We offer high-quality syringes for Chromatography and other Analytical applications. The correct syringe choice is vital to ensure proper fit and operation within the instrument. Syringes must ensure a tight and secure fit in the injection port and withstand repeated injection cycles without bending or breaking. It is critical for syringes to deliver accurate and precise volumes with no dead volume or carryover between injections. Chose from Hamilton, SGE, and VICI Precision Sampling gas and liquid syringes and accessories. We offer syringes in a variety of needle lengths, gauges, and point styles in a wide range of styles and volumes for your application.
Syringe Care - Proper syringe care ensures consistent injections and long syringe life. Syringes are precision instruments. The care you take in using, handling, and storing them is key to consistent injections, quality chromatograms, and long syringe life.
Generally, for consistently accurate injections, the sample size should not be less than 10 or more than 80% of the syringe capacity.
Temperatures above 50 °C can damage most fixed-needle syringes, due to expansion of the metallic needle.
Routinely inspect your syringe for damage. Look for hairline cracks, and discard any syringe with a potentially unsafe barrel. The needle tip must be free of barbs. Barbs will tear the septum, creeating particles that can clog the needle or deposit in your chromatographic system.
Never store a syringe without cleaning it. Use caution when cleaning syringes containing epoxy glue or PTFE materials. Epoxy glue is not completely resistive to every solvent. A solvent such as methanol, methylene chloride, acetonitrile, acetone, or butyl amine (and others) can result in a contaminated plunger, adherence of the plunger into the barrel, a loose needle, or a clogged needle.
If your syringe contains a PTFE tip, be sure to replace the plunger and tip assembly immediately if metal is exposed. The exposed metal plunger scrapes the glass of the syringe barrel, producing glass fragments that cut grooves in the PTFE tip. These grooves allow sample to leak past the tip. Caustic samples or cleaning solutions that seep under the PTFE tip destroy the sharp barb that holds the PTFE tip on the plunger. The tip, when loosened, could slip off during sample aspiration.
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