Spectroscopy

X-Ray Photoelectron Spectroscopy (XPS)

Elemental composition and the chemical and electronic state of all elements from Li and above can be analysed.

 

Available instruments: Thermo ScientificTM ESCALAB Xi+ X-ray Photoelectron Spectrometer (XPS)

 

Sample acceptance and analysis

Sample TypeSample Quantity Required
Film 1 cm x 1 cm Piece
PowderThe powdered material should be made in to a pellet.
Dispersions0.5 mL of concentrated solution

Samples containing Sulphur and Iodine will not be accepted.

For each sample, either the XPS survey and the narrow scan of three selected elements will be provided or six survey scans will be provided.

X-Ray Diffraction Spectroscopy (XRD)

X-Ray powder Diffraction (XRD) is a rapid, non-destructive, analytical technique used to characterize the crystallinity, crystal phases and the identity of the solid samples.

Suitable for identifying unknown crystalline materials (e.g. minerals, inorganic compounds).

 

Available instruments: X-Ray Diffractometer: Bruker D8 Focus

 

Sample acceptance and analysis

2 theta range: 2 – 90

Sample TypeRequired Sample Specification
Thin films 1″ x 1″ Pieces
PowderAt least 2 – 4 g. Finely ground and homogeneous. Particle size < ~10 µm (or 200 – mesh)

Fourier Transform Infrared Spectroscopy (FTIR)

Fourier-Transform Infrared Spectroscopy (FTIR) is a technique used to obtain an infrared spectrum of absorption or emission of a solid, liquid, or gas. An FTIR spectrometer simultaneously collects high-resolution spectral data over a wide spectral range.

 

Available instruments: Bruker Vertex80 FTIR Spectrometer

 

Sample acceptance and analysis

Analytical range is the mid-infrared range, approximately 4000–400 cm−1 (2.5–25 μm)


Available modes: Attenuated Total Reflection (ATR) and Diffuse Reflectance

Sample TypeSample Quantity Required
Thin Film 0.5 cm x 0.5 cm
Powder10 – 20 mg
Concentrated Liquid 1 mL

The FTIR Database is not available and the laboratory will not provide data interpretation.

Raman Spectroscopy​

Although this spectroscopic technique is most often employed for determining molecular vibrational modes, it is possible to observe rotational and other low-frequency modes of systems. In chemistry, Raman spectroscopy is frequently employed because it provides a structural fingerprint that may be used to identify substances. Available instruments: X-BRUKER SENTERRA Raman microscope spectrophotometer

Sample acceptance and analysis

The required sample quantity is a minimum of 0.5 g.

Available laser wavelengths: 532 nm, 633 nm and 785 nm.

Please select the appropriate wavelength, power of the laser, co-additions and integration time.

UV-Vis Spectroscopy

Available instruments: Shimadzu UV-3600 UV-VIS-NIR spectrophotometer together with UV Probe software.

Available instruments: Full analysis range: 190 nm – 900 nm

Sample acceptance and analysis

Sample TypeMeasurandRequired Sample Quantity
Liquids Absorbance 5 mL
Powder Reflectance 2 g
Sheets and Films Reflectance 2” x 2” Pieces

Nuclear Magnetic Resonance Spectroscopy (NMR)

Available instruments: X-Bruker Ascend TM 400 Nuclear Magnetic Resonance Spectrometer (Both solid state and liquid state NMR analysis are available.)

Sample acceptance and analysis

For Liquid state NMR analysis, 20 mg of the pure compound will be required and the suitable solvent to dissolve the sample shall be recommended by the customer.

Solid state NMR samples – at least 15 g of powdered sample will be required.

The NMR library for structure elucidation is not available and the laboratory will not provide data interpretation.