Applications Employing Capillary

When summarizing uses for capillary, it is difficult to make an all-inclusive list. As technology expands, so does the number and variety of applications. As a starting point for new ideas, here are a few well established techniques that rely on capillary:

• Analytical Chemistry... Capillary is a fundamental component in Gas Chromatography, Capillary Electrophoresis, Capillary Liquid Chromatography, Flow Cytometry, and a number of other techniques.
• Combined-Method Analytical Chemistry... Hyphenated techniques rely on capillary for easy, compact interface designs.
• Gas & Fluid Delivery... Capillary can withstand high temperature and corrosive or hazardous environments, making it a good choice for transfer lines and connecting to micro-accessible areas.
• Drug Delivery Systems.... The high purity, non-contaminating interior surface, and wide range of internal diameters make capillary a key component in these systems.

• Flow Cells... Small ID capillary make excellent, low band-broadening transfer lines to flow cells. Unique spectral properties make them ideal for on-column detection, even into the deep UV.
• Flow Restrictors... Capillary provide accurate mass flow control, with strong adherence to Poiseuille’s Equation.
• Micro-pipettes... Whether used as produced, or “pulled” to a Pasteur-type tip, capillary is widely used as pipettes, predominately in neurological sciences.
• Liquid Light Guides... Capillary offers flexible fluid containment for energy transmission via high index fluids.
• Hollow Wave Guides... Dielectric interior coating of capillary generates low cost, long wavelength IR Waveguides.
• Micro Insulators... Capillary can be used over conductors to provide 25 kV/mm or more electrical insulation. Polymer coatings withstand up to 400ºC (short term); aluminum coatings can operate up to 500ºC. Polymicro capillary with no external coating can withstand temperatures in excess of 1000ºC.
• Coupling Ferrules... Laser micro-machined capillary is ideal for coupling optical fibers as well as capillary. The popular Inner-LokTM is an example of this technology.
• Micro-optical Elements... Capillary is found in a variety of instrument applications, from optical detection cells to fiber optic alignment ferrules.

Technical Data Disclaimer

The information given herein, including drawings, illustrations and schematics (that are intended for illustration purposes only), is believed to be reliable.  However, Polymicro Technologies makes no warranties as to its accuracy or completeness and disclaims any liability in connection with its use.  Polymicro Technologies only obligation shall be as set forth in Polymicro Technologies' standard terms and conditions of sale for this product and in no way will Polymicro Technologies be liable of any incidental, indirect or consequential damages arising out of the sale, resale, use or misuse of the product.  Users of Polymicro Technologies' products should make their own evaluation to determine the suitability of each such product for the specific application.