
