Glass Capillary Tubes 0.5mm ID x 100mm – J&K Scientific Pack of 500

Description

Product Overview

The Glass Capillary Tubes 0.5mm ID x 100mm from J&K Scientific are engineered to meet the exacting standards of modern analytical laboratories. Each tube is fabricated from high‑quality borosilicate glass, offering superior chemical resistance and thermal stability that ensure reliable performance across a wide range of aqueous and organic solutions. The inner diameter of 0.5 mm provides a balance between capillary action and ease of handling, while the 100 mm length offers sufficient reach for most thin‑layer chromatography (TLC) spotting and melting point determination tasks. The tubes are supplied in a sturdy resealable container that protects them from contamination and breakage, guaranteeing that every tube arrives clean and ready for immediate use. With a total of 500 tubes per pack, this product delivers both convenience and cost‑effectiveness for high‑throughput laboratory workflows.

Usage

These capillary tubes excel in a variety of laboratory applications. In TLC, the open‑ended design allows precise deposition of sample solutions onto the stationary phase, minimizing sample spread and improving resolution. The consistent inner diameter ensures that each spot contains an identical volume, which is critical for quantitative comparisons between multiple runs. For melting point analysis, the tubes can be sealed by a gentle flame, creating a closed environment that prevents evaporation of volatile compounds while allowing accurate temperature measurement. The tubes are also suitable for micro‑extraction, microscale reactions, and as disposable pipettes for transferring minute liquid volumes in synthetic chemistry or biochemical assays. Because the glass is chemically inert, users can confidently work with acids, bases, solvents, and reagents without risk of leaching or degradation.

Why Choose Us

Choosing J&K Scientific means selecting a partner committed to quality and reliability. Each batch of capillary tubes undergoes rigorous inspection to verify that both ends are perfectly open and free from flat edges, which could otherwise impede fluid flow. The manufacturing process employs precision drawing techniques that guarantee uniform wall thickness and exact inner diameter, reducing variability that can affect experimental outcomes. Our resealable packaging not only protects the tubes during shipping but also provides a convenient storage solution that maintains sterility and prevents breakage. In addition, J&K Scientific offers responsive technical support and a clear return policy, ensuring that any concerns are addressed promptly. By delivering a product that combines durability, precision, and user‑friendly packaging, we help laboratories maintain high standards of reproducibility and efficiency.

Key Features

• High‑quality borosilicate glass provides chemical resistance and thermal stability for diverse lab applications.
• Consistent 0.5 mm inner diameter ensures uniform sample volumes, improving reproducibility in TLC and melting point tests.
• Open‑ended design with smooth edges enables easy fluid uptake and precise spotting without clogging.
• Packaged in a resealable, impact‑resistant tube that keeps each capillary clean and undamaged until use.
• Responsive customer support and clear warranty policy give users confidence and peace of mind.

FAQ

Can these capillary tubes be used with both aqueous and organic solvents?

Yes. The borosilicate glass construction is chemically inert, meaning it does not react with most acids, bases, or organic solvents. This makes the tubes suitable for a wide range of sample types, from water‑based solutions to non‑polar organic mixtures, without risk of leaching or degradation.

How should I seal the ends of the tubes for melting point analysis?

To create a sealed environment, gently flame the open end of the tube using a Bunsen burner or micro‑torch. The glass will soften and close, trapping the sample inside. Allow the sealed end to cool before handling to avoid burns, and ensure the flame is applied evenly to prevent uneven glass thickness.

What is the best way to store the capillary tubes to maintain their cleanliness?

The resealable container provided with the product is designed to protect the tubes from dust, moisture, and mechanical damage. Keep the container tightly closed when not in use, and store it in a cool, dry place away from direct sunlight. If additional sterility is required, the tubes can be autoclaved before first use.

Are the tubes compatible with automated spotting instruments?

While the tubes are primarily intended for manual spotting, their uniform dimensions make them compatible with many automated TLC spotters that accept standard capillary tubes. Verify the instrument’s specifications for tube diameter and length to ensure a proper fit, and consider using a short adapter if necessary.

What should I do if I receive a damaged or defective tube?

Contact J&K Scientific customer service within 30 days of receipt, providing the order number and a description of the issue. We will arrange a replacement or refund according to our warranty policy, ensuring minimal disruption to your laboratory workflow.

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