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Coupled Multispectroscopy Singular Laboratory (Raman-LASPEA)

Research Area: 
Physical Sciences
Engineering & Technology
Life & Medical Sciences
Social Sciences & Humanities
Location: 

University of the basque country UPV/EHU
Medicine and odontology faculty
Local 1R7
Barrio Sarriena s/n 48940 - Leioa (Bizkaia)

Contact: 

Dr. Alfredo Sarmiento
Phone: 94 601 3533
e-mail: alfredo.sarmiento@ehu.es

Available for external users?: 
Yes
Access protocol: 

Conditions for using the service
Internal users of the University of the Basque Country / Euskal Herriko Unibertsitatea, in addition to institutions that maintain agreements with the UPV/EHU, are able to take advantage of special prices for the services contracted at the Advanced Research Facilities (SGIker). These special prices are subject to the following clauses:

The results obtained cannot be used to obtain any additional gain.
If the results obtained from the analyses are published in magazines, congresses or talks, etc., express reference muat be provided to the technician and the SGIker service where the results were obtained in the acknowledgements section. Parties to the contract are duty bound to provide the technician with a copy of the relevant article, abstract or book chapter.

General rules
Access to the unit of Coupled Multispectroscopy Singular Laboratory (Raman-LASPEA) involves meeting the requirements set forth in the Protocol for access to SGIker and the services it provides.

Description: 

The combination of basic techniques and molecular spectroscopy is a powerful tool that has been successfully applied in conducting qualitative and quantitative analysis in fields as diverse as Earth Sciences, Environment, Fine Arts and / or Materials Sciences .

The posibility to analyze both organic and inorganic compounds (solids, solutions, pastes, gels, films, etc.) as well as little or no sample preparation (nondestructive techniques or microinvasive) are some of the main advantages of this analytical methodology .

The Singular Coupled Multispectroscopy Laboratory (Raman-LASPEA) is part of the General Research Services (SGIker) of the UPV / EHU and currently has the following instrumental techniques: FTIR imaging microscopy, confocal Raman microscopy, structural and chemical analyzer or SCA (combination electron microscopy, microanalysis or EDS , Raman spectroscopy and photoluminescence ), Raman imaging microscopy and atomic force microscopy (AFM-Raman and TERS).

Services: 

The infrastructure available at the Coupled Multispectroscopy Laboratory (Raman-LASPEA) enables analysis to be carried out in different technical-scientific areas. Any material with covalent links can be analysed using Raman and FRIT techniques. Some of the areas of application are listed below:

Earth Sciences (Geochemistry)
Mineral phase and rock characterisation
Identifying precious stones
Sludge study
Fine Arts and Humanities
Paints
Agglutinants
Sculptures
Strategic cuts
Sciences of the Materials
Studying new polymers
Inorganic compounds with special properties
Nanoparticles
Engineering and the Environment
Pollution mechanisms and sources
Monitoring chemical reactions and processes
Catalyser characterisation and development
Pre-history and Ancient History
Studying supports
Studying techniques to prepare archaeological materials
Fossils
Biomedicine
Studying cancer cells

Equipment

Confocal Raman Microscope

- Three excitation lasers: 325, 514 and 785 nm
- Ability to perform both puntual measurements as surface analysis by Raman image
- Two external optical fiber probes allow analysis of macrosamples and a Linkam TS1500 temperature platform, obtain spectra of compounds at high temperatures

FTIR spectrometer

The laboratory is equipped with an FTIR spectrometer made by Jasco (4200 model) for determining FTIR spectres in medium infrared (400-4000 cm-1 ) using the potassium bromide pellet technique. The spectral resolution attained by the equipment is 0.5 cm-1.

FTIR image microscope

The FTIR spectrometer is coupled to an FTIR scanning microscope made by Jasco (IMV 4000 model) and with motorized slide for carrying out FTIR Image analysis. The spectroscopic range scanned is from 4000 tp 750 cm-1 (limit determined by ZnSe optics). Its 16-detector online matrix enables analyses to be carried out in very short periods of time. Analyses may be carried out both in reflectance mode (16x y 32x), and transmittance mode (16x y 32x), as well as in ATR (16x).

SEM microscope

The laboratory has Carl-Zeiss EVO-40 Electronic Scanning Microscopy equipment at its disposal, whereby both photography in high vacuum mode (with metallization of the samples) and in extended pressure or low vacuum and wet sample mode (without the need to metallize the samples) can be used.

The ewuipment features a secondary electron detector (SIM) and a retroscattered electron detector, together with an EDS elementary analyzer.

EDS microanalysis equipment

The labatory has EDS microanalysis equipment made by Oxford Instruments at its disposal, coupled to the camera of the SEM microscope, thus enabling elementary analyses of the samples observed in the microscope to be carried out.

The EDS equipment enables both specific analyses such as scanning and mapping to be carried out, thus also permitting the analysis of EDS image from both a qualitative and quantitative standpoint.