JOSEFINA PEREZ-ARANTEGUI | University of Zaragoza (original) (raw)
Papers by JOSEFINA PEREZ-ARANTEGUI
TrAC Trends in Analytical Chemistry, 2009
... b Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, 561... more ... b Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, 56126Pisa, Italy. ... Pliny's time onwards was lanoline (oesypon) used as an unguent to remove spots from the face [3]. However, analyses of some products contained in Etrurian and Cretan ...
J. Anal. At. Spectrom., 1994
ABSTRACT
Archaeometry, 2000
ABSTRACT
Analytical and Bioanalytical Chemistry, 2011
This article reviews the analytical techniques and procedures used in the study of ancient cosmet... more This article reviews the analytical techniques and procedures used in the study of ancient cosmetics, therapeutic chemicals, and remedies found in historical and archaeological sites. Well consolidated techniques based on molecular and atomic spectroscopy, for example FT-IR, Raman, SEM-EDX, and XRD, and analytical procedures based on high-performance chromatography and mass spectrometry, for example GC-MS and HPLC-MS are reviewed. The advantages of recently introduced techniques based on synchrotron radiation and on direct mass spectrometric techniques are also discussed. The possibility of extracting information about composition, preparation techniques, and the degradation processes of ancient cosmetics, pharmaceutics, and ritual balms is analysed by use of several case studies.
Analytica Chimica Acta, 2003
In this paper, we propose the use of an electroanalytical technique based on the direct oxidation... more In this paper, we propose the use of an electroanalytical technique based on the direct oxidation or reduction of the electroactive components of the sample on the surface of the working electrode, called voltammetry of immobilised microparticles (VMPs). The sample is easily deposited on the electrode by abrasion and then the electrode is transferred to the electrochemical cell where the square wave potential scan is performed. Electroactive species showed peaks whose peak potential is related to the standard formal potentials. We applied this technique to the identification of iron oxides and hydroxy-oxides in cosmetics. To characterise and identify the iron(III) oxides and hydroxy-oxides VMP was performed in two different media: oxalic acid and hydrochloric acid, that is, a complexing and a slightly complexing media. Two electrode processes were observed. They were influenced by the media and the synthesis procedure of the oxides. The reduction peak at negative potentials (−0.50V in hydrochloric acid and −0.60V in oxalic acid) is related to the direct reduction of the iron(III) oxide and it does not appear in the case of the more reactive phases (hydroxy-oxides). The peak at positive potentials (0.90V in hydrochloric acid and 0.60V in oxalic acid) involves the reduction of iron(III) in solution. The same electrode process were observed for binary mixtures but the peak potentials are shifted from the pure components peak potentials. This allowed us to distinguish between their mixtures. Finally, VMP was used to characterise iron oxides in cosmetic powders.
Analytical and Bioanalytical Chemistry
Single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) is a technique widely us... more Single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) is a technique widely used to obtain direct information about the number concentration and the size distribution of nanoparticles in liquid suspensions. However, its methods still lack clear quality control strategies to confirm the validity of the information derived from them. Only the detection of the complete size distribution of the nanoparticles in a sample over the size critical value ensures obtaining unbiased quantitative information, otherwise information should be restricted to report the presence of nanoparticles over a certain size and number concentration since their actual total number concentration is underestimated and the size overestimated. Under the latter conditions, data processing produces histograms showing the tails of the incomplete size distributions, although apparently, complete distributions can also be obtained when particle events are recorded as peaks, as reported here for the f...
Plant Physiology and Biochemistry, 2012
An approach for the detection and characterization of SA derivatives in plant samples is presente... more An approach for the detection and characterization of SA derivatives in plant samples is presented based on liquid chromatography coupled to electrospray ionization (ESI) tandem mass spectrometric techniques. Precursor ion scan methods using an ESI triple quadrupole spectrometer for samples from plants challenged with the virulent Pseudomonas syringae pv tomato DC3000 allowed us to detect two potential SA derivatives. The criterion used to consider a potential SA derivative is based on the detection of analytes in the precursor ion scan chromatogram upon selecting m/z 137 and m/z 93 that correspond to the salicylate and its main product ion, respectively. Product ion spectra of the newly-detected analytes as well as accurate m/z determinations using an ESI Q-time-of-flight instrument were registered as means of characterization and strongly suggest that glucosylated forms of SA at the carboxylic and at the phenol functional groups are present in plant samples. The specific synthesis and subsequent chromatography of salicylic glucosyl ester (SGE) and glucosyl salicylate (SAG) standards confirmed the chemical identity of both peaks that were obtained applying different tandem mass spectrometric techniques and accurate m/z determinations. A multiple reaction monitoring method has been developed and applied to plant samples. The advantages of this LC-ESI-MS/MS methods with respect to the traditional analysis of glucosyl conjugates are also discussed. Preliminary results revealed that SA and the glucosyl conjugates are accumulated in Arabidopsis thaliana in a time dependent manner, accordingly to the up-regulation of SA-dependent defenses following P. syringae infection. This technique applied to plant hormones or fragment ions may be useful to obtain chemical family members of plant metabolites and help identify their contribution in the signaling of plant defenses.
… dans les pays …, 1996
Parmi les ceramiques du type dit a engobe interne rouge Pompeien, a l'epoque romaine dans la ... more Parmi les ceramiques du type dit a engobe interne rouge Pompeien, a l'epoque romaine dans la nord de la Peninsule Iberique, apparaissent des productions italiques ainsi que des imitations des provinces. Une de ces imitations, avec une pâte tres particuliere composee d'une grande quantite de mineraux micaces, a ete etudiee pour la caracteriser. L'etude petrographique par lame mince de 20 fragments a montre les principales caracteristiques de la matiere premiere qui, liee aux connaissances archeologiques sur la diffusion de ces ceramiques situeraient les ateliers de fabrication dans le nord de la peninsule iberique
… dans les pays …, 1996
Parmi les ceramiques du type dit a engobe interne rouge Pompeien, a l'epoque romaine dans la ... more Parmi les ceramiques du type dit a engobe interne rouge Pompeien, a l'epoque romaine dans la nord de la Peninsule Iberique, apparaissent des productions italiques ainsi que des imitations des provinces. Une de ces imitations, avec une pâte tres particuliere composee d'une grande quantite de mineraux micaces, a ete etudiee pour la caracteriser. L'etude petrographique par lame mince de 20 fragments a montre les principales caracteristiques de la matiere premiere qui, liee aux connaissances archeologiques sur la diffusion de ces ceramiques situeraient les ateliers de fabrication dans le nord de la peninsule iberique
III Congreso Nacional de Arqueometría, 2001
... Importaciones de cerámica de cocina itálica en la tarraconense: estudio de caracterización co... more ... Importaciones de cerámica de cocina itálica en la tarraconense: estudio de caracterización composicional y de procedencia. Autores: María del Carmen Aguarod Otal; Localización: III Congreso Nacional de Arqueometría / coord. ...
Journal of Analytical and Applied Pyrolysis, 2020
Abstract Identification of Asian lacquers in museum objects is a challenging task. Their identifi... more Abstract Identification of Asian lacquers in museum objects is a challenging task. Their identification by mass spectrometry is based on molecular marker recognition, and analysis of chromatographic profiles of several types of molecules. A summary of published markers and chromatographic profiles ‒ obtained with and without thermally assisted reactions (silylation and methylation) ‒ is included in this paper. Based on this, a decision-making scheme was established, and proposed to guide data interpretation. This method of data analysis was then applied to a group of lacquered objects belonging to the Asian art collection of the Museum of Zaragoza (Spain). Based on stylistic and art historical information, the objects are dated from the 16th to the 20th century and attributed to Japanese, Chinese, Burmese and Thai manufacture. Analytical pyrolysis with in situ silylation - gas chromatography coupled with mass spectrometry (Py(HMDS)-GC/MS) was used to analyse the lacquers, and scanning electron microscopy with energy-dispersive X-ray spectrometry (SEM-EDS) was used on cross sections to study the stratigraphy of the objects and understand the artistic techniques. The proposed scheme proved to be a useful analytical guide for the straightforward identification of the lacquer origin, even when this is present in mixture with other organic materials. In fact, a multi-faceted picture emerged, as some of the objects showed interesting mixtures of lacquers, such as urushi and thitsi, or unexpected compositions, which questioned their initial attributions. Complex or unexpectedly simple preparations and restoration treatments of the decorative surfaces were highlighted as well, supporting the museological investigation of these objects, in order to confirm/reject their authenticity and geographical provenance.
Journal of Cultural Heritage, 2016
Phase Transitions, 2008
Ceramic lustre is a fine decoration obtained by a complex technical process. Although the general... more Ceramic lustre is a fine decoration obtained by a complex technical process. Although the general production technique is more or less known, it is much more difficult to specify the ingredients mixed in the ancient recipes used to produce lustre and their function during the process, especially components as mercury sulphide and iron oxide. To understand this point, mixtures of
Journal of the American Ceramic Society, 2004
Page 1. Role of Cinnabar in Luster Production Trinitat Pradell, Judit Molera, Ma`rius Vendrell,... more Page 1. Role of Cinnabar in Luster Production Trinitat Pradell, Judit Molera, Ma`rius Vendrell, Josefina Pérez-Arantegui,§ Emmanuel Pantos,¶ Mark. Roberts,¶ and Marco DiMichiel Departament FEN, ESAB, Universitat ...
TrAC Trends in Analytical Chemistry, 2009
... b Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, 561... more ... b Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, 56126Pisa, Italy. ... Pliny's time onwards was lanoline (oesypon) used as an unguent to remove spots from the face [3]. However, analyses of some products contained in Etrurian and Cretan ...
J. Anal. At. Spectrom., 1994
ABSTRACT
Archaeometry, 2000
ABSTRACT
Analytical and Bioanalytical Chemistry, 2011
This article reviews the analytical techniques and procedures used in the study of ancient cosmet... more This article reviews the analytical techniques and procedures used in the study of ancient cosmetics, therapeutic chemicals, and remedies found in historical and archaeological sites. Well consolidated techniques based on molecular and atomic spectroscopy, for example FT-IR, Raman, SEM-EDX, and XRD, and analytical procedures based on high-performance chromatography and mass spectrometry, for example GC-MS and HPLC-MS are reviewed. The advantages of recently introduced techniques based on synchrotron radiation and on direct mass spectrometric techniques are also discussed. The possibility of extracting information about composition, preparation techniques, and the degradation processes of ancient cosmetics, pharmaceutics, and ritual balms is analysed by use of several case studies.
Analytica Chimica Acta, 2003
In this paper, we propose the use of an electroanalytical technique based on the direct oxidation... more In this paper, we propose the use of an electroanalytical technique based on the direct oxidation or reduction of the electroactive components of the sample on the surface of the working electrode, called voltammetry of immobilised microparticles (VMPs). The sample is easily deposited on the electrode by abrasion and then the electrode is transferred to the electrochemical cell where the square wave potential scan is performed. Electroactive species showed peaks whose peak potential is related to the standard formal potentials. We applied this technique to the identification of iron oxides and hydroxy-oxides in cosmetics. To characterise and identify the iron(III) oxides and hydroxy-oxides VMP was performed in two different media: oxalic acid and hydrochloric acid, that is, a complexing and a slightly complexing media. Two electrode processes were observed. They were influenced by the media and the synthesis procedure of the oxides. The reduction peak at negative potentials (−0.50V in hydrochloric acid and −0.60V in oxalic acid) is related to the direct reduction of the iron(III) oxide and it does not appear in the case of the more reactive phases (hydroxy-oxides). The peak at positive potentials (0.90V in hydrochloric acid and 0.60V in oxalic acid) involves the reduction of iron(III) in solution. The same electrode process were observed for binary mixtures but the peak potentials are shifted from the pure components peak potentials. This allowed us to distinguish between their mixtures. Finally, VMP was used to characterise iron oxides in cosmetic powders.
Analytical and Bioanalytical Chemistry
Single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) is a technique widely us... more Single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) is a technique widely used to obtain direct information about the number concentration and the size distribution of nanoparticles in liquid suspensions. However, its methods still lack clear quality control strategies to confirm the validity of the information derived from them. Only the detection of the complete size distribution of the nanoparticles in a sample over the size critical value ensures obtaining unbiased quantitative information, otherwise information should be restricted to report the presence of nanoparticles over a certain size and number concentration since their actual total number concentration is underestimated and the size overestimated. Under the latter conditions, data processing produces histograms showing the tails of the incomplete size distributions, although apparently, complete distributions can also be obtained when particle events are recorded as peaks, as reported here for the f...
Plant Physiology and Biochemistry, 2012
An approach for the detection and characterization of SA derivatives in plant samples is presente... more An approach for the detection and characterization of SA derivatives in plant samples is presented based on liquid chromatography coupled to electrospray ionization (ESI) tandem mass spectrometric techniques. Precursor ion scan methods using an ESI triple quadrupole spectrometer for samples from plants challenged with the virulent Pseudomonas syringae pv tomato DC3000 allowed us to detect two potential SA derivatives. The criterion used to consider a potential SA derivative is based on the detection of analytes in the precursor ion scan chromatogram upon selecting m/z 137 and m/z 93 that correspond to the salicylate and its main product ion, respectively. Product ion spectra of the newly-detected analytes as well as accurate m/z determinations using an ESI Q-time-of-flight instrument were registered as means of characterization and strongly suggest that glucosylated forms of SA at the carboxylic and at the phenol functional groups are present in plant samples. The specific synthesis and subsequent chromatography of salicylic glucosyl ester (SGE) and glucosyl salicylate (SAG) standards confirmed the chemical identity of both peaks that were obtained applying different tandem mass spectrometric techniques and accurate m/z determinations. A multiple reaction monitoring method has been developed and applied to plant samples. The advantages of this LC-ESI-MS/MS methods with respect to the traditional analysis of glucosyl conjugates are also discussed. Preliminary results revealed that SA and the glucosyl conjugates are accumulated in Arabidopsis thaliana in a time dependent manner, accordingly to the up-regulation of SA-dependent defenses following P. syringae infection. This technique applied to plant hormones or fragment ions may be useful to obtain chemical family members of plant metabolites and help identify their contribution in the signaling of plant defenses.
… dans les pays …, 1996
Parmi les ceramiques du type dit a engobe interne rouge Pompeien, a l'epoque romaine dans la ... more Parmi les ceramiques du type dit a engobe interne rouge Pompeien, a l'epoque romaine dans la nord de la Peninsule Iberique, apparaissent des productions italiques ainsi que des imitations des provinces. Une de ces imitations, avec une pâte tres particuliere composee d'une grande quantite de mineraux micaces, a ete etudiee pour la caracteriser. L'etude petrographique par lame mince de 20 fragments a montre les principales caracteristiques de la matiere premiere qui, liee aux connaissances archeologiques sur la diffusion de ces ceramiques situeraient les ateliers de fabrication dans le nord de la peninsule iberique
… dans les pays …, 1996
Parmi les ceramiques du type dit a engobe interne rouge Pompeien, a l'epoque romaine dans la ... more Parmi les ceramiques du type dit a engobe interne rouge Pompeien, a l'epoque romaine dans la nord de la Peninsule Iberique, apparaissent des productions italiques ainsi que des imitations des provinces. Une de ces imitations, avec une pâte tres particuliere composee d'une grande quantite de mineraux micaces, a ete etudiee pour la caracteriser. L'etude petrographique par lame mince de 20 fragments a montre les principales caracteristiques de la matiere premiere qui, liee aux connaissances archeologiques sur la diffusion de ces ceramiques situeraient les ateliers de fabrication dans le nord de la peninsule iberique
III Congreso Nacional de Arqueometría, 2001
... Importaciones de cerámica de cocina itálica en la tarraconense: estudio de caracterización co... more ... Importaciones de cerámica de cocina itálica en la tarraconense: estudio de caracterización composicional y de procedencia. Autores: María del Carmen Aguarod Otal; Localización: III Congreso Nacional de Arqueometría / coord. ...
Journal of Analytical and Applied Pyrolysis, 2020
Abstract Identification of Asian lacquers in museum objects is a challenging task. Their identifi... more Abstract Identification of Asian lacquers in museum objects is a challenging task. Their identification by mass spectrometry is based on molecular marker recognition, and analysis of chromatographic profiles of several types of molecules. A summary of published markers and chromatographic profiles ‒ obtained with and without thermally assisted reactions (silylation and methylation) ‒ is included in this paper. Based on this, a decision-making scheme was established, and proposed to guide data interpretation. This method of data analysis was then applied to a group of lacquered objects belonging to the Asian art collection of the Museum of Zaragoza (Spain). Based on stylistic and art historical information, the objects are dated from the 16th to the 20th century and attributed to Japanese, Chinese, Burmese and Thai manufacture. Analytical pyrolysis with in situ silylation - gas chromatography coupled with mass spectrometry (Py(HMDS)-GC/MS) was used to analyse the lacquers, and scanning electron microscopy with energy-dispersive X-ray spectrometry (SEM-EDS) was used on cross sections to study the stratigraphy of the objects and understand the artistic techniques. The proposed scheme proved to be a useful analytical guide for the straightforward identification of the lacquer origin, even when this is present in mixture with other organic materials. In fact, a multi-faceted picture emerged, as some of the objects showed interesting mixtures of lacquers, such as urushi and thitsi, or unexpected compositions, which questioned their initial attributions. Complex or unexpectedly simple preparations and restoration treatments of the decorative surfaces were highlighted as well, supporting the museological investigation of these objects, in order to confirm/reject their authenticity and geographical provenance.
Journal of Cultural Heritage, 2016
Phase Transitions, 2008
Ceramic lustre is a fine decoration obtained by a complex technical process. Although the general... more Ceramic lustre is a fine decoration obtained by a complex technical process. Although the general production technique is more or less known, it is much more difficult to specify the ingredients mixed in the ancient recipes used to produce lustre and their function during the process, especially components as mercury sulphide and iron oxide. To understand this point, mixtures of
Journal of the American Ceramic Society, 2004
Page 1. Role of Cinnabar in Luster Production Trinitat Pradell, Judit Molera, Ma`rius Vendrell,... more Page 1. Role of Cinnabar in Luster Production Trinitat Pradell, Judit Molera, Ma`rius Vendrell, Josefina Pérez-Arantegui,§ Emmanuel Pantos,¶ Mark. Roberts,¶ and Marco DiMichiel Departament FEN, ESAB, Universitat ...