Hamilton Company offers the most comprehensive selection of standard and custom syringes in the industry

The needles on Thin Layer Chromatography (TLC) syringes are coated from the point for 3/4” with a PTFE coating. The coating reduces the surface tension between the needle and the liquid making it ideal for reproducible sample spotting. The TLC syringe is available as a cemented needle (SNTLC) or as a replacement needle to be installed into a standard removable needle (RN) syringe. Syringes in this category are either 700 series Microliter™ or 1700 and 1000 series Gastight® syringes. Microliter™ syringes have a stainless steel plunger that is hand fitted to the glass barrel and are designed for liquid sampling. Gastight® syringes have a PTFE plunger tip that creates tight connection between the syringe barrel and plunger allowing for liquid or gas sampling.

Syringe Terminations
Cemented Needle (N)- For low volume syringes, the needles are cemented into the glass syringe barrel at a point corresponding to the zero graduation mark. With this termination, dead volume is limited to the internal volume of the needle. Not autoclavable. Needle gauge is determined by the syringe volume and is not user-selectable.

Removable Needle (RN)- The needles are removable and are a Hamilton-specific design. The design allows the needles to seat precisely at the zero graduation mark of the syringe. Users can select the needle gauge, length, and point style to optimize the syringe for custom applications. Additionally, this termination allows for a removable needle without increasing the dead volume of the syringe and is ideal when there is a risk of the needle clogging. Autoclavable when disassembled. Repeated autoclaving will shorten syringe life.

Needle Point Styles
Point Style 3T - Blunt needle point for thin layer chromatography (TLC) applications. Needles are coated with PTFE 3/4" up from the needle tip. Available gauges: 26s, 26, 22s, 22.

Each is manufactured to achieve the highest level of accuracy and precision possible.