Hans‐Gerd Janssen

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About

Hans‐Gerd Janssen is a leading figure in analytical chemistry, with a primary focus on the development and application of advanced separation techniques, particularly gas chromatography (GC) and comprehensive two-dimensional gas chromatography (GC×GC). His major contributions lie in the automation and high-resolution analysis of complex mixtures, especially in the fields of food chemistry and petroleomics. A hallmark of his work is the "Automated determination of fatty acid methyl ester and cis/trans methyl ester composition of fats and oils" (2001, 26 citations), a method that streamlined the analysis of edible oils and fats, enabling precise quantification of both total fatty acids and their cis/trans isomers—a critical capability for nutritional labeling and quality control. Beyond this, his research has significantly advanced the understanding of column technology, modulation, and data processing in GC×GC, with his work collectively amassing thousands of citations. Janssen’s impact is further underscored by his role in bridging academic research with industrial applications, having held positions at Unilever and the University of Amsterdam. His achievements include pioneering the use of GC×GC for detailed profiling of complex samples, setting new standards for separation science.