Welch Materials / Welchrom

Welchrom

Welchrom^® HPLC columns are manufactured by Welch Materials Inc., located in Shanghai, China. The phases are based on high-purity spherical silica gel, which is available in two different reversed-phase modifications. Due to a new bonding and endcapping technique, Welchrom^® columns show symmetrical peak shape and low back pressure.

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Welchrom® C18, 5µm, 2.1x250mm, HPLC Column

WE-00310-02016

€376.00

Product Type: HPLC Column Bet Surface Area [m2/g]: 320.0 Carbon Load: 19.0 % Delivery Time: approx. 7 days Chemistry: C18 (RP-18, ODS, Octadecyl) Column Type: Analytical Column Endcapping: endcapped Manufacturer: Welch Materials Hardware Type: Ready-to-use Column Matrix: Silica Internal Diameter: 2.1 mm Length: 250 mm Particle Morphology: spherical, fully porous pH Minimum: 1.5 pH Maximum: 10.0 Pore Size: 120 Å Technology: HPLC USP Class: L1

Welchrom® C18, 5µm, 2.1x200mm, HPLC Column

WE-00310-02015

€358.00

Product Type: HPLC Column Bet Surface Area [m2/g]: 320.0 Carbon Load: 19.0 % Delivery Time: approx. 7 days Chemistry: C18 (RP-18, ODS, Octadecyl) Column Type: Analytical Column Endcapping: endcapped Manufacturer: Welch Materials Hardware Type: Ready-to-use Column Matrix: Silica Internal Diameter: 2.1 mm Length: 200 mm Particle Morphology: spherical, fully porous pH Minimum: 1.5 pH Maximum: 10.0 Pore Size: 120 Å Technology: HPLC USP Class: L1

Welchrom® C18, 5µm, 2.1x150mm, HPLC Column

WE-00310-02014

€318.00

Product Type: HPLC Column Bet Surface Area [m2/g]: 320.0 Carbon Load: 19.0 % Delivery Time: approx. 7 days Chemistry: C18 (RP-18, ODS, Octadecyl) Column Type: Analytical Column Endcapping: endcapped Manufacturer: Welch Materials Hardware Type: Ready-to-use Column Matrix: Silica Internal Diameter: 2.1 mm Length: 150 mm Particle Morphology: spherical, fully porous pH Minimum: 1.5 pH Maximum: 10.0 Pore Size: 120 Å Technology: HPLC USP Class: L1

Welchrom® C18, 5µm, 2.1x125mm, HPLC Column

WE-00310-02013

€329.00

Product Type: HPLC Column Bet Surface Area [m2/g]: 320.0 Carbon Load: 19.0 % Delivery Time: approx. 7 days Chemistry: C18 (RP-18, ODS, Octadecyl) Column Type: Analytical Column Endcapping: endcapped Manufacturer: Welch Materials Hardware Type: Ready-to-use Column Matrix: Silica Internal Diameter: 2.1 mm Length: 125 mm Particle Morphology: spherical, fully porous pH Minimum: 1.5 pH Maximum: 10.0 Pore Size: 120 Å Technology: HPLC USP Class: L1

Welchrom® C18, 5µm, 2.1x100mm, HPLC Column

WE-00310-02012

€311.00

Product Type: HPLC Column Bet Surface Area [m2/g]: 320.0 Carbon Load: 19.0 % Delivery Time: approx. 7 days Chemistry: C18 (RP-18, ODS, Octadecyl) Column Type: Analytical Column Endcapping: endcapped Manufacturer: Welch Materials Hardware Type: Ready-to-use Column Matrix: Silica Internal Diameter: 2.1 mm Length: 100 mm Particle Morphology: spherical, fully porous pH Minimum: 1.5 pH Maximum: 10.0 Pore Size: 120 Å Technology: HPLC USP Class: L1

Welchrom® C18, 5µm, 2.1x75mm, HPLC Column

WE-00310-02011

€304.00

Product Type: HPLC Column Bet Surface Area [m2/g]: 320.0 Carbon Load: 19.0 % Delivery Time: approx. 7 days Chemistry: C18 (RP-18, ODS, Octadecyl) Column Type: Analytical Column Endcapping: endcapped Manufacturer: Welch Materials Hardware Type: Ready-to-use Column Matrix: Silica Internal Diameter: 2.1 mm Length: 75 mm Particle Morphology: spherical, fully porous pH Minimum: 1.5 pH Maximum: 10.0 Pore Size: 120 Å Technology: HPLC USP Class: L1

Welchrom® C18, 5µm, 2.1x50mm, HPLC Column

WE-00310-02010

€300.00

Product Type: HPLC Column Bet Surface Area [m2/g]: 320.0 Carbon Load: 19.0 % Delivery Time: approx. 7 days Chemistry: C18 (RP-18, ODS, Octadecyl) Column Type: Analytical Column Endcapping: endcapped Manufacturer: Welch Materials Hardware Type: Ready-to-use Column Matrix: Silica Internal Diameter: 2.1 mm Length: 50 mm Particle Morphology: spherical, fully porous pH Minimum: 1.5 pH Maximum: 10.0 Pore Size: 120 Å Technology: HPLC USP Class: L1

Welchrom® C18, 5µm, 2.1x30mm, HPLC Column

WE-00310-02009

€293.00

Product Type: HPLC Column Bet Surface Area [m2/g]: 320.0 Carbon Load: 19.0 % Delivery Time: approx. 7 days Chemistry: C18 (RP-18, ODS, Octadecyl) Column Type: Analytical Column Endcapping: endcapped Manufacturer: Welch Materials Hardware Type: Ready-to-use Column Matrix: Silica Internal Diameter: 2.1 mm Length: 30 mm Particle Morphology: spherical, fully porous pH Minimum: 1.5 pH Maximum: 10.0 Pore Size: 120 Å Technology: HPLC USP Class: L1

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Technical Data

Phase-Name	Modification	Particle Size	Pore Size	End-capping	C-Content	USP	Surface	pH-Range	Tmax
Welchrom^® XB-C18	C₁₈	5 µm	120 Å	+	17%	N/A	320 m²/g	1.5‒10.0	N/A
Welchrom^® XB-C8	C₈	5 µm	120 Å	+	11%	N/A	320 m²/g	1.5‒10.0	N/A

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