The Flow Option extends the measurement capabilities of the Acorn Area to enable the user to circulate sample from an external container to the measuring head where the sample is measured and then returned to the sample beaker. AreaQuant 2.0 software controls a peristaltic pump, starting and stopping the flow during measurement. Alternatively the flow may also be imposed during the measurement, (See for example Applications Note 135). The sample temperature in the external beaker may be regulated using the Peltier regulated Controller shown in the picture below. An external stirrer may be used to keep particles in suspension while they reside inside the beaker waiting to be measured. The Flow enables the user to measure the influence of additives such as surfactants and dispersants on the particle-liquid interface of nanoparticle dispersions. Surfactants are among the most expensive components in a nanoparticulate dispersion, and optimization of their concentration is important in maximizing formulation profitability. The presence of surface active agents on the nanoparticle surface markedly alters the relaxation time of the dispersion until complete coverage of the particle surface area is achieved. Thereafter, additional surfactant does not change the relaxation time significantly (see for example, Applications note 107). The Acorn Flow is also invaluable in monitoring other changes at the particle liquid interface, such as flocculation. The Acorn Flow is an ideal tool for use in formulation development in virtually any industry, yet is simple enough for routine use in a quality laboratory.
The Acorn Flow temperature controller is shown below. It features a Peltier controlled environment which regulates the sample temperature via the front panel. The sample temperature is set from the front panel membrane keypad.
Measurements with the Flow Option are simple and easy. Suspensions and emulsions can be measured non-invasively, without dilution. Pour the sample dispersion into the Acorn Flow Temperature Controller beaker and circulate the sample into the Flow Option using the peristaltic pump. The test sequence is initiated with a single key stroke and within minutes, the proprietary AreaQuant 2.0 software algorithm reports the appropriate parameters.
Flow Option Specifications:
Maximum Fluid Pressure: 4 bars
Interface: PC via USB
Voltage: 100-240 VAC 50/60 Hz
Power Consumption: 120 Watts
LxWxH: 270x360x140 mm
Wt.: 7 kg
Acorn Flow Temperature Controller Specifications:
Temperature range: 10-75 Celsius
Voltage: 100-240 VAC, 50/60 Hz, 1.5A
Setting Resolution: 0.1 Celsius
Power Consumption: 60 Watts
LxWxH: 240x260x165 mm Wt: 3.5 kg
For more information, please contact us.