A glass spotting capillary is a thin, cylindrical, or micro-tapered glass tube characterized by its slender structure. With diameters often below the millimeter scale and lengths extending up to tens of centimeters, these tubes feature thin walls, making them ideal for various laboratory operations. Common uses include liquid distribution, mixing, transfer, and precise sampling.

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Uses of Glass Spotting Capillary Tubes

Liquid Distribution

Glass spotting capillaries enable precise quantitative distribution of liquids in laboratories, ensuring controlled and efficient handling of small liquid volumes.

Liquid Mixing

These capillary tubes are effective in mixing two liquids by repeatedly drawing and discharging them, ensuring uniform blending.

Liquid Transfer

Glass spotting capillaries are widely used for transferring liquids between containers with minimal loss, ensuring efficiency in laboratory workflows.

Liquid Sampling

For precise quantitative sampling, glass spotting capillaries allow accurate extraction of the required liquid volumes during laboratory processes.


Application Scenarios in Laboratories

Chemical Experiments

In chemical laboratories, glass spotting capillaries are indispensable for operations requiring precise handling of solutions, such as separation, extraction, and concentration under controlled conditions.

Biological Experiments

In biological studies, glass spotting capillaries facilitate accurate operations like sample separation, extraction, and measurement, contributing to experimental reliability.

Medical Testing

For medical testing, where precise sampling or distribution of liquids is critical, glass spotting capillaries serve as a reliable tool for achieving high accuracy.


Glass spotting capillaries are essential tools in laboratory settings, playing a vital role in precise liquid distribution, mixing, transfer, and sampling. By integrating these tools into laboratory workflows, researchers can enhance experimental accuracy and minimize reagent waste, ultimately improving the efficiency and reliability of laboratory operations.


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By 向阳 翟

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