Fieldable chemical analysis

The UMALASERLAB specializes in the development of fieldable instrumentation. A large number of measurement campaigns have been completed in scenarios such a desert, seashore, urban areas, steel factories, and other extreme environments.

The following is a list of field operations:


OPTICAL TECHNIQUES FOR STANDOFF SENSING OF EXPLOSIVES. FIELD TESTS CONDUCTED ON THE “LA MARAÑOSA” TECHNOLOGICAL INSTITUTE (ITM), SPAIN.

Interest in the use of laser-based sensors operating in standoff mode is increasing due to the wide range of options offered in the evaluation of distant targets. The possibility of direct and distant access to suspect targets by standoff measurements makes Raman and LIBS valuable tools in operational scenarios for security forces. However, despite their high potential, the performance aspects of any sensor for analysis at a distance are curtailed as compared with its use in situ. Careful evaluations of the experimental parameters governing the analytical response of these techniques, particularly in respect to the amenable distance to target, the data acquisition speed, and the sources of uncertainty in any given measurement are required. Spectroscopic fingerprints collected from a wide range of high explosives and associated compounds under different analysis conditions and operational scenarios were evaluated in terms of signal strength, signal-to-noise ratio, analytical sensitivity, and signal stability.

PERSONNEL:

  • JAVIER LASERNA
  • PATRICIA LUCENA
  • LUCIANO TOBARIA
  • JAVIER MOROS
  • JUAN ANTONIO LORENZO
  • INMACULADA GAONA

DATE: from November 23th  to December 4th, 2008

INSTRUMENTATION:

Demonstrator prototype #1: A field-deployable Raman sensor designed for standoff measurements at distances of up to tens of meters was used in Raman investigations.Demonstrator prototype #2: A field-deployable sensor designed for standoff measurements at distances of up to a few hundred meters was used in LIBS investigations.Sensors are mounted on a movable platform each, equipped with leveling feet to ensure stability in spite of the nature of the ground. Furthermore, lasers and telescopes are fitted with pneumatic-leveling isolation mounts to avoid oscillations at the focusing point on the target and at the light collection point on the optical fiber.

FUNDING AGENCY: Spanish Government. MINISTERIO DE CIENCIA E INNOVACIÓN. CTQ2007-60348 project


CHEMICAL CHARACTERIZATION AND DIAGNOSIS OF ARCHAEOLOGICAL OBJECTS FROM THE NECROPOLIS OF LA JOYA

Archaeological objects were in-situ characterized in the facilities of IAPH. Binary (Cu-Sn) and ternary (Cu-Sn-Pb) bronzes alloys were identified in the set of samples. Ceramic materials were also characterized during the analysis.

PERSONNEL:

  • LUISA Mª CABALÍN
  • FRAN FORTES

DATE: from March 10th  to 11th  and from March 31th to April 1th, 2008

INSTRUMENTATION: Man portable LIBS system
FUNDING AGENCY: Andalusian government. INSTITUTO ANDALUZ DEL PATRIMONIO HISTÓRICO (IAPH) – La Joya. 8.07/39.2191-2 project

IDENTIFICATION OF CHEMICAL FINGERPRINTS IN THE WRECK OF SAN PEDRO DE ALCÁNTARA

Inspection and identification of archaeological assets in a real underwater archaeological site. Iron cannons, metallic artefacts and ceramics materials were in-situ analyzed at a depth of 10 m.

PERSONNEL:

  • JAVIER LASERNA
  • MILAGROS ALZAGA
  • JOSEFA MARTÍ
  • NURIA ESTHER RODRÍGUEZ
  • AURORA HIGUERAS-MILENA
  • FRANCISCO JAVIER FORTES
  • MARINA LÓPEZ
  • SALVADOR GUIRADO

DATE: from September 20th to 22th, 2015

INSTRUMENTATION: AQUALAS
FUNDING AGENCY: Andalusian Government.  P11-FQM-7193 project

DESIGN AND CONSTRUCTION OF A NOVEL REMOTE LASER-INDUCED BREAKDOWN SPECTROSCOPY SYSTEM FOR UNDERWATER ANALYSIS. FIELD TEST
A number of field test were designed to evaluate the robustness and analytical capabilities of the novel designed AQUALAS instrument.

PERSONNEL:

  • FRANCISCO JAVIER FORTES
  • MARINA LÓPEZ
  • SALVADOR GUIRADO

DATE: July 25th, 2014

INSTRUMENTATION: AQUALAS
FUNDING AGENCY: Andalusian Government.  P11-FQM-7193 project

IN SITU DETECTION OF OIL SPILL RESIDUES IN THE GALICIAN COAST

A man portable LIBS analyzer was used for the on-site environmental control and analysis of the oil spill from The Prestige in the Galician Coast. LIBS was used to identify the differences or similarities between crude oil and fuel residues.

PERSONNEL:

  • JAVIER LASERNA
  • LUISA MARÍA CABALÍN
  • FRANCISCO JAVIER FORTES

DATE: from November 19th to 22th, 2007

INSTRUMENTATION: Man portable LIBS system
FUNDING AGENCY: Spanish Government. MINISTERIO DE CIENCIA E INNOVACIÓN. CTQ2004-02966 project

REAL TIME AND IN SITU DETERMINATION OF LEAD IN ROAD SEDIMENTS

In situ, real time levels of lead in road sediments were measured using the man-portable LIBS instrument. During the field campaign, averaged Pb concentration in the sediments were ranging from 480 µg g−1 to 660 µg g−1 depending on the inspected area, i.e. the entrance, the central part and the exit of the tunnel. The L.O.D. was calculated in µg g−1.

PERSONNEL:

  • JOSÉ CUÑAT
  • FRAN FORTES
  • LUIS ÁLVAREZ

DATE: 2006
INSTRUMENTATION: Man portable LIBS system
FUNDING AGENCY: Spanish Government. MINISTERIO DE CIENCIA E INNOVACIÓN. CTQ2007-60348 project

CHRONOCULTURAL SORTING OF ARCHAEOLOGICAL BRONZE OBJECTS IN THE MUSEUM OF MALAGA

A set of 30 archaeological metallic objects from the Museum of Malaga was chemically characterized by the man-portable LIBS instrument. Bronze artefacts were sorted according to their metal content.

PERSONNEL:

  • FRANCISCO JAVIER FORTES
  • MARINA LÓPEZ
  • SALVADOR GUIRADO

DATE: July 25th, 2014
INSTRUMENTATION: AQUALAS
FUNDING AGENCY: Andalusian government. P11-FQM-7193 project

MAN-PORTABLE LIBS SYSTEM FOR IN SITU CHARACTERIZATION OF KARSTIC FORMATIONS

Field testing of a man-portable instrument for in situ chemical screening in areas of geochemical importance such as the Nerja Cave (Malaga, Spain). Sr/Ca depth profiles obtained present different trends, which could be used as indicators for paleoclimatology and paleohydrology and could explain the speleothem genesis.

PERSONNEL:

  • JOSÉ CUÑAT
  • FRAN FORTES

DATE: from june 7th, 2005 to December 21th, 2005
INSTRUMENTATION:  Man portable LIBS system
FUNDING AGENCY: Foundation ‘CUEVA DE NERJA’

IN SITU ANALYTICAL ASSESSMENT AND CHEMICAL IMAGING OF HISTORICAL BUILDINGS USING A MAN-PORTABLE LASER SYSTEM
A man-portable laser system was used for the in situ analytical assessment and chemical mapping of the facade of the cathedral of Malaga (Spain). A chemical characterization of the different materials employed in the construction of this building was performed to qualitatively discriminate between sandstone, limestone, marble, and cement mortar, which are the main components used in this class of historical monument.
PERSONNEL:

  • JOSÉ CUÑAT
  • FRAN FORTES

DATE: from October4th, 2005 to October 6th, 2006

INSTRUMENTATION:  Man portable LIBS system

FUNDING AGENCY: Andalusian government. INSTITUTO ANDALUZ DEL PATRIMONIO HISTÓRICO (IAPH)- CATEDRAL.

PORTABLE INSTRUMENT FOR IN SITU CHARACTERIZATION OF SPELEOTHEMS IN KARSTIC CAVES

A portable LIBS instrument was developed and tested in the determination of thickness and semi-quantitative composition of alteration layers on the surface of speleothems in the Cave of Nerja (Malaga, Spain). Composition depth profiles of Fe, Si, Al and Mn were measured in order to evaluate alteration processes in the Nerja Cave.

PERSONNEL:

  •  JAVIER LASERNA
  • JOSÉ CUÑAT
  • FRAN FORTES

DATE: February 6th, 2004

INSTRUMENTATION:  Prototype 1 portable LIBS system

FUNDING AGENCY: Foundation ‘CUEVA DE NERJA’

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