... ,1000ul Fixed Syringe (for GC)--Teflon plunger, Beveled needle* Syringes for Liquid Chromatography0.5,1,5ul Fixed Syringe ... , Beveled needle* Removable Needle Syringes10,25,50,100ul Replaceable Syringe--Replaceable needle250,500,1000,2500,5000,10000ul Luer Lock Syringe--Teflon ... plunger, Cone-shaped needle head secured by a Twist-lock micro liter syringe, ...