Why Dissolved Gases and Bubbles Disrupt HPLC Performance
Bubble interference is one of the most persistent challenges facing laboratories and instrument manufacturers that rely on High-Performance Liquid Chromatography (HPLC). Dissolved oxygen and other gases trapped in mobile-phase solvents can form microbubbles within pump chambers, detector flow cells, and tubing paths. These bubbles create baseline noise, cause irregular flow delivery, and in some cases trigger pump cavitation that compromises reproducibility. For medical diagnostics and life science instrumentation, where precision and repeatability are non-negotiable, solving bubble interference at its source—dissolved gas in the liquid itself—is essential rather than optional.
Effective degassing requires more than a single fix. Different flow rates, chamber volumes, and system architectures call for different degassing technologies. This is where Aiiboom, operating under the full corporate name AIIBOOM TECHNOLOGY CO., LTD, has built a dedicated product line specifically engineered to remove air, oxygen, and dissolved gases, stabilizing fluid systems and reducing bubble-related interference across a range of flow conditions.
Engineering Approaches to HPLC Degassing
Rather than offering a single generic degasser, Aiiboom's degassing portfolio addresses bubble interference through multiple complementary technologies, each suited to specific flow ranges and integration needs.
Teflon AF Tubing Degasser for Low-Flow Precision Paths
For low-flow analytical and life-science fluid paths where dissolved oxygen and bubble interference are most disruptive, the Teflon AF Tubing Degasser uses a vacuum chamber built around Teflon AF membrane tubing. Its efficiency has been quantified directly against test conditions: 84.0% removal efficiency at 0.5 mL/min and -95 kPa, declining to 29.0% at 5.0 mL/min and -80 kPa, using DI water at 25°C. The product code structure (for example, DP285S001) reflects configurable internal volumes of 285, 400, 480, or 670 µL, single or dual vacuum ports, and a choice of PEEK, PPS, or SUS316L connection block materials—allowing engineers to match chemical compatibility and volume requirements to their specific flow path.
Membrane and Silicone Tubing Degassers for Compact Integration
Where space is constrained but dissolved-gas removal is still required, the Membrane Degasser (product code structure DF160D001) offers a 160 µL internal volume with dual vacuum ports and a PEEK connection block, suited to low-volume fluid streams. Complementing this, the Silicone Tubing Degasser uses a flexible silicone chamber—referenced as the "S" chamber type—that relies on silicone membrane permeability for gas removal and is compatible with modular degasser configurations.
Degasser Module: Full Subsystem Integration for HPLC
For instrument manufacturers who need a complete degassing subsystem rather than discrete components, the Degasser Module combines a vacuum source, control unit, and degassing chambers into one compact, airtight unit. Its product code structure (DG6-285P001) allows configuration from 1 to 6 chambers, internal volumes of 285, 400, or 480 µL, a choice of Teflon AF, Membrane, or Silicone chamber types, and PEEK or PPS connection blocks. Notably, this module is explicitly positioned as a degasser for HPLC systems, with a low-noise design and stable pressure differential intended to support continuous gas removal without introducing additional noise into chromatographic baselines.
Column Degasser for High-Flow Deoxygenation
Not all bubble-interference problems occur at microliter flow rates. High-flow analysis applications require dissolved-gas removal without limiting throughput. The Column Degasser is rated for deoxygenation performance up to 1000 mL/min, with internal volumes of 100 mL, 200 mL, or 400 mL, single or dual vacuum ports, and PP or PVC connection materials. Under test conditions of 25°C and -85 kPa, it achieves 60% efficiency at 200 mL/min and 30% efficiency at 1000 mL/min—figures that allow engineers to calculate expected gas-removal performance before specifying the component into a larger system.
Debubbler for Inline Bubble Management
In some instrument designs, degassing the entire fluid volume is impractical or unnecessary, and the more immediate concern is removing bubbles already present in a line. The Debubbler (model DBH2-2-A01 or similar configurations) provides a straightforward inline solution with a 2 mL internal volume, dual membrane design, and ABS connection block, intended for easy installation in general fluid-line bubble management scenarios.
The cause is the interference of radiation with different wavelengths in the bubble.
A little dehydration makes bubble solutions stronger, as it is less diluted.
When a soap bubble bursts, the thin film of soap becomes very thin, causing interference of light waves. This interference results in destructive interference for most wavelengths, leading to the perceived black color.
This works through interference patterns. The wall of the soap bubble is very thin - on the order of the wavelength of the light. This makes the interference patterns noticeable. The interference is caused between the light that is reflected from the front part of the bubble wall, and from the light reflected from the back part of the bubble wall.
Soap bubbles appear colored due to thin film interference. When light hits the soap bubble, some of it is reflected while the rest enters the film and is reflected back out. This reflected light interferes with the incoming light, creating patterns of constructive and destructive interference that produce colors.
A soap bubble shows beautiful colors when illuminated by white light due to interference of light waves. The thin film of soap in the bubble reflects light waves at different angles, causing some waves to interfere constructively and others to interfere destructively. This interference results in the different colors observed on the bubble's surface.
the rainbow effect of the colorful swirls in soapy bubbles.
I don't think bubbles actually have a color, and I don't think you can color them, but they are iridescent, like oil spots on water in parking lots. They have a rainbowish sheen, probably because they contain oil, or something oily.
A potential cause of a bubble in a wall is trapped air or moisture during the painting process. To fix this issue, the bubble can be punctured with a small hole, the area can be smoothed out, and the wall can be repainted.
The colors in soap bubbles are produced by the interference and reflection of light waves as they pass through the thin film of soap. The film thickness determines which colors are visible through interference.
The phenomenon is called iridescence. It happens because in a thin film (like a soap bubble, or gasoline on water) there can be constructive interference in light waves as they bounce between the two surfaces of the film. The exact color depends very sensitively on the thickness of the film, which is why the colors seem to swirl around as minor variations in the thickness move through the substance.
The colors of a soap bubble are created by interference of light waves reflecting off the front and back surfaces of the thin soap film. This interference causes certain wavelengths of light to amplify, creating the vibrant colors we see. The colors change as the film thickness varies, resulting in a rainbow effect.