Chromatography Column 12 Inch Glass Rotaflow Stopcock EISCO

Description

Product Overview

The EISCO Chromatography Column, measuring 12 inches in length, is engineered for precision and reliability in a wide range of liquid chromatography applications. Constructed from high‑grade borosilicate 3.3 glass, the column offers exceptional chemical resistance, thermal stability, and mechanical strength, allowing it to withstand repeated cycles of high pressure and aggressive solvents without compromising performance. The 19/26 joint size provides a secure, leak‑free connection to standard HPLC systems, while the integrated rotaflow stopcock enables effortless control of flow direction and pressure regulation during method development and routine analysis. A sintered disc with zero porosity sits at the base of the column, delivering coarse filtration and efficient gas dispersion, which helps protect downstream components and improve peak shape. The column’s compact dimensions—2 × 2 × 12 inches and a lightweight 4‑ounce profile—make it easy to handle, store, and integrate into existing laboratory setups. Designed with both educational institutions and professional research labs in mind, this column balances cost‑effectiveness with high performance, offering a versatile solution for students learning chromatography fundamentals as well as seasoned scientists conducting complex separations. Its robust construction ensures longevity, reducing the need for frequent replacements and contributing to lower total cost of ownership over time.

Usage

The EISCO 12‑inch chromatography column is suitable for a broad spectrum of laboratory environments, from undergraduate teaching labs to advanced research facilities. In educational settings, the column serves as an ideal hands‑on tool for demonstrating fundamental concepts such as stationary phase interaction, mobile phase selection, and the impact of particle size on resolution. Its user‑friendly rotaflow stopcock simplifies the setup process for students, allowing them to focus on experimental design rather than complex plumbing. In professional research, the column excels in routine analyses of small molecules, peptides, and natural product extracts, delivering reproducible retention times and sharp peak profiles. The sintered disc at the column base provides effective removal of particulates and degassing of solvents, which is especially valuable when working with crude extracts or samples that contain suspended solids. The 19/26 joint ensures compatibility with most HPLC and UHPLC systems, making integration straightforward. Additionally, the column’s borosilicate glass construction tolerates a wide temperature range, enabling its use in both ambient and elevated temperature methods, such as gradient elution protocols that require precise temperature control. Whether the goal is to teach the basics of chromatography, develop a new analytical method, or perform high‑throughput screening, this column offers the flexibility and reliability needed to achieve consistent results.

Why Choose Us

Choosing the EISCO Chromatography Column means selecting a product backed by a legacy of scientific expertise and a commitment to quality that is evident in every detail of its design. The use of borosilicate 3.3 glass not only provides superior chemical inertness but also ensures that the column can endure the rigors of high‑pressure operation without cracking or leaching contaminants into the mobile phase. This durability translates into a longer service life, reducing downtime and replacement costs for laboratories that demand continuous operation. The inclusion of a rotaflow stopcock adds a layer of operational convenience, allowing users to quickly adjust flow rates and reverse flow direction without the need for additional external valves, thereby streamlining method development and troubleshooting. The sintered disc with zero porosity acts as an effective barrier against particulate matter, protecting the column’s internal packing and extending its functional lifespan. EISCO’s rigorous quality control processes, including batch‑to‑batch consistency checks and performance validation against industry standards, guarantee that each column meets the exacting specifications required for high‑resolution separations. Moreover, EISCO provides responsive technical support and after‑sales service, offering guidance on column installation, method optimization, and maintenance best practices. This comprehensive support network ensures that users can maximize the column’s potential and achieve reliable, reproducible results across a variety of analytical challenges.

Key Features

• Durable borosilicate 3.3 glass construction resists chemicals and high pressure for long‑term use.
• Integrated rotaflow stopcock simplifies flow control and reduces the need for external valves.
• Sintered disc with zero porosity provides effective coarse filtration and gas dispersion.
• Standard 19/26 joint ensures compatibility with most HPLC and UHPLC systems.
• Responsive EISCO technical support and after‑sales service help users optimize performance.

FAQ

What types of samples are best suited for this column?

The column works well with a wide range of sample types, including small organic molecules, peptides, and natural product extracts. Its sintered disc effectively removes particulates, making it especially useful for crude extracts or samples that contain suspended solids.

Can the column be used at elevated temperatures?

Yes. The borosilicate 3.3 glass material tolerates elevated temperatures commonly employed in gradient elution methods, allowing precise temperature control without risk of glass deformation or chemical degradation.

How does the rotaflow stopcock improve workflow?

The rotaflow stopcock provides on‑column flow direction control, enabling quick adjustments to flow rate and reversal of flow without disconnecting the system. This reduces setup time and minimizes potential leaks during method development.

Is the column compatible with both HPLC and UHPLC systems?

Absolutely. The 19/26 joint size is a standard fitting for most HPLC and UHPLC instruments, ensuring seamless integration into existing laboratory equipment.

What maintenance is required to keep the column performing optimally?

Regular flushing with appropriate solvents after each run helps prevent buildup of residues. Periodic inspection of the rotaflow stopcock for wear and cleaning of the sintered disc with filtered solvents will extend the column’s service life and maintain consistent separation performance.