Center of Advanced Characterization Facilities

UV Spectrophotometer
Make: Shimatzu, Model:UV-1800

The UV-spectrum is due to the electronic transitions and vibrational modes of the molecule. The absorption (A) of a solution at a particular wavelength is given by Beer-Lambert's law A=ect where c is the concentration of the compound, t is the thickness of the cell and e is the molar extinction coefficient characteristic of the compound at a given wavelength. This principle is used for quantitative measurements.

Essential Specification :

• Wave length Range : 170 nm to 1100nm
• Resolution : 0.1 nm.
• Samples required : 20 mg.
• Solvent must be specified for solution studies.

Gas Chromatography Mass Spectrometry (GC-MS)
Make: Shimatzu, Model:Ultra Q20

In general the analytical GCMS is used to obtain information for the identification, quantification, and resolution of a compound synthesized. GCMS systems are currently used in a wide variety of fields like food & beverages, pharmaceuticals, agriculture, environmental and etc.

Essential Specification :

• Sample Injector : Auto injector & manual injector for liquid samples and gas samples. For solid samples, direct injection mode available (DI).
• Composition accuracy : +/- 0.5%
• Detectors : FID, TCD and MS.

Thermo Gravimetric Analysis (TGA)
Make: TA Instruments, Model: STD Q600

Thermal studies are used to study the thermal properties of the materials as a function of temperature, while the materials are subjected to a controlled temperature and atmospheric condition. TGA studies are includes, Thermogravimetry analyses (TGA) - change in weight and Differential Thermal Analysis (DTA) -temperature difference. This technique widely used for polymers, organic, inorganic, metals, alloys, glass, and ceramics materials. Essential Specification : Simultaneous TG-DTA measurements Temperature range : RT to 1100°C Purge gas : Nitrogen, Pan: Alumina

Differential Thermal Analysis (DSC)
Make: TA Instruments, Model: Q20

This is another thermal studies are used to study the thermal properties of the materials. Here, heat flow measured as a function of temperature, while the materials are subjected to a controlled temperature and atmospheric condition. This technique widely used for polymers, organic, inorganic, metals, alloys, glass, and ceramics materials.

Essential Specification & Features:

• Temperature range: -80^°C to 400^°C,
• Maximum rate of heating 30^°C/min
• Purge gas: Nitrogen, Pan: Aluminium
• Capable for measurements including Glass transition temperature, Melting point, Specific heat measurement, Degree of crystallinity and Reaction kinetics.

X-Ray Diffraction (X-RD)
Make: Rigaku, Model: Ultima IV

X-ray diffraction analysis is a fast, non-destructive and environmentally friendly analysis method with very high accuracy and reproducibility. X-ray diffraction facility offers high quality diffraction data for both powder and thin film specimens including Inorganic materials, ceramics, metals, intermetallic, minerals, and composites.

Field Emission – Scanning Electron Microscopy (FE-SEM)
Make: Carlzeiss, Model: Gemini 300

Field Emission Scanning Electron Microscope (FE-SEM) provides ultra-high resolution imaging at low accelerating voltages and small working distances. The Geminis SEM 300 provides resolution of the images is as low as 2 nm at 15 kV, allowing examination of the top surface of nano-powders, nano-film and nanofiber in the wide range of applications such as mineralogy, ceramics, polymer, metallurgy, electronic devices, chemistry, physics and life sciences.