Month: May 2016

New Raptor™ FluoroPhenyl Phase: Get the Power of HILIC and RP Modes in One LC Column

  • Capable of both reversed-phase and HILIC separations.
  • Ideal for increasing sensitivity and selectivity in LC-MS analyses.
  • Offers increased retention for charged bases.
  • Part of Restek’s Raptor™ LC column line featuring 2.7 and 5 μm SPP core-shell silica.
  • Increased retention and selectivity for basic and hydrophilic compounds compared to a C18.

Switch to a Raptor™ FluoroPhenyl LC column for reliable performance in both reversed-phase and HILIC modes.

Raptor™ FluoroPhenyl LC Columns Sales Sheet – Restek

Read more about superficially porous particles here:

Performance characteristics of new superficially porous particles (Journal of Chromatography A, Volume 1258, 5 October 2012, Pages 76–83, doi: 10.1016/j.chroma.2012.08.036)
Applications of superficially porous particles: High speed, high efficiency or both? (Journal of Chromatography A, Volume 1228, 9 March 2012, Pages 72–88)
Superficially Porous Particles: Perspectives, Practices, and Trends (LCGC North America, Volume 32, 2014, Issue 6, pg 420–433)

For more information contact our sales team at BGB Analytik or visit our shop.

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PressFit Connectors

PressFit Connectors and Splitters are made out of borosilicate glass to connect two or more capillary columns together. The seal of this connection type is the coating on the outside of the capillary tubing. This polyimide is soft and adhesive. Many applications in Gas Chromatography and Mass Spectrometry are possible.

  • Couple a capillary column with a pre-column
  • Couple capillary columns of different polarities
  • Couple capillary columns for increasing length
  • Repair a broken capillary column
  • Split before and/or after the capillary column
  • Switch between different capillary columns (multidimensional GC)

Refer to the following publications for examples of how PressFit connectors are used by researchers:
Fused-silica ends for glass capillaries: widening glass capillary butts by a heated tungsten point for preparing press-fit connections (J. Chromatography A, 1988, 435, pp 204-209)
Characterization of Atypical Off-Flavor Compounds in Natural Cork Stoppers by Multidimensional Gas Chromatographic Techniques (J. Agric. Food Chem., 2015, 63 (35), pp 7840–7848)
Analysis of Neurotransmitters, Neurosteroids and their Metabolites in Biological Samples (Academic dissertation by Tina Suominen, University of Helsinki, Finland, 2015

Visit our shop for more information.

A Fast Dilute-And-Shoot Method for Catecholamine and Serotonin Metabolites

Commercial kits for the analysis of vanillylmandelic acid (VMA), homovanillic acid (HVA), and 5-hydroxyindoleacetic acid (5-HIAA) require extensive sample preparation and chromatographic analysis times up to 16 minutes. In contrast, using Restek’s dilute-and-shoot method and a Raptor™ Biphenyl column, these catecholamine and serotonin metabolites can be measured in a quick 5-minute analysis. This method is applicable to clinical analysis of VMA, 5-HIAA, and HVA in urine and provides the benefit of both fast analysis times and low-cost sample preparation procedures.

View chromatogram