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Vortex mixer — reference view
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Mixing head

The eccentric rubber contact head transfers motion to a compatible tube.

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Vortex mixer — reference view

Image: Zephyris at English Wikipedia · Source / original · CC BY-SA 3.0

Resized and converted to WebP; original colours retained.

Vortex mixer

Separation & mixing

Vortex mixer

Test-tube mixer · vortex shaker

THE FIRST VIVA QUESTION

What is its use?

Rapidly mixes small samples in compatible closed tubes.

Tap a number to locate its part. Zoom, drag or use full screen to inspect the reference. Models and graduations can differ; check the actual apparatus used in your laboratory.

01 / IDENTIFICATION

How to recognise it.

  1. Rubber cup or mixing head
  2. Compact motor base
  3. Speed or operating controls
Tell the difference.

A vortex mixer agitates the sample; a centrifuge separates components by sedimentation.

02 / NUMBERED PARTS

Point them out.

Choose a part to bring its numbered marker into view.

03 / WORKING PRINCIPLE

The science behind the reading.

Eccentric motion creates circular fluid movement and a vortex inside the vessel.

04 / VIVA PRACTICE

Think first. Then reveal.

Explain your answer aloud before opening it.

01What produces mixing?
SUGGESTED ANSWER

Rapid eccentric movement of the contact head causes fluid circulation.

02Why secure the cap?
SUGGESTED ANSWER

To reduce leakage, splashing and aerosol generation.

03Is vortexing suitable for every sample?
SUGGESTED ANSWER

No. Fragile cells, foaming solutions or method-sensitive samples may require gentler mixing.

04Does it measure concentration?
SUGGESTED ANSWER

No. It prepares a mixed sample; a separate analytical method performs the measurement.

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