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SONNIA MARBEL PARRA VARGAS

PONTIFICIA UNIVERSIDAD CATÓLICA DE VALPARAÍSO

Valparaíso, Chile


Development of a new methodology for the determination of PET microplastics in sediment, based on microwave-assisted acid digestion Perez, M., Parra, S., Ferrada, C Article PLoS One (2024)
EVALUATION OF MICROWAVE-ASSISTED ACID/OXIDANT DIGESTION METHOD FOR THE DETECTION OF POLYETHYLENE MICROPLASTICS IN Merluccius Gayi FISH BY NILE RED FLUORESCENT STAINING AND IMAGE ANALYSIS Ferrada, C., Perez, Marco., Parra, S Article JOURNAL OF CHILEAN CHEMICAL SOCIETY (2024)
EXPOSURE TO ENVIRONMENTAL POLLUTION IN SCHOOLS OF PUCHUNCAVÍ, CHILE: CHARACTERIZATION OF HEAVY METALS, HEALTH RISK ASSESSMENT, AND EFFECTS ON CHILDREN’S ACADEMIC PERFORMANC Parra, s-. De la Fuente, H., Gonzales, A Article SUSTAINABILITY (2024)
IMPACT OF COVID-19 LOCKDOWN ON NO2, NOX, O3 AND PM2,5 CONCENTRATIONS IN SANTIAGO DE CHILE Article JOURNAL OF THE CHILEAN CHEMICAL SOCIETY (2021)
Naturally elevated arsenic in the Altiplano-Puna, Chile and the link to recent (Mio-Pliocene to Quaternary) volcanic activity, high crustal thicknesses, and geological structures Tapia, J., Schneider, B., Inostroza, M Article JOURNAL OF SOUTH AMERICAN EARTH SCIENCES (2021)
Deltamethrin determination in natural water samples via photochemically-induced fluorescence coupled to third-order multivariate calibration Veneciano, R., Parra, S., Quiroz., W Article MICROCHEMICAL JOURNAL (2020)
HUMAN EXPOSURE ASSESSMENT TO MERCURY THROUGH HAIR ANALYSIS IN COASTAL VILLAGES OF THE VALPARAISO REGION (CHILE) Sonnia Parra; Waldo Quiroz; Alexander Neaman Article ISI SCIELO SCOPUS JOURNAL OF THE CHILEAN CHEMICAL SOCIETY (2019)
EVALUATION OF MONOLITHIC COLUMN FOR INORGANIC MERCURY AND METHYLMERCURY DETERMINATION IN FISH SAMPLE ANALYSIS Manuel A. Bravo; Ornella Riquelme; Sonnia Parra; Jan Bergmann; Waldo Quiroz Article ISI SCIELO JOURNAL OF THE CHILEAN CHEMICAL SOCIETY (2018)
Determination of organotin compounds in sediment samples by dispersive liquid-liquid microextraction followed by gas chromatography – Pulsed flame photometric detection (DLLME-GC-PFPD) Article MICROCHEMICAL JOURNAL (2017)
EVALUATION OF MICROWAVE-ASSISTED EXTRACTION FOR ORGANOTIN DETERMINATION IN VEGETAL AND SOIL MATRICES Bravo, M., Parra, S., Verdugo M Article JOURNAL OF CHILEAN CHEMICAL SOCIETY (2017)
CHEMOMETRIC OPTIMIZATION OF AN EXTRACTION PROCEDURE USING TARTARIC ACID FOR BUTYLTIN COMPOUNDS FROM SEDIMENT SAMPLES BY GC-PFPD Flores, M; Parra, S; Quiroz W.; Maxwell P.; Mester, Z Article ISI SCIELO SCOPUS JOURNAL OF THE CHILEAN CHEMICAL SOCIETY (2015)
Distribution and pollution assessment of trace elements in marine sediments in the Quintero Bay (Chile) Parra, S; Quiroz W.; Querol, X.; Paipa, C. Article ISI SCOPUS Marine Pollution Bulletin (2015)
Distribution of trace elements in particle size fractions for contaminated soils by a copper smelting from different zones of the Puchuncavi Valley (Chile) Parra, S; Quiroz W.; Moreno, T.; Karanasiou, A; Font, O; Vidal, V.; Cereceda F. Article ISI SCOPUS CHEMOSPHERE (2014)
Source apportionment for contaminated soils using multivariate statistical methods Parra, S; Quiroz W.; Moreno, T.; Karanasiou, A; Font, O; Vidal, V.; Cereceda-Balic F. Article ISI SCOPUS CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS (2014)


DEVELOPMENT AND VALIDATION OF ANALYTICAL METHODOLOGIES FOR MERCURY SPECIATION IN SEAFOOD AND HUMAN HAIR BY MOLECULAR FLUORESCENCE COUPLED TO SECOND ORDER MULTIVARIATE CALIBRATION FONDECYT (1150950) Proyecto 2017-2017 Personal técnico y/o de apoyo
Characterization of sediments and biota of the Quintero Bay (central Chile) using multivariate statistical techniques. PUCV - VRIEA (convenio desempeño VRIEA 2013) Proyecto 2013-2014 Postdoctorado
Research stay. Center for Scientific Research (CSIC) Barcelona- Spain MECESUP (UCH0601) Proyecto 2011-2012 Investigador(a)
Research stay. Center for Scientific Research (CSIC) Barcelona- Spain MECESUP (MECESUP UCH 0601) Proyecto 2010-2011 Investigador(a)
Determination of the origin and mechanism of contamination by metals and metalloids in the soils of the Puchuncaví Valley (Chile) Conicyt (57080047) Proyecto 2008-2012 Inv. Responsable
Determination of the origin and mechanism of contamination by metals and metalloids in the soils of the Puchuncaví Valley (Chile) PFCHA (57080047) Proyecto 2008-2013 Inv. Responsable

Francisco Cereceda

Profesor Titular

Química

Universidad Técnica Federico Santa María

Valparaíso, Chile

SONNIA PARRA

PONTIFICIA UNIVERSIDAD CATÓLICA DE VALPARAÍSO

Valparaíso, Chile

Marcos Flores

academico

de Horticultura

Universidad de Talca

TALCA, Chile

Víctor Vidal

Apoyo Académico

Departamento de Química

Universidad Técnica Federico Santa María

Valparaíso, Chile

Waldo Quiroz

Profesor Titular

Pontificia Universidad Católica de Valparaíso

Valparaíso, Chile

SONNIA MARBEL PARRA VARGAS

Líneas de Investigación

Article (14)

Development of a new methodology for the determination of PET microplastics in sediment, based on microwave-assisted acid digestion

EVALUATION OF MICROWAVE-ASSISTED ACID/OXIDANT DIGESTION METHOD FOR THE DETECTION OF POLYETHYLENE MICROPLASTICS IN Merluccius Gayi FISH BY NILE RED FLUORESCENT STAINING AND IMAGE ANALYSIS

EXPOSURE TO ENVIRONMENTAL POLLUTION IN SCHOOLS OF PUCHUNCAVÍ, CHILE: CHARACTERIZATION OF HEAVY METALS, HEALTH RISK ASSESSMENT, AND EFFECTS ON CHILDREN’S ACADEMIC PERFORMANC

IMPACT OF COVID-19 LOCKDOWN ON NO2, NOX, O3 AND PM2,5 CONCENTRATIONS IN SANTIAGO DE CHILE

Naturally elevated arsenic in the Altiplano-Puna, Chile and the link to recent (Mio-Pliocene to Quaternary) volcanic activity, high crustal thicknesses, and geological structures

Deltamethrin determination in natural water samples via photochemically-induced fluorescence coupled to third-order multivariate calibration

HUMAN EXPOSURE ASSESSMENT TO MERCURY THROUGH HAIR ANALYSIS IN COASTAL VILLAGES OF THE VALPARAISO REGION (CHILE)

EVALUATION OF MONOLITHIC COLUMN FOR INORGANIC MERCURY AND METHYLMERCURY DETERMINATION IN FISH SAMPLE ANALYSIS

Determination of organotin compounds in sediment samples by dispersive liquid-liquid microextraction followed by gas chromatography – Pulsed flame photometric detection (DLLME-GC-PFPD)

EVALUATION OF MICROWAVE-ASSISTED EXTRACTION FOR ORGANOTIN DETERMINATION IN VEGETAL AND SOIL MATRICES

CHEMOMETRIC OPTIMIZATION OF AN EXTRACTION PROCEDURE USING TARTARIC ACID FOR BUTYLTIN COMPOUNDS FROM SEDIMENT SAMPLES BY GC-PFPD

Distribution and pollution assessment of trace elements in marine sediments in the Quintero Bay (Chile)

Distribution of trace elements in particle size fractions for contaminated soils by a copper smelting from different zones of the Puchuncavi Valley (Chile)

Source apportionment for contaminated soils using multivariate statistical methods

Proyecto (6)

DEVELOPMENT AND VALIDATION OF ANALYTICAL METHODOLOGIES FOR MERCURY SPECIATION IN SEAFOOD AND HUMAN HAIR BY MOLECULAR FLUORESCENCE COUPLED TO SECOND ORDER MULTIVARIATE CALIBRATION

Characterization of sediments and biota of the Quintero Bay (central Chile) using multivariate statistical techniques.

Research stay. Center for Scientific Research (CSIC) Barcelona- Spain

Research stay. Center for Scientific Research (CSIC) Barcelona- Spain

Determination of the origin and mechanism of contamination by metals and metalloids in the soils of the Puchuncaví Valley (Chile)

Determination of the origin and mechanism of contamination by metals and metalloids in the soils of the Puchuncaví Valley (Chile)

Francisco Cereceda

SONNIA PARRA

Marcos Flores

Víctor Vidal

Waldo Quiroz