Ion Chromatographer

The Shimadzu Ion Chromatographer is equipped to measure Anions (with electrochemical suppression) and Cations (not suppressed). Both major inorganic ions and organic acids can be measured in aqueous samples.

Specifications

• Cationic column: Shim-pack IC-C4

• Anionic column: Shim-pack IC-SA3

• Detector: Electrical Conductivity

• Samples: 105 samples in 1.5 mL vials + 12 calibration vials. Injection volume 0.1-100 uL

• Temperature control on columns: 4-100°C (full range)

Manufacturer

SHIMADZU Deutschland GmbH

Contact:

Berhane Abrha Asfaw

Dinamic and Electrophoretic Light Scattering

The Malvern Zetasizer is used to measure the size (hydrodynamic diameter), size distribution and the zeta potential of particles in colloidal suspension or molecules.

Specifications

• Light source: He-Ne 632.8 nm gas laser

• Detector: Avalanche photodiode

• Temperature control range: Peltier cell 0 °C to 120 °C

• For particle size, uses a Dynamic Light Scattering (DLS) technique with detection of backscattered light (NIBS), size range 0.3 nm to 10µm diameter

• For Zeta potential, uses an Electrophoretic Light Scattering (ELS) technique with Mixed mode measurement Phase Analysis Light Scattering (M3-PALS) technique, suitable size range 3.8nm to 100 µm

• Optimal concentration range (size-dependent): 0.01-0.5 mg/mL

• Various assortment of cuvettes materials (polystyrene, quartz) for aqueous and non-aqueous solvents, and geometry (large/small sample volume) for size measurements. Folded capillary cells for sequential Zeta Potential and size analysis of aqueous solvents.

• Optical filters to work with fluorescent samples

Model and Manufacturer

Zetasizer Pro Blue (ZSU3200), from Malvern Panalytical Ltd.

Contact

Dr. Andrea Gallo

Particle Charge Detector

The Mütek™ PCD-06 Particle Charge Detector is a laboratory instrument used for quantitative charge determinations of colloidal dissolved matter and particle systems using polyelectrolyte titration. The technique is based on the electric double layer that forms in a suspension containing electric charges, such as charged nanoparticles. The charge of the sample is measured through titration with a polyelectrolyte of the opposite charge. Additionally, the relationship between pH and charge can be identified by automated acid/base titrations to determine the isoelectric point (IEP) of the sample.

Manufacturer

BTG Instruments GmbH

Contact:

Dr. Thanh Lan Nguyen