Welch Materials

Welch Materials Inc. is manufacturer of HPLC-columns, Solid Phase Extraction (SPE) products, GC columns, bulk material and chromatography accessories. The company was founded 2003 in Maryland, USA and Shanghai, China by several PhD scientist, who gained much experience in the field of chromatography. Welch Material’s HPLC brand names are Ultisil (in China promoted as Ultimate), Xtimate and Topsil, which are listed in the official United States Pharmacopeia.

Picture of a column and packaging from Welch

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Technical Data

Which product line can be used when?

Boltimate: HPLC columns based on core-shell particles for fast and efficient separations at low pressures
Ghost Buster Columns: Special pre-columns for the suppression of ghost peaks caused by non-polar impurities
Topsil: Silica-based HPLC columns in all common modifications for small molecules and peptides
Ultisil: Silica-based HPLC columns with a wide range of modifications and application-specific options
Xtimate: HPLC columns based on polymers or hybrid silica for various applications and separation techniques
WEL: Columns for gas chromatography (GC) available in common modifications and as PLOT columns
WM: Durable and efficient GC capillary columns as a replacement for known phases and with special options for GC-MS
Welchrom: Silica-based HPLC columns with innovative endcapping for reversed-phase chromatography
WelFlash: Flash columns based on spherical or amorphous silica, available in various modifications

Technical Data

Which product line can be used when?

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