Pinnacle II HPLC Columns

2002 / 2003

• Featuring Restek silica -- manufactured, bonded, and QA tested in-house

• Wide range of applications: environmental, pharmaceutical, nutraceutical,  foods, flavors, and fragrances

• Currently available with C18, C8, phenyl, and cyano stationary phases

 Pinnacle columns are manufactured  using Restek silica, which features a controlled particle size distribution and spherical shape.
 It is available in 5µm particle size, with a pore diameter centered at 110Ã, and a surface area of ~180m²/g. These silica  particles address the growing demand for narrower columns and faster flow rates  in an attempt to decrease analyses times.
The phases offer similar selectivity  to the original line of Pinnacle 11 columns.

With the design of Pinnacle II columns, Restek  achieves complete control over the HPLC column manufacturing chain. We can go a  step further than most to ensure consistent quality and reproducibility because  we manufacture the silica, perform the stationary phase bonding and column  packing in-house, and apply our stringent quality testing throughout the whole  process. The ability to consistently manufacture silica at a specified pore  volume, surface area, pore size distribution, and particle size is part of the  equation in providing columns that achieve reproducible analyses.

Pharmaceutical Applications

Notice how a Pinnacle II C18 column provides good peak shape for  acetaminophen and codeine phosphate. 
You'll get this  level of quality in your results, from analysis to analysis.

Nutraceutical and Food Applications

The Institute for Nutraceutical  Advancement (INA) has published a series of methods for the determination of  active compounds in nutraceutical products.
Pinnacle II HPLC columns exhibit excellent peak shapes and  reproducibility for natural product analyses.

As society's taste in spicy foods grows, so does the need to test and  classify products and raw materials for their heat levels. AOAC Method 995.03  specifies the separation of the three target capsaicinoids responsible for the  heat in chili peppers. Using a gradient elution program, an efficient separation  of these compounds is achieved with the Pinnacle IIâ„¢ C18 column.

Environmental Applications

Pinnacle II HPLC columns provide a cost-effective tool for many traditional methods used in  the environmental industry, including US Environmental Protection Agency (EPA) 
Methods 8310 and 8330, as well as methods for analyzing BTEX) and carbamates.

Restek controls Pinnacle II raw material  quality from the very beginning of the silica manufacturing process. Add our  phase bonding and column packing experience to this high level of quality  control, and you benefit from even better column-to-column and  analysis-to-analysis reproducibility.

Pinnacle Applications

Many New Phases
Coming Soon!

Additional stationary phases will be  joining this family of products. Keep watching our web site for additional  stationary phases as they are  introduced.

Base-Deactivated  Columns Coming Soon !

A line of columns that offer the structural integrity  of Type A silica, combined with an improved treatment for base deactivation.  Excellent for analyzing basic compounds.

Hot Tech Tip

High backpressure is one of the most common problems  encountered when performing HPLC analysis. Normal column backpressure is  observed after a new column has been installed and equilibrated with the mobile  phase. Unfortunately, this pressure will often increase with use because of  particles collecting on the column inlet frit.

These particles can be sample impurities, mobile phase contaminants, or  materials from the injector or autosampler rotor seal. The presence of particles  can result in increased backpressure, split peaks, tailing, and eventually  over-pressure shut-down. In some circumstances, these problems can be corrected  by back-flushing the column. However, in many cases the result is an unusable  column.

To reduce backpressure problems, all samples and mobile phase solvents must  be filtered before use, and rotor seals should be changed on a routine basis.  Along with these preventative measures, it is advisable to use column prefilters  such as the Trident Direct column protection system. Particles build up on the  inexpensive, replaceable frit in the prefilter, instead of the permanent frit at  the head of the column.

TRIDENT Guard Columns

Restek offers the Trident Direct guard cartridge system. All of our Pinnacle II phases are available in guard columns. The  Trident Direct system features three levels of protection against many of the  contaminated samples that analysts inject into a system.

Restek also offers a full line of HPLC accessories -- everything from PEEK fittings to syringes.

For more information on the Trident Direct guard column system and a  complete product offering, see elsewhere
OR request lit. cat.# 59314.

Pinnacle II
A New Line of HPLC  Columns
from Restek

CT-Restek HOME

by Greg France, HPLC Product Marketing  Manager
previous Pinnacle II 2001 page Pinnacle 2003 New Columns
NEW 2002 LOW Prices expanded range ID and Lengths
in both 3u and 5u

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NEW Website

Chromalytic Technology - Australian Distributors 'specialising in chromatography'
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