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Equipment

EQUIPMENT BELOW WERE FUNDED BY:
NRF - National Research Foundation
DST - Department of Science & Technology
Mintek
CSIR - Council for Scientific and Industrial Research
Rhodes University

 EQUIPMENT CATALOGUE

 Click the following link for pictures of the equipment: Equipment Gallery

1.    X-RAY PHOTOELECTRON SPECTROSCOPY (XPS):
Purpose:  Used to determine the identification and elemental composition of the sample surfaces.
Student Presentation, XPS – August 2016

2.    X-RAY DIFFRACTOMETER SYSTEM (XRD):
Purpose:  Enables size determination and crystal structures determination of compounds.
Student Presentation, XRD – August 2016

3.    ELEMENTAL VARIO ANALYZER (CHNS):
Purpose:  Determines elemental composition of a given compound.

4.    RAMAN/FT-IR SPECTROMETER:
Purpose:  Determines the presence of functional groups present in compounds.  The instrument has both RAMAN and IR capabilities.
Student Presentation, Raman – August 2016

5.    TIME-OF-FLIGHT SECONDARY ION MASS SPECTROMETER (TOF-SIMS):
Purpose: TOF-SIMS is used for the examination of thin films and provides surface composition of these films. It is also used for the study of surface characteristics of nanoparticles. The examination of the surfaces using TOF-SIMS impacts not only on layer interactions in development of sensors and drug delivery agents but in a wide range of disciplines where thin films are employed and where the immobilisation thereof is critical to the success of the technologies being examined or developed, such as electronics, physics, geology and biotechnology.
Student Presentation, TOF-SIMS – August 2016

6.    MALDI-TOF/TOF MASS SPECTROSCOPY (MASS SPEC):
Purpose:  Allows determination of a compound’s mass.
Student Presentation, MASS SPEC – August 2016

7.    ATOMIC FORCE MICROSCOPY (AFM):
Purpose:  Determines surface topography, surface roughness of samples.
Student Presentation, AFM – August 2016

8.    TIME CORRELATED SINGLE PHOTON COUNTING INSTRUMENT (TCSPC) (FluoTime300):
Purpose:  Can be used to determine fluorescence lifetimes (using diode or Xe flash lamps), anisotropy, singlet oxygen phosphorescence and lifetime determinations, and fluorescence emission spectra (using diode lasers or Xe lamps).
Student Presentation, TCSPC, Fluo Time 200 and 300 – August 2016

9.    FLUOTIME 200 TCSPC SYSTEM:
Purpose:  For the determination and acquisition of fluorescence lifetimes using a diode laser.
Student Presentation, TCSPC, Fluo Time 200 and 300 – August 2016

10.    MICROMERITICS AUTOMATIC PHYSISORPTION ANALYZER (using BET theory):
Purpose:  Determination of surface area/porosity of samples.
Student Presentation, BET – August 2016

11.    SIMULTANEOUS THERMOGRAVIMETRIC (TG) DIFFERENTIAL THERMAL ANALYSER (DTA):
Purpose:  Determination of mass losses taking place at different temperatures thermal characteristics of materials.
Student Presentation, TA/DTA – August 2016

12.    EMXPLUS EPR SPECTROMETER:
Purpose:  Spectrometer used for the characterisation of paramagnetic samples including free radicals.
Student Presentation, EPR – August 2016

13.    ELECTROSPINNING SETUP:
Purpose:  Used for the synthesis of nanofibres from polymer solutions.
Student Presentation, Electrospinning – August 2016

14.    SCANNING ELECTROCHEMICAL MICROSCOPY SYSTEM (SECM):
Purpose:  Allows determination of the surface topography and reactivity as well as conductivity of electrode surfaces, before and after surface modification.
Student Presentation, SECM – August 2016

15.    MALVERN ZETASIZER NANO ZS / ZETA POTENTIAL
Purpose: The Zetasizer Nano ZS incorporates three techniques in a single compact unit, and has a range of options and accessories to optimize and simplify the measurement of different sample types.
Student Presentation, Zeta Potential – August 2016

Dynamic Light Scattering is used to measure particle and molecule size. This technique measures the diffusion of particles moving under Brownian motion, and converts this to size and a size distribution using the Stokes-Einstein relationship. Non-Invasive Back Scatter technology (NIBS) is incorporated to give the highest sensitivity simultaneously with the highest size and concentration range.

Laser Doppler Micro-electrophoresis is used to measure zeta potential. An electric field is applied to a solution of molecules or a dispersion of particles, which then move with a velocity related to their zeta potential. This velocity is measured using a patented laser interferometric technique called M3-PALS (Phase analysis Light Scattering). This enables the calculation of electrophoretic mobility, and from this the zeta potential and zeta potential distribution.

Zeta potential is a measure of the magnitude of the electrostatic or charge repulsion/attraction between particles, and is one of the fundamental parameters known to affect stability

Static Light Scattering is used to determine the molecular weight of proteins and polymers. In this technique, the scattering intensity of a number of concentrations of the sample is measured, and used to construct a Debye plot. From this the average molecular weight and second virial coefficient can be calculated, which gives a measure of molecule solubility.

16.    UV-VISIBLE ABSORPTION INSTRUMENT:
Purpose:  Used to obtain ground state absorption spectra of compounds.
Student Presentation, UV-Vis (MCD) – August 2016

17.    UV/VIS/NIR SPECTROMETER
Purpose: Used to obtain ground state absorption spectra of compounds.
UV/VIS/NIR Spectrometer

18.    VARIAN FLUOROSCENCE SPECTROMETER:
Purpose:  Used to determine emission and excitation properties of compounds in the excited singlet state.  

19.    HIGH PERFORMANCE CENTRIFUGE 230V 50HZ:
Purpose:  Allows for the separation various materials (biological/inorganic compounds). Faster centrifuges allows for better separation of materials.

20.    BERGHOF BR-300 HIGH PRESSURE AUTOCLAVE REACTOR:
Purpose:  Enables synthetic reactions under high pressure at set temperatures to be carried out.

21.    AUTOCLAVE:
Purpose:  Used for sterilising equipment/stock solutions for bacterial studies.

22.    CHEMICAL PHOTODEGRADATION SETUP:
Purpose:  Examination of the stability of a compound after light irradiation at specific wavelengths.

23.    SINGLET OXYGEN DETERMINATION (GERMANIUM DETECTOR):
Purpose:  Determination of singlet oxygen produced by compounds.
Singlet Oxygen Determination (Germanium Detector)

24.    Z-SCAN:
Purpose:  Measures the non linear optical (NLO) properties of a sample on exposure to varying intensities of laser light.
Student Presentation, Z-Scan – August 2016

25.    POTENTIONSTATS (X3) AUTOLAB/PRINCETON:
Purpose:  For cyclic voltammetry, square wave voltammetry, electrochemical impedance studies, chronoamperometry.

26.    OVENS:
Purpose:  Used for drying samples.

27.    HIGH PERFORMANCE LIQUID CHROMATOGRAPHY (HPLC):
Purpose:  Enables the separation of different components of a sample.
Student Presentation, HPLC – August 2016

28.    EZ2 ELITE EVAPORATOR
Purpose:  Used for laboratory synthesis. Freeze dryer / high b.p. solvent evaporator.

29. NANOSECOND LASER SPECTROMETER (DYE LASER, ND:YAG, SOLID STATE LASERS):
Purpose:  Photophysics and determination of triplet quantum yields and lifetimes utilizing the EKSPLA and Nd:YAG/Dye lasers.

Last Modified :Mon, 14 Aug 2017 12:48:00 SAST