About Us

News and Events

Research -
Publications by
Area

Publications

Co-operation

Teaching

Staff

Equipment

Methods

Contacts

Location

in-memoriam of Prof. Kralchevsky

COST MPNS Action MP1106

CM1101-2012

EUFOAM 2010

COST Action D43

COST Action P21

Equipment:

List of equipments available in the Department of Chemical Engineering:

1. Commercial instruments

2. Home made setups

Commercial instruments:

• Zetasizer Nano ZS (Malvern Instruments, UK) – light scattering system for size, zeta potential and molecular weight measurement of particles, emulsion droplets and macromolecules

• Malvern 4700C (Malvern Instruments, UK) – goniometric light scattering system for dynamic and static light scattering with a solid state laser (532 nm)

• ЕКА (Anton Paar, Austria) – electrokinetic analyzer for determination of the zeta potential on macroscopic solid surfaces, equipped with rectangular and cylindrical cells and a remote titrator unit.

• Minispec mq 20 low resolution NMR 20 MHz (Bruker, Germany)

• Gas chromatograph Trace-GC (ThermoQuest, Italy) – GC analytical system for analysis of fats and oils, their derivatives, and other volatile compounds.

• HPLC Prominence LC-20AD (Shimadzu Corporation, Japan) – Versatile HPLC analytical system, currently used for analysis of biosurfactants - saponins, bile acids and phospholipids.

• pH-STAT Titrando 842 (Metrohm, Switzerland) – Automated titrator, capable of maintaining constant pH or varying the pH in a pre-programmed way, by titrating with acid or base.

• Rheometer Gemini (Bohlin Instruments, Malvern, UK)

• Brookfield Programmable Viscometer DV-II+Pro (Brookfield, USA)

• Bulk viscometer Brookfield RHEOSET (Brookfield, USA)

• K100 and K10ST tensiometers (Kruess GmbH, Germany)

• BP2 Bubble Pressure Tensiometer (Kruess GmbH, Germany)

• DSA100R (Kruess GmbH, Germany) – Drop Shape Analysis Systems with EDM/ODM module for interfacial rheology

• DSA30 (Kruess GmbH, Germany) - Drop Shape Analysis System for surface and interfacial tension and contact angle measurements; equipped with thermostated cell TC40 and with EDM/ODM module for interfacial rheology characterization.

• Easydrop, DSA10 (Kruess GmbH, Germany) - Drop Shape Analysis Systems for contact angles measurements, surface energy determination of solid surfaces, and measurements of surface and interfacial tensions.

• Langmuir trough 302LL/D1 (Nima Technology Ltd., UK)

• Microscopy Langmuir trough (KSV, Finland) - with a window in the trough bottom, allowing optical observations in transmitted light.

• Quartz Crystal Microbalance Z500 (KSV, Finland)

• Photometric and null type ellipsometer with solid-state laser Compass 215M (Coherent, USA) and active antivibration table TS 150 (HWL Scientific instruments, Germany)

• Ellipsometer EL X-04 (DRE GmbH, Germany) - Ultra High Precision Transmission ellipsometer.

• Magic Lab dispersing and mixing system (IKA Labortechnik, Germany).

• Rotor-stator homogenizer Ultra-Turrax T25 (Janke & Kunkel, UK)

• Ultrasonic Pulse Homogenizers SKL650 - IIDN (650 W) and SKL1500-IIDN (1500 W) (Ningbo haishu sklon develop co., Ltd, China) with built-in amplitude and temperature control.

• Dynamic Foam Analyzer DFA, (Kruess GmbH, Germany) – automated foam generation and analysis of the foam formation, stability and decay.

• Membrane emulsification apparatus (Microkit) with Shiratsu Porous Glass (SPG) membranes (SPG Technology, Japan)

• Research photometer (Ealing, UK)

• UV/VIS spectrometer UNICAM 5625 (Unikam, UK)

• AXIOPLAN FL (Zeiss, Germany) – research optical microscope working in reflected and transmitted light; with fluorescence, phase contrast and zoom

• OPTIPHOT 2 (Nikon, Japan) – research microscope in reflected and transmitted light, for bright and dark field observation

• JENAVERT (Carl Zeiss Jena, Germany) - reflected light, bright field microscope

• Axiovert 40 MAT (Carl Zeiss, Germany) – inverted research optical microscope, working in reflected and transmitted light.

• EPIVAL INTERPHACO (Carl Zeiss Jena, Germany) – inverted optical microscope

• STUDAR M (PZO, Poland) – microscope in transmitted light

• Stereomicroscope Stemi 2000C (Zeiss, Germany) – binocular lens

• Stereomicroscope CITOVAL 2 (Carl Zeiss Jena, Germany) – binocular lens

• Gel electrophoresis setup – Mini-PROTEAN Tetra cell (BioRad company, USA)

• Video-systems (cameras, timers, recorders, monitors)

Home made setups (incl. original methods and procedures, developed in LCPE or DCE):

• Setups for thin liquid film formation and observation:

1. ─ capillary cells for studying horizontal foam and emulsion films;

2. ─ modified capillary cell allowing exchange of the film-forming liquid;

3. ─ porous cells for horizontal foam and emulsion films and Π(h) isotherms;

4. ─ circular, rectangular, three and four leg-cells for studying vertical foam films;

5. ─ high pressure thin film balance for studying foam films.

• Film trapping technique for determination of contact angles of micron-sized particles, and measurement of the critical pressure for entry.

• Foam generation and characterization (stability, liquid drainage, coarsening, etc.):

1. ─ Ross-Miles test;

2. ─ Bickerman test;

3. ─ Bartsch test;

4. ─ Shake test.

5. ─ Perforated disk beating method.

• Method for measuring the rate of oil solubilization in solutions

• Squeeze flow rheometer (for characterization of complex fluids)

• Narrow gap homogenizer (for emulsification in turbulent flow)

• Thin layer chromatography (for characterization of fat hydrolysis by enzymes)