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Consumables and accessories For GC sample extraction 2020 Consumables and accessories Consumables and accessories Laboratory supplies for enhanced extraction and analysis of trace organic chemicals Markes International is one of the world’s leading providers of specialist GC sampling and sample…

INTRODUCTION TO HIGH-CAPACITY SORPTIVE EXTRACTION WHAT IS IT? Sorptive extraction is a technique for getting VOCs and SVOCs from a sample into a GC–MS. Uses a focusing step to enhance sensitivity Uses a relatively large volume of polymer sorbent to…

INTRODUCTION TO TUBE-BASED THERMAL DESORPTION WHAT IS IT? Tube-based thermal desorption is a technique for getting VOCs and SVOCs from a sample into a GC–MS. Samples vapours onto a sorbent-packed TD tube Uses a focusing step to enhance sensitivity Complete…

INTRODUCTION TO SPME AND SPME–TRAP WHAT IS IT? Solid-phase microextraction (SPME) is a technique for getting VOCs and SVOCs from a sample into a GC–MS. Uses a thin fiber to adsorb/ absorb compounds Suitable for solids (headspace) and liquids (headspace…