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SKU: 8510 Category:

Kibron Delta-8 is a unique surface tension platereader for high throughput applications.


The Delta-8 is the only surface tension plate reader in the market. It can determine the CMC (critical micelle concentration) of a surfactant up to one hundred times faster than with conventional tensiometers.

Surface tension is measured by our proprietary DyneProbe which is ultracompact and requires no correction factors, as usually found with rings and plates. DyneProbes works also with cationic surface active agents.

The Delta-8 uses standard size detection plates and conventional dispensing systems. Each well can be charged with individual samples or in the case of CMC determinations with aliquots of solution of different concentration.

Before every run, the DyneProbes are heated using the Kibron DyneClean furnace. The bottom end of each probe is brought into contact onto a (very) hot surface. Upon contact, the tip of the probe is heated to around 600 °C. This ensures consistent and repeatably clean surfaces. Alternatively, or as a complimentary method the probes can be dipped in a washing cassette containing the appropriate cleaning solutions.

A typical CMC determination consists of:

1: Dispensing aliquots of solution:

Liquid handling is done using multichannel handheld pipettes or by a pipetting robot.

2: Probe cleaning:

The DyneProbes are heated to red hot to burn off all contaminants.

3: Immersion and withdrawal:

The DyneProbes are positioned above a row of 8 wells and immersed gently. The force on the plate is measured continuously (400 times/s) and upon withdrawal the surface tension is determined.

4: Analysis:

Up to 96 data points can be acquired in around 3 minutes. These are automatically logged to a PC and the CMC is calculated by our analytical CMCeeker software.


8511 – Delta-8 instrument

8750 – Power supply 100-120V /200-240V AC/12V DC

8751 – Power cord, EU

8752 – Power cord, US/JPN

8753 – Power cord, UK

8720 – Data cable, RS-232

8730 – Tool Set

8620 – DyneClean probe cleaning unit

8650 – Set of DynePlates, 10 pcs

1501 – Set of DyneProbes, 8 pcs – License for software. Please specify.

8810 – User Manual


Download product brochure

Delta 8 tech specs

Temperature range 18–30°C
Measurement volume 50 μl/well
Surface tension range 10-100 mN/m
Resolution 0.01 mN/m
Balance resolution 0.050 μgrams
Precision 0.2 mN/m
Method du Noüy-Padday
Measurement time (96-well plate) 3 minutes
Probe lifetime 100 plates
Cleaning of Dyneprobes DyneClean electric furnace
DyneClean lifetime 400 plates

DynePlate – 96-well plates

Dimensions 127.8 × 85.5 mm (standard footprint)
Volume per well 50 μl
Type Disposable


Supported OS Windows: NT4.0 /2000/XP/7
Min. requirements PII266 MHz, 64 MB memory, CDROM-drive,
SVGA display, one free COM port, 25 MB disk
Communication RS-232

Physical dimensions

Weight 24 kg / 52,911 lbs.
Height 405 mm / 15,945 in.
Width 770 mm / 30,315 in.
Depth 380 mm / 14,961 in.

Power supply

Input 100 –120/200 –240 V, 47– 63 Hz.
Output 12 V DC, 10.8 A.
Power max. 120 W

Safety standards

EMC-Directives IEC61010-1:2001, EN55011:1998, EN61003-3-2:1995, EN61000-3-3:1995, EN61000-4-2:1995, EN61000-4-3:1996, EN61000-4-4:1996, EN1000-4-5:1996, EN61000-4-6:1996, N61000-4-11:1994


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