Application/Description Recommended Syringe "SGE Code"
Economical Fixed Needle "F"
One syringe-one method
Sample < 70 °C
Inexperienced user Removable Needle "R"
One syringe-many methods
Sample <120 °C
Luer Lock needles and fitings Luer Lock "LL"
Luer Tip "LT"
Syringe filter
Pump priming
Volumes < 1UL (capillary column applications) Plunger-in-Needle "B"
Volumes > 1UL Plunger-in-Barrel
Hamilton 75N and 701N upgrade Plunger Protection
Rugged (student or tech) use Guided Plunger "GP"
Used by a variety of people
Dirty samples Teflon Tipped (Gas Tight) "GT"
Easy to remove and clean plunger
Gas or headspace

Application/Description Recommended Needle "SGE Code"
GC Autosampler
The cone shape needle has been specificaly developed to withstand the multi injection demands of Autosamplers. They are also standard on microvolume and valve syringes.
Cone needle tip - (Style # 1) "C"
Manual GC
A 20 ° bevel tip is the standard general purpose needle tip style supplied with SGE syringes. This style is designed for optimum septum penetration and prevention of spectrum coring.
Bevel needle tip - (Style # 2) "BV"
Manual GC
The same as bevel tip, except a 0.7mm OD reinforcing sheath is silver soldered over the standard needle to within 10mm of the tip. The sheath provides exceptional strength to the needle
Sheathed/Bevel needle tip - (Style # 4) "T"
HPLC valve injection syringes have 90 ° square tip needles with chamfered and polished edges to eliminate damage to the valve's rotor seal and stator face. The needle tip is also suitable for the pipeting of liquids
HPLC needle tip - (Style # 3) "LC"
Large Volume Injection
Liquid samples are filled and dispensed through the side hole. The solid domed tip minimizes septum damage.
Side hole domed needle tip -(Style # 5) "H"
This style needle is recommended for use with pre-drilled septa. The tip is rounde and polished to facilitate septum penetration.
Domed needle tip - (Style # 6) "D"
TLC/Gel Spot Plating
The needle has a 90 ° square tip and a 20mm long film of PTFE coated over the tip. Ideal for dispensing aqueous samples without wetting the outside of the needle
PTFE coated needle tip - (Style # 7) "P"