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Equipment
Scientific and Experimental Facilities
Еquipment for determining the molecular mass characteristics of polymers
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Analytical ultracentrifuge ProteomeLab XL-I Beckman Coulter configured with a scanning UV/Vis detection system and Rayleigh Interference Optics
| The ProteomeLab XL-I is configured with two detection systems: (i) a scanning UV/Vis detector that provides sensitivity for low-concentration work and selectivity for optimizing detection based on the sample's maximum absorbance and (ii) Rayleigh Interference Optics system which provides the capability to measure the change in refractive index resulting from changes in sample concentration. The instrument can collect data from both detection systems sequentially to provide the broadest spectrum of data for macromolecular characterization in solution. The ProteomeLab XL-I functions over a wide range of concentration, temperature, ionic strength and pH and allows examination of a wide selection of samples. The operating methodology measures molecular weights and sample heterogeneity, stoichiometry and self-associating systems. It determines species parameters such as sedimentation and diffusion coefficients. Because the ProteomeLab XL-I's measurements are based on the first principles of thermodynamics and hydrodynamics, no standards or calibrations are required. The measurement requires volumes as little as 15 µL to 450 µL of sample and reference solutions that are injected into opposing positions in the cell assembly. Two rotors (4- and 8 hole rotors) are available which allows up to 7 different sample/reference pairs can be studied in a single run, with each having a different set of solute/solvent conditions (pH, ionic strength, concentration). Your sample can be retrieved for additional analysis.Acknowledgement for the financial support of the National Science Fund under contract DО 02-82/2008 (project CVP-01/0106 within the frame of the call “Centers of Excellence – 2008”. |
Universal modular rheometer RheoStress 600, Thermo Haake
The HAAKE RheoStress 600 high-end rheometer performs all types of measurements in rotation and oscillation modes. Fully modular, it can be quickly adapted to suit a wide range of requirements for rheological analysis of polymer solutions, pastes and hydrogels.
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UV-VIS spectrometer DU 800(Beckman Coulter)
 | The DU 800 Spectrophotometer operates in the wavelength range of 190 to 1100 nm and has a bandwidth of <= 1.8 nm. The focused micro-beam design provides a wide linear range and other specific benefits for small volumes and precious samples. Acknowledgement for the financial support of the National Science Fund under contract DО 02-82/2008 (project CVP-01/0106 within the frame of the call “Centers of Excellence – 2008”. |
IRAffinity-1 “Shimadzu” Fourier Transform Infrared (FTIR) spectrophotometer with MIRacle Attenuated Total Reflectance Attachment
| The IRAffinity-1 offers the highest signal-to-noise ratio (sensitivity) in its class at 30 000:1, with a maximum resolution of 0.5 cm-1 (according to Shimadzu's investigation in January 2008). The unit achieves this level of sensitivity by using a high-energy ceramic light source; temperature-controlled, high-sensitivity DLATGS detector; and high-throughput optical elements. Also, the IRAffinity-1 includes optimized electrical and optical systems to minimize noise levels. IRsolution software, standard in the IRAffinity-1, performs data processing and analysis. Acknowledgement for the financial support of the National Science Fund under contract DО 02-82/2008 (project CVP-01/0106 within the frame of the call “Centers of Excellence – 2008”. |  |
Аpparatus for determining the limiting oxygen index Modul FTA Instrument, Stanton Redcroft
 | The limiting oxygen index LOI test (ASTM D2863) is used to determine the minimum concentration of oxygen in an oxygen/nitrogen mixture that will support a flaming burn in a plastic or composite specimen. It requires relatively small specimens and has the advantage of producing a single numerical value which is an indication of relative flammability. For plastics, the test has been shown to have good precision and reproducibility. |
Microwave reactor RotoSYNTH (Milestone s.r.l.), Rotative Solid-Phase Microwave Reactor with ATC-FO (Milestone)
| The Milestone innovative RotoSYNTH combines all the advantages of microwave-enhanced synthesis, with the unique capability of physically rotating the reaction vessel, to achieve very homogenous bulk heating of heterogeneous reaction mixtures. It offers an extremely high flexibility of operation in open vessel, closed vessel or under vacuum, with full control of all reaction parameters (time, microwave power, heating and cooling rate, temperature, pressure, and vacuum), in a very safe environment. Acknowledgement for the financial support of the National Science Fund under contract DО 02-82/2008 (project CVP-01/0106 within the frame of the call “Centers of Excellence – 2008”. |  |
co-owned Bruker Avance II+ 600 NMR spectrometer installed at the Institute of Organic Chemistry, The instrument is purchased with the financial support from the Ministry of Education and Science in the framework of the program “Promotion of the Research Potential through Unique Scientific Equipment”; www.orgchm.bas.bg/~nmr/Equipment.html
fluorescent spectrometer LS-3 Perkin Elmer
Differential scanning calorimeter DSC-7, Perkin Elmer
Automatic viscometer AVS-310, Schott Gerate
Gas chromatograph Carlo Erba
Optical microscope Leica DMLP