Proper Use, Handling and Care of Chromatographic Syringes

Asyringeis a high precision liquid measurement and transfer device capable of maintaining its designed performance if proper care is exercised in its use, handling and storage.

Proper use

• Physically examine for cracks, bent needles or dried residues before putting syringe to use
• Use syringe for dispensing liquids at room temperature only
• Rinse the sample liquid several times, overfill with excess sample, remove any air bubbles and slowly push the plunger to required volume mark before dispensing.
• Rinse several times with appropriate cleaning solvents followed by water and finally with acetone

Proper Handling

Dos

• Always grasp the barrel by its flange and plunger button to prevent body heat from affecting the barrel.
• After use place syringe in a stand.
• 如果垂直注入隔膜并且不施加过大的压力，以避免弯曲针或破裂枪管。
• If the plunger gets accidentally removed from barrel, wipe gently with lint- free tissue. Then insert and drain with water followed by acetone several times
• Air drying is preferable. Autoclaving of syringe with luer tip may be carried out up to a maximum temperature of 115°C.
• If syringe is not to be used for a long time then after drying store in original packing to prevent damage or breakage.

Don’ts

• 不要放在实验室长凳上或GC的顶部，因为它可以翻转和休息
• Avoid moving plunger in dry barrel as it can scratch the barrel walls and the plunger
• Never lift syringe by the needle

Cleaning Tips

Dos

• 对于常规清洁水，可以使用IPA，丙酮或甲醇。
• Rinse properly a number of times with recommended solvents before storage or next use
• Properly cleaned syringe does not require lubrication
• Partially clogged needles can be cleaned by making use of commercially available kits. It is best to replace fully clocked needles or complete syringe assembly. Use of force to clean such a needle with compressed air or liquid can result in a broken barrel

Don’ts

• Halogenated solvents such as dichloromethane should not be used as they can damage glue joints
• Never immerse the entire syringe in any cleaning agent container
• Use of grease should be avoided as it can lead to cross- contamination or plunger seizure in the barrel

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