Chromatography
Chromatography is the process whereby a mixture of chemicals in gas or liquid form (the moving phase) moves over the surface of another matter in liquid or solid form (the stationary phase). Some of the molecules of the moving phase are sucked towards the surface of the solid and stuck there temporarily. As this separation occurs, the components can be easily identified individually since they all move in different ways and at different speeds. There are a wide range of chromatography techniques. One uses paper as the stationary phase, which is dipped in a solvent. Through capillary action, the solvent travels up the paper and separates. In column chromatography, the stationary phase is a vertical glass jar, which is packed with a solid. The moving phase is pumped in at high pressure and splits into components, which are removed for analysis. Also known as vapour-phase (VPC) or gas-liquid partition (GLPC) chromatography, this technique uses gases as the moving phase. A tiny sample is placed in a syringe and injected in the machine where it is vaporised exiting through an electronic detector. Chromatography works with tiny samples and low concentrations and is widely used for forensic science, environmental studies and in medical research.
-
50UL RN GT SYRINGE50MM LENGTH, 22 GAUGE (1 Supplier)
Request a Quote -
50UL SYRINGE FOR EVOL SYSTEM (1 Supplier)
Request a Quote -
5µL RN SYRINGE 42MM L 23S CONE (1 Supplier)
Request a Quote -
5µL RN SYRINGE 42MM L 26S CONE (1 Supplier)
Request a Quote -
5µL SYR FN 50MM T (1 Supplier)
Request a Quote -
5µL SYRINGE FN 42MM A GAUGE 23, CT (1 Supplier)
Request a Quote -
5µL SYRINGE FN 42MM GAUGE 23-26, CT (1 Supplier)
Request a Quote -
5µL SYRINGE FN 42MM GAUGE 23, CT (1 Supplier)
Request a Quote -
5µL SYRINGE FN 50MM CTC GAUGE 26, CT (1 Supplier)
Request a Quote -
5µL SYRINGE FN 50MM GAUGE 26, BT (1 Supplier)
Request a Quote -
5µL SYRINGE FN 50MM T GAUGE 23, CT (1 Supplier)
Request a Quote -
5µL SYRINGE FN 70MM PE GAUGE 26, CT (1 Supplier)
Request a Quote -
5ML FN GT HS SYR 56MM L 22S S HOLE (1 Supplier)
Request a Quote -
5ML FN GT SYRINGE 50MM L 22 BEVEL (1 Supplier)
Request a Quote -
5ML FN GT SYRINGE 50MM L 22S BLUNT (1 Supplier)
Request a Quote -
5ML FN GTSYRINGE50MML 22 SIDE HOLE (1 Supplier)
Request a Quote -
5ML GN GT HS SYRINGE65MM LGTH, 22 GAUGE (1 Supplier)
Request a Quote -
5ML LUER-LOK SYRINGE1/PK (1 Supplier)
Request a Quote -
5ML LUER-TIP SYRINGE GT (1 Supplier)
Request a Quote -
5UL FN SYRINGE 50MM LENGTH26 GAUGE BEVEL (1 Supplier)
Request a Quote -
5UL FN SYRINGE 57MM LENGTH23S GAUGE CONE (1 Supplier)
Request a Quote -
5UL FN SYRINGE 85MM LENGTH23S GAUGE CONE (1 Supplier)
Request a Quote -
5UL FN SYRINGE 85MM LENGTH26S GAUGE CONE (1 Supplier)
Request a Quote -
5UL FN SYRINGE FOR RHEODYNE50MM LENGTH 2 (1 Supplier)
Request a Quote -
5UL SYRINGE FOR EVOL SYSTEM (1 Supplier)
Request a Quote