Dr. Rachel Edrei

 

Dr. Rachel Edrei
Chemical and Surface Analysis Lab

The chemical and surface analysis lab offers a wide range of characterization techniques together with highly skilled expert personnel. The key feature of the lab is the availability of skilled, devoted and highly motivated technical staff members who keep the instruments well-maintained and assist students and researchers with training, sample preparation and data interpretation. Our facility services all Technion researchers, other research institutes (universities and colleges) as well as the industry.

Laboratory equipment

Safety-English – Chemical and Surface Analysis Lab

Schedule a system

 

    Safety Guidelines for Students in Chemistry Laboratories

    I hereby confirm that I have read the Safety Guidelines for Students in the Physical Chemistry Laboratories”, which were given to me at the beginning of the course, and certify that: I affirm that I understand that guidelines and, in addition, that I have been instructed on proper work in the chemistry laboratories. I affirm that I know and understand the safety guidelines and I accept responsibility for acting in accordance with these guidelines and any further guidelines I will receive, either printed or verbally, by lab employees. I affirm that I will use only the equipment I received instruction on and I accept follow these instructions and any instructions given to me either printed or verbally, by lab employees. I am aware that there are various hazards in working in a chemical lab, which can be caused by my own actions, the actions of my peers and lab employees, or by exposure to chemical substances, or by technical equipment in the lab. I am aware that during my work in the chemical lab, I might be exposed to chemical substances that are known to be dangerous, including: explosives, toxins, flammable materials and carcinogens (most chemical compounds are dangerous at some level). I affirm that I will do everything possible, within the guidelines, in order to minimize my exposure and the exposure of others to these substances. I am aware that chemical substances that are considered safe today, may turn out to be hazardous in the future. Future research may show that substances that currently have low danger ratings are actually extremely dangerous. I am aware that operating machinery and equipment in the lab may result in injury, as a result from incorrect or unsafe usage, committed by myself or others, or from malfunctions in the equipment. I do not suffer from a medical condition or any other handicap that may affect my work in the lab or affect my own personal safety or the safety of others. Specifically, I do not suffer from poor eyesight or coordination problems. For persons wearing eyeglasses: I have adjusted to my eyeglasses and they fully correct my eyesight. I do not suffer from a medical condition that may be exacerbated or cause me harm during my work in the lab. If you suffer from a medical condition, or are allergic to any substance, you must contact an occupational physician and obtain written authorization to work in the lab. Your signature on this document certifies that you obtained the necessary permission from an occupational physician. I affirm that I will notify the Technion, in writing, of any change that may occur in my condition or ability to adhere to this agreement, as soon as I become aware of it. In addition, I affirm that I will immediately notify the Technion, in writing, of any malfunction, defect or problem I may encounter, which may affect the wellbeing, health or safety of the people working in the lab or in the surrounding areas. *


    Horiba Jobin Yvon (LabRAM HR Evolution®) Micro-Raman are ideally suited to both micro and macro measurements, and offer advanced confocal imaging capabilities. Our LabRAM HR system equip with:

    • High spatial and spectral resolutions
    • UV (325 nm) and VIS (532 nm) laser sources
    • Ultra-Fast confocal imaging (SWIFT)
    • Visible objectives: 10x and 100x 50x
    • UV objectives: 15x 40x
    • Gratings: 600 gr/mm; 1800 gr/mm
    • Visible Macro lens for liquids measurements
    • Thermometric stage working from –196°C to 600°C
    • Polarizers
    • UV filters for PL measurements

    More information about the RAMAN instrument

    (General Instructions: (Video

    Raman 1 – getting in

    Raman 2 – turn on

    Raman 3 – starting software

    Raman 4 – Si calibration

    Raman 5 – sample measurement

    Raman 6 – turn off

    Raman 7 – UV raman

    Veeco (Dimension 3100) Atomic Force Microscope (AFM) system is operated by the NanoScope IIIa Controller to provide a full range of scanning probe microscopic techniques:

    • Contact and non-contact mode atomic force microscopy with sub-nanometre vertical resolution(lateral resolution is generally limited by the tip geometry, not the instrument)
    • Electric force microscopy capability
    • Magnetic force microscopy capability
    • Tunneling-AFM (TUNA) mode
    • Sample Holds up to 6″ diameter samples
    • large scan size (up to 100 microns)
    • Dedicated PC and analysis software

    More information about the AFM instrument

    TESCAN (Vega-II) Scanning Electron Microscopy (SEM) produces images of almost any sample at magnifications of X1,000 – X50,000. Conductive and nonconductive samples can be imaged. Low vacuum mode – enable to investigate non-conductive and wet samples without coating.

    More information about the SEM instrument

    Bruker (Tensor 27) Fourier Transform InfraRed (FTIR) measures mid IR (400-4000 cm-1) absorbance/transmittance spectra using a high-sensitivity LN-cooled MCT detector. We also perform Attenuated Total Reflectance (ATR) spectroscopy to measure the chemical signature of thin layers, powders and liquids.

    More informationere about the ATR-FTIR instrument

    General Instructions: (Video)
    FIRT 1 – Sample measurement
    FTIR 2-Dataprocess
    FTIR 3 – Integration

    Thermo Scientific CHNS Analyzer (Flash2000) is a most accurate analyzer for the determination of the mass fraction of carbon, hydrogen, nitrogen, and sulfur. This Instrument offers unparalleled accuracy and reliability (100ppm). It is capable of handling a wide variety of sample types, including solids, liquids, volatile and viscous samples.

    More informationere about the CHNS instrument

    Jobin Yvon (Fluorolog-3) Fluorometer is used to measure fluorescence spectra of samples (280 nm – 900 nm). Our system is equipped with a temperature controlled holder (-170 – + 90 °C).

    More informationere abot the Fluoromete instrument

    (General Instructions: (Video

    Fluorometer 1 – general instructions

    Fluorometer 2 – Temperature control

    Shimadzu (UV-1800) Spectrophotometer is a double beam spectrophotometer equipped with deuterium and halogen lamps for enhanced precision across the UV-VIS spectrum (190 – 1100nm). Spectral data is obtained at constant bandpass with a resolution of 1 nm, our system is equipped with a temperature controlled holder (-10 – + 90 c)

    More information about the Spectrophotometer instrument

    (General Instructions: (Video

    Spectrophotometer – instructions

    CEM Cop. (Discover) microwave reactor is a microwave reactor for performing fast and highly controlled reaction. Operating temperature range is RT – 300 °C. Total vial volume capacity is 0.2 to 75 ml. Open vessel capacity reflux with MW power is available.

    More informationere about the MW instrument

    (General Instructions: (Video

    microwave – instructions

    Polaron Sputter coater is available for coating samples with a very thin layer (few nm) of metal (gold etc.). This coating increases the ability of the specimen to conduct electricity and to emit secondary electrons (for SEM measurements).

    Curing UV lamp (RW-UV.3BP) system equipped with high-pressure mercury lamp (total power of 2.2KW) and air cooling.

    Digital Viscometer (SNB-1) measurement rang: 1-600,000 mPa*s equipt with temperature control (10 – 60 °C).

    More informationere about the viscometer instrument

    Fisher Scientific (ECOCELL) oven serves for warming by hot air with natural circulation. The ovens are designed for temperatures up to 250 °C.

    More informationere about the oven instrument

    Schmidt & Haensch (Abbe model AR12) Refractometer
    • Determination of concentration and purity control of liquid media with high or low viscosity and solids.
    • Small sample volume necessary.
    • Can be temperature controlled by a circulating thermostat bath.
    Technical Data:
    • Measuring range of the scale: 1,3000 – 1,7200RI (Refractive Index). 0-95% Bx (sugar weight % in aqueous solution)
    •Precision: ±0.0002.

    More informationere about the Refractometer instrument

    Mettler Toledo (XP6) microbalance equipped with small weighing chamber and the isolating stainless cover.
    • Maximum Capacity 6.1 g
    • Readability 1 μg

    More informationere about the microbalance instrument

    Olympus Light Microscopes (BH2-VMA) equipped with 0.12x, 0.25x, 0.4x and 0.5x objectives and x-y micro-manipulator. A CCD Digital Camera (Hithachi KP-D50) allows capturing still and video film.