Successful liquid-phase separation depends on the quality of the stationary phase support and the chemical resistance of the column body. LabFriend provides a professional selection of glass chromatography columns, located within our liquid chromatography section under the broader chromatography category. These columns are manufactured from high-grade borosilicate glass to ensure maximum purity and durability for diverse laboratory applications.
Why Choose Professional Glass Chromatography Columns?
Our curated collection of glass columns and packing materials is designed for precise flow control and optimal sample recovery:
- Precision Columns with Sintered Frits: We stock the Lenz-Laborglas Chromatographic Columns with Frit, featuring PTFE stopcocks for fine-tuned elution control and integrated porous discs to support the stationary phase.
- Standard Laboratory Glass Columns: Utilize ISOLAB Chromatography Columns, offering a 400 mm length and 20 mm diameter, ideal for routine gravity-fed or low-pressure separations.
- High-Purity Packing Supports: Explore Glaswarenfabrik Karl Hecht Extra Fine Glass Wool, available in 30 g and 1000 g packs, essential for securing packing materials in columns without integrated frits.
- Specialized Stopcock Designs: Our range includes various Lenz-Laborglas models with high-quality stopcocks that provide leak-proof operation during extended chromatographic runs.
LabFriend supplies glass columns from manufacturers trusted globally for glassware precision:
- Lenz-Laborglas: Specialists in laboratory glass technology, providing a wide array of columns with integrated frits and PTFE components.
- ISOLAB: Providers of reliable and cost-effective laboratory glassware designed for standard chemical and biological analysis.
- Glaswarenfabrik Karl Hecht (Assistent): Renowned for high-quality glass consumables, including extra fine glass wool for column preparation.
- Macherey-Nagel: A global leader in separation science, offering specialized columns and media for professional chromatography.
Proper column selection is vital for effective separation; to further enhance your chromatography workflow, we recommend exploring these related categories:
- HPLC Accessories: Find the PEEK tubing and fingertight fittings required for high-pressure liquid chromatography systems.
- Viscometers: Measure mobile phase or sample viscosity to optimize flow rates through glass or capillary columns.
- Laboratory Timers: Essential for tracking elution times and ensuring consistent flow monitoring during manual chromatography.
- Temperature & Humidity Loggers: Monitor environmental conditions that may affect the reproducibility of sensitive chromatographic separations.
Unsure whether a column with an integrated frit or a simple stopcock design is better for your stationary phase? Our team provides local technical support to help you find the perfect glassware solution with fast shipping and competitive pricing.
Frequently Asked Questions
1. What is the advantage of a glass column with an integrated frit?
An integrated frit, like those in Lenz-Laborglas columns, eliminates the need for glass wool plugs, providing a flat and uniform surface that helps prevent "channeling" in the stationary phase.
2. Why is borosilicate glass used for chromatography columns?
Borosilicate glass offers superior chemical resistance to most solvents and acids, ensuring that no contaminants leach from the column walls into your purified sample.
3. What is the role of glass wool in chromatography?
In columns without a built-in frit, a small plug of Karl Hecht extra fine glass wool is placed at the bottom to support the stationary phase while allowing the mobile phase to pass through.
4. Are the PTFE stopcocks on these columns replaceable?
Many professional columns from Lenz-Laborglas feature standard-sized PTFE stopcock plugs that can be replaced if they become worn, ensuring the long-term utility of the glass column.
