Sigma-Aldrich

Sigma-Aldrich offers a wide variety of syringes for autosamplers. Two brands of top-quality syringes, Hamilton and SGE, are offered which serve all major makes and models of GC and HPLC autosamplers.
Autosampler syringes are available in three different needle gauge styles to suit your particular application. The needles are constructed of narrow-bore stainless steel to minimize liquid dead volume, and have a special conical point that reduces the pressure needed to penetrate the autosampler septum.

• 23s gauge needles - for standard injections
• 26s gauge needles - for on-column and split/splitless injections.
• 23s-26s dual gauge needles - allow you to perform all your applications without the need to change syringes.Liquid and Gastight syringes in both Autosampler Fixed Needle or AutosamplerRemovable Needle styles. Dual gauge (23s-26s gauge, 1.7 inch length, point style #1 (cone shape) syringes combine the durability of a 23s-gauge needle with the performance capability of a 26s-gauge needle in split/splitless and on-column injection.

If you want reproducible injections at an economical price: Choose a fixed needle syringe (N or LTN suffix). N denotes an epoxy cemented 304 stainless steel needle inserted in the syringe barrel to a depth corresponding exactly to the zero graduation. LTN denotes a cemented Luer tip needle. Fixed needle syringes should not be heated above 50 °C.
If you like the simplicity of a fixed-needle syringe, but want to replace damaged needles, or change gauges to suit your applications: Select a syringe with a removable needle (RN). RN syringes allow easy replacement of damaged needles in the field. The needle seats to the zero graduation mark, providing the same characteristics as cemented needles. RN syringes should not be heated above 115 °C.

If you need a knurled hub: A knurled hub (KH) syringe creates a leak-tight seal between barrel and needle and may be retightened to compensate for wear. The male Luer accommodates a spacer for defined depth insertions. Exclusive to 7000 Series syringes.
If you want an autoclavable syringe with easy, fast needle replacement: Choose a syringe with a Luer Tip (LT). LT denotes a ground glass Luer tip suitable for mounting chromatographic needles. Order needles separately. Metal hubbed needles are not recommended. LT syringes can be autoclaved at 121 °C. Remove the plunger during sterilization.
If you like the Luer needle attachment, but need the security of a locked needle attachment: It is available with PTFE Luer Lock syringes (TLL). PTFE Luer Lock has a screwable PTFE center male Luer to hold your needle tightly in place. TLL used with 1000 Series provides an essentially inert syringe. Order needles separately. Metal or PCTFE hubbed needles can be used. Syringes with TLL connectiions shoyuld not be heated above 50 °C.
If you have problems with bent plungers: Plunger guides (WG suffix) reduce the expense of replacing or repairing syringes with bent plungers. Especially useful on syringes with small diameter plungers.
If you require precise control of sample size: Chaney adapters (CH suffix) ensure consistent sample delivery. You will know the sample size is right every time.

We are offering a wide collection of syringes including best multipack syringes.

We provide quality syringes, as we all know 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.