Sander Kok Dot Com


The Chemical Laboratory area where you can find: chemical durability of synthetic materials to solvents, pKa pKb tables for acids and bases, UV cut-off for buffers, pressure converter and recipes for preparation of buffers. more


The Analytical Chemistry area for liquid chromatography users: HPLC pressure converter, data on miscibility and physical properties of solvents, eluotropic series, solvent optimization in isocratic and gradient HPLC, RP-HPLC equal solvent strength conversions, polymer to solvent resistance,  info on PEEK and stainless steel tubing, all you need to know about nuts and ferrules, column properties, column void volume calculatorselection charts and more. more


Lab-tools for chemists. Please take a look at freeware calculators that can make 'lab-life' easier for analytical chemists, specially for LC-IR experts! more

Polymer Analysis

A brief introduction on polymer analysis using Gradient Polymer Elution Chromatography (GPEC); a new technique which separates polymers and copolymers according to their chemical composition. Links to SEC resource sites, examples of GPEC and infrared detection are given and you can download posters. more


A list with polymers and their solvents, abbreviations of commonly used polymers, a selection of scientific literature published and polymer characterization by chromatographic, spectroscopic and spectrometric techniques. For some pages a password is required to enter. more

Help - Search this site!

Search this site on keywords and use the site map to explore the structure of this site.
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Infrared Spectroscopy

The starting page for infrared spectroscopists. Wavelength-to-wavelength and other calculators. A lot of links to all available infrared sites on the web: learning infrared, interpretation of spectra, on-line databases, correlation charts, properties of infrared window materials and optics basics more

Cool Sites

Hot sites on the web and a list for useful Chemistry sites as well, which is analytical oriented. If your favorite site is not in the list, you can mail that particular site to me. more


Here you can find the 'What's New' page, mail suggestions for site improvement, find links to other sites I've designed, links to web development sites, create your own metatags, look at the design history of this homepage in the early days and view site statistics (can be used as site-map).

Guest Book

Let me know you visited this site by  signing my guest book. Of course you can also view other comments.
last update: augustus 11, 2007
sander S.J. Kok is now doing research on gradient polymer elution chromatography GPEC interfacing and coupling infrared FTIR IR detection