We offer analytical services for various applications. Services can include method development, sample preparation, data acquisition and analysis. A selection of analytical services is also offered to the general public.
Thermal analysis & NMR
Thermal Analysis lab
Thermal Analysis is a group of techniques in which a physical property of a substance is measured as a function of temperature. The Thermal Analysis lab at the Institute for Drug Research is equipped with 2 instruments:
- Differential Scanning Calorimeter -METTLER TOLEDO DSC1
- Thermogravimetric Analysis- METTLER TOLEDO TGA/DSC1
Instruments are accessible to staff of the Faculty of Medicine who has been trained on their use and has passed a practical and theoretical exam.
Thermal analysis services is available to all inside and outside users, both academic and industrial.
The lab is located at The Faculty of Medicine Ein Karem, School of Pharmacy building, (-1) floor, room 27.
Thermal Analysis Lab Instrumentation:
Differential Scanning Calorimeter (DSC)
In DSC, the heat flow in and out of a sample and a reference material is measured as a function of temperature as the sample is heated, cooled or held isothermally at constant temperature. The measurement signal is the energy absorbed or released by the sample.
METTLER TOLEDO DSC 1 is used in our thermal analysis laboratories to determine Physical properties and processes like:
- Crystallization
- Glass transition
- Melting point
- Thermal stability
- Solid-solid transitions and polymorphism
- Pyrolysis
- Chemical reactions such as thermal decomposition or polymerization
- Comparison of different batches of product
METTLER TOLEDO DSC1 Temperature Range: -150°C – 700°C.
Thermogravimetric Analysis (TGA)
TGA is an experimental technique in which the mass of a sample is measured as a function of sample temperature or as a function of the time in isothermal experiments. The results of a TGA measurement are display as a curve of mass against temperature or time.
METTLER TOLEDO TGA/DSC1 instrument that is used in our thermal analysis laboratories, simultaneously measures heat flow in addition to weight change.
The effects that can cause a sample to lose mass include:
- Evaporation of volatile constituents
- Loss of water of crystallization
- Oxidation of metals
- Oxidative decomposition of organic substances
- Thermal decomposition with the formation of gaseous products.
METTLER TOLEDO TGA/DSC1 Temperature Range: RT–1000°C.
Thermal Analysis Services
Thermal Analysis service is provided on DSC and TGA both for the Faculty of Medicine staff (Internal Services) as well as for external users, academic and industrial (External Services).
Samples may be submitted for measuring only or measuring and data analysis. The service offers specialist support and advice in thermal analysis includes:
- Sample preparation
- Performing the right measurements
- Interpretation of DSC curve
For price quote please contact:
Dr. Aviva Friedman-Ezra, Tel: 87030,
E-mail: aviva.friedman-ezra@mail.huji.ac.il
Nuclear Magnetic Resonance (NMR) Unit
Lab instrumentation
Bruker Fourier 80
Varian Mercury 300 MHz NMR
Bruker Avance III 500 MHz NMR
Nuclear Magnetic Resonance (NMR) Unit
Home
The NMR lab of the Institute for Drug Research is equipped with three NMR spectrometers including a benchtop system Bruker Fourier 80, a 300 MHz instrument and a 500 MHz instrument. Our primary goal is to support the research at the Faculty of Medicine, by providing a variety of NMR applications such as
- Chemical structure analysis for detailed structural characterization for small molecules
- Quantification of mixture components
- Kinetic studies of reaction mixtures
- Characterization of polymers
The NMR lab instruments are accessible to staff and students of the Faculty of Medicine who have been trained on their use and have passed a practical and theoretical exam.
NMR services are available to all inside and outside users, both academic and industrial.
The NMR lab (NMR300, NMR500) is located at the Faculty of Medicine, building 4, (-2) floor, room 5.
Bruker Fourier 80 is located at the Faculty of Medicine, School of Pharmacy building, 4th floor, Room 412
Lab Instrumentation:
Bruker Fourier 80
- Compact benchtop system.
- Cryogen-free permanent magnet (no liquid nitrogen or liquid helium required).
- Easy-to-use, minimal training is required to perform a measurements.
- Allowing students' hands-on training.
- Standard 5mm diameter, 7’’ NMR tubes.
- Deuterated solvents are not necessary
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Suitable for:
- Assess the purity of samples
- Reaction monitoring
- Polymers characterization (determination of the molecular weight or copolymer compositions)
- Chemistry education
Varian Mercury 300 MHz NMR
Is used primarily for routine identification and standard work with small organic molecules
- Equipped with a 5mm auto-switchable 4-nuclei (1H/19F/13C/31P) probe
- Suitable for preforming routine one- and two-dimensional experiments, such as : APT, DEPT, 1D-NOESY, 1D-TOCSY, J-RESOLVE, COSY, NOESY, TOCSY, HSQC, HMBC, etc.
- Instrument is accessible to staff of the Faculty of Medicine and Hadassah Medical Center who has been trained on their use and has passed a practical and theoretical exam.
Bruker Avance III 500MHz NMR.
- Equipped with an auto-tuning multi-nuclear direct observation probe.
- Has variable temperature (20°C to 80 °C)
- Suitable for preforming a wide range of advanced 1D and 2D proton and carbon experiments such as APT, DEPT, 1D_NOESY, 1D_TOCSY, J-RESOLVE, COSY, NOESY, TOCSY, HSQC, HMBC,T1, T2, DOSY etc
- 31P, 19F, 11B, 2H 195Pt, 15N are also configured.
- The spectrometer is running Bruker TopSpin software.
- Instruments are accessible to staff of the Faculty of Medicine and Hadassah Medical Center, who have been trained on their use and have passed a practical and theoretical exam.
Service
A NMR service is provided on 300 MHz NMR and 500 MHz NMR both for the Faculty of Medicine staff (Internal NMR Services) as well as for external users, academic and industrial (External NMR Services).
- Internal NMR service
The Internal NMR service is available for all research at the Faculty of Medicine. Samples may be submitted for data collection only or data collection and data analysis. The NMR service includes specialist support and advice such as:
- Guidance in the choice of experiment.
- Help in setting up new experiments.
- Quantitative and qualitative data acquisition and data analysis on the composition of a sample.
- Opportunity to undertake collaborative research projects requiring NMR expertise.
External NMR Service
The NMR lab also offers an external NMR service for outside users, both academic and industrial. A full range of NMR experiments are offered on NMR 500 MHz, including advanced one- and two-dimensional experiments. We also offer advice on experiment selection, data interpretation and reports.
For price quote please contact - Dr. Aviva Friedman-Ezra, Tel: 87030,
E-mail: aviva.friedman-ezra@mail.huji.ac.il
SAFETY
- People with medical implants (such as cardiac implants pacemakers, aneurysm clips, surgical clips or prostheses) should check with us before entering the NMR room.
- All magnetic objects should be kept outside the NMR magnet room.
- Keep electronics, credit cards and magnetic storage media outside of the NMR magnet room.
Contact Us
Dr. Aviva Friedman-Ezra
Faculty of Medicine ,School of Pharmacy Building
Ein Karem Campus
The Hebrew University
Tel: +972-2-6757030
Fax: +972-2-6757076