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Chromatography Archives » Analytical Toxicology

Drugs Toxicological Analysis

High Performance Liquid Chromatography (HPLC)

The ability to separate and analyse complex samples is integral to the biological and medical sciences. Classic column chromatography has evolved over the years, with chromatographic innovations introduced at roughly decade intervals. These techniques offered major improvements in speed, resolving power, detection, quantification, convenience and applicability to new sample types. The most notable of these… read more »

Gas Chromatography

Gas chromatography (GC) is applicable to a wide range of compounds of interest to toxicologists, pharmaceutical and industrial chemists, environmentalists and clinicians. If a compound has sufficient volatility for its molecules to be in the gas or vapour phase at or below 400°, and does not decompose at these temperatures, then the compound can probably… read more »

Thin–layer Chromatography (TLC)

Introduction Thin–layer chromatography (TLC) is a widely used technique for the separation and identification of drugs. It is equally applicable to drugs in their pure state, to those extracted from pharmaceutical formulations, to illicitly manufactured materials and to biological samples. TLC as we know it today (see Fig 1) was established in the 1950s with… read more »

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