HAIFILTER

A simple, yet effective, means of protection is to place a filter in the flow path between the sample injection valve and the HPLC column. While this technique is commonly used, it is also commonly plagued by leaky holders and significant performance loss. The Higgins Analytical HAIFILTER resolves all of these problems!

Simplicity and Flexibility:  The Higgins Analytical HAIFILTER provides efficient and leak-free in-line filtration, yet it does not require any tools. To make it even more convenient, the HAIFILTER is designed to connect directly to the inlet fitting on the HPLC column, maximizing performance, and minimizing hardware. The 0.5µm porosity frits will remove much of the particulate contamination described on the previous page that is responsible for column pressure build up and plugging. The holder's inert construction, and the availability of PEEK and titanium as well as stainless steel frits, insures that the HAIFILTER can address all of your in-line filtration needs.

Performance: Try the experiment summarized in the chromatograms below with another manufacturer's in-line filter. You may be very surprised how much larger the contribution to peak volume variance is in comparison to the 28µL2 at 200µL/min obtained with the HAIFILTER.

Without HAIFILTER	With HAIFILTER
250x4.6mm P/N: LS-2546-C185	250x4.6mm P/N: LS-2546-C185
250x2.1mm P/N: LS-2521-M185	250x2.1mm P/N: LS-2521-M185

• Filter Starter Kits include a package of 10 filters (HF-SFILT), a 10cm piece of PEEK tubing, and a PEEK bushing and ferrule.
• The FF-FKIT includes a package of 10 filters, two 10cm pieces of PEEK tubing and two PEEK bushings and ferrules.

• These replacement filters are not compatible with the HAIGUARD Holder.

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© 1996, 1997, 1998, 2003 Higgins Analytical, Inc (Version Date: 10June03)
REV 6/10/03