DPM Vortexer: Principles & Specifications

DPM Vortexer: Principles & Specifications

Rugged and versatile, the Digital Pulse Mixer (DPM) from Glas-Col sets a high standard of usability for various sample preparation processes. We engineered this mid-range vortexer to meet the demands of numerous standard test parameters, drawing on decades of experience in analytical testing and laboratory-based studies. The vortexer can also be configured for custom test conditions, providing highly tailored mixing parameters for proprietary applications.

In this blog post, Glas-Col explores the DPM vortexer in greater depth.

DPM Vortexer: Working Principles

The Digital Pulse Mixer (DPM) operates on a similar principle to entry-level vortexers; using a series of oscillating motor drives beneath a sample loading platform to induce an orbital mixing motion within a sample container/s. This circular motion causes the sample solution to flow around a vertical axis, creating a vortex. One potential drawback of this is that heterogeneous and immiscible samples that have separated, or have a tendency towards separation, in horizontal strata may merely mix in these horizontal planes.

Glas-Col overcomes this issue by integrating an innovative pulse function alongside the vortexer capabilities. The Digital Pulse Mixer interrupts the constant vertical motion induced by the motor drives with a periodic pulse that mixes samples from top-to-bottom. This guarantees optimal sample homogeneity.

DPM Vortexer Specifications

Using microprocessor control technology, the brushless motors of the DPM vortexer can generate mixing speeds of 150 – 1500 revolutions-per-minute (rpm). This broad mixing range is accompanied by a user-selectable pulse profile covering 1 – 100 pulses-per-minute (ppm), with duty cycles of 1 – 99%. Each of these settings is inputted through a simple-to-use, 4-line back-lit liquid crystal display (LCD) screen. The DPM vortexer comes with pre-set runtimes courtesy of an integrated digital timer, which can be coordinated with the pulse frequency for a timed-pulse mode.

The DPM vortexer has a maximum low-speed loading capacity of 8lbs and is compatible with a broad range of container types including racks, reactor blocks, a variety of glassware types, and 96-well plates. Customization options are available to ensure compatibility with various vessel types. This makes it applicable to numerous areas of application, from determining chlorinated and haloacetic acids in drinking water to the dynamic analysis of pesticides in food products.

If you would like a more practical insight into how the DPM vortexer is used in mixing applications, read our previous blog post: Exploring the QuEChERS Method of Laboratory Mixing.

Vortexers from Glas-Col

Glas-Col specialises in the development of high functionality mixing equipment for a broad range of analytical applications. Pricing of the DPM vortexers are available from our website, but you can contact us to request a quote on a custom mixing solution with higher voltages or additional functionalities.