PTFE Coated Needles
The PTFE coated needles are used for thin layer chromatography (TLC) and are coated with PTFE 3/4" up the needle from the tip. The coating reduces the surface tension between the needle and the liquid making it ideal for reproducible sample spotting. These needles are available as a removable needle (RN) small or large hub and will connect to the appropriate RN syringes.
Resources
Hamilton's knowledge base provides a range of explanatory articles, frequently asked questions, and document downloads.
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Needle Point Style Guide
Hamilton offers a variety of different needle point designs. Needle termination selection is very important to the proper function an application. Lab needles need to perform in many different environments and terminations are available in non-coring, beveled, drilled side port and more. Click to see which version is best for your application. -
Needle Gauge Index
In addition to being inert stainless steel, lab needles require proper sizing in order to function properly. The diameter of a needle is defined by its gauge. In addition to being inert stainless steel, lab needles require proper sizing in order to function properly. Hamilton company offers a wide spectrum of gauges. This index displays the internal and outer dimensions as well as the dead volume. -
Needle Length Guide
Needle length is a critical consideration for every application. Each needle hub design requires a slightly different length definition. It doesn't matter if the application is utilizing lab needles for life science injection or environmental analysis of ground water, the injection needs to hit the right target. This guide illustrates how to make the different measurements.
Work with R&D engineers to customize Hamilton parts
Hamilton's "Custom Built" program puts you directly in contact with a Hamilton R&D Engineer to discuss your application and product needs. The engineer will point you to a standard solution or propose a customized solution to meet your needs.
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