Glass Capillary Tubes 75mm 1.1mm ID/1.5mm OD and 200 Pack by Kejiaxin

Description

Product Overview

Our 200-piece glass capillary tube set is engineered for laboratory professionals who demand accuracy and reliability. Each tube measures 75 mm in length, providing a convenient size for a wide range of applications, from micro‑injection to precise sample transfer. The inner diameter of 1.1 mm and outer diameter of 1.5 mm create a smooth, consistent channel that minimizes capillary action variance, ensuring repeatable results across experiments.

The tubes are fabricated from high‑purity borosilicate glass, a material renowned for its chemical resistance, thermal stability, and mechanical strength. This composition allows the tubes to withstand repeated heating cycles, exposure to aggressive solvents, and the rigors of daily laboratory use without cracking or deforming. The transparent nature of the glass enables easy visual inspection of fluid movement, helping technicians monitor flow rates and detect air bubbles instantly.

Precision manufacturing processes guarantee uniform wall thickness and exact dimensional tolerances for every tube in the pack. This uniformity translates to predictable fluid dynamics, reducing the need for calibration and saving valuable time during method development. The tubes are also pre‑cleaned and sterilized, ready for immediate deployment in sterile environments such as cell culture, microbiology, and analytical chemistry labs.

Packaging is designed for convenience and protection. The 200 tubes are organized in a compact, resealable container that fits easily into standard laboratory storage cabinets. The container dimensions of 4.96 x 3.82 x 1.46 inches and lightweight design (1.76 ounces) make it simple to transport between workstations or field sites while keeping the glass components safe from breakage.

Usage

These capillary tubes excel in a variety of laboratory settings. In analytical chemistry, they are ideal for delivering precise volumes of reagents to chromatography columns, ensuring consistent peak shapes and retention times. In molecular biology, researchers use them to transfer minute quantities of DNA, RNA, or enzyme solutions between micro‑tubes, where accuracy is critical for downstream reactions such as PCR or sequencing.

For cell culture applications, the tubes facilitate gentle handling of cell suspensions, reducing shear stress and preserving cell viability. Their smooth interior surface prevents cell adhesion, making them perfect for transferring delicate primary cells or stem cell cultures. In microbiology, the tubes enable accurate inoculation of agar plates and broth cultures, supporting reproducible colony counts and growth assessments.

Field scientists working in remote locations also benefit from the lightweight, durable design. The tubes can be used for on‑site sample collection of water, soil extracts, or biological fluids, then sealed and transported back to the laboratory for detailed analysis. Their resistance to temperature fluctuations ensures sample integrity even when ambient conditions vary widely.

Why Choose Us

Choosing our glass capillary tubes means selecting a product backed by rigorous quality control and a commitment to scientific excellence. Each batch undergoes comprehensive inspection for dimensional accuracy, surface integrity, and optical clarity. Defects such as micro‑cracks or inclusions are identified and removed before packaging, guaranteeing that every tube meets the high standards expected by professional laboratories.

Our brand, Kejiaxin, has a long history of supplying reliable laboratory glassware to research institutions worldwide. We invest in state‑of‑the‑art manufacturing equipment and employ experienced technicians who understand the nuanced requirements of scientific research. This expertise translates into a product that consistently delivers the performance needed for critical experiments.

Customer support is an integral part of our service offering. Should you encounter any issues or have questions about optimal usage, our dedicated technical team is available to provide guidance, troubleshooting assistance, and recommendations for best practices. We also offer a straightforward return policy for any defective items, reinforcing our confidence in product quality.

Key Features

• High‑purity borosilicate glass ensures chemical resistance and thermal stability for demanding lab environments.
• Exact 75 mm length with 1.1 mm ID and 1.5 mm OD provides consistent fluid flow and accurate volume transfer.
• Pre‑cleaned and sterilized tubes reduce preparation time and maintain sample integrity.
• Compact, resealable packaging protects 200 tubes and simplifies inventory management.
• Responsive customer support and hassle‑free returns guarantee confidence in every purchase.

FAQ

What types of liquids can be transferred with these capillary tubes?

The tubes are compatible with most aqueous solutions, organic solvents, and biological fluids. Their borosilicate composition resists corrosion from acids, bases, and many organic compounds, making them suitable for a broad spectrum of laboratory reagents.

Can the tubes be autoclaved for sterilization?

Yes. The high‑temperature tolerance of borosilicate glass allows the tubes to be autoclaved at standard conditions (121 °C for 15 minutes) without deformation or loss of dimensional accuracy.

How do I ensure accurate volume delivery when using these tubes?

For precise volume delivery, use a calibrated capillary tube holder or a micro‑pipette designed for capillary tubes. The uniform inner diameter minimizes variability, but consistent technique—such as maintaining a steady draw speed and avoiding air bubbles—further enhances accuracy.

Are the tubes suitable for use in high‑precision analytical instruments?

Absolutely. Their optical clarity and uniform dimensions make them ideal for applications like gas chromatography, liquid chromatography, and spectroscopic sample introduction, where consistent path length and minimal contamination are essential.

What is the warranty or guarantee on this product?

We provide a one‑year limited warranty covering manufacturing defects. If any tube is found to be defective, simply contact our support team for a replacement or refund, ensuring uninterrupted research progress.