13 Result(s)
within
Pablo Rodríguez-González
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Article
Open AccessEvaluation of different isotope dilution mass spectrometry strategies for the characterization of naturally abundant and isotopically labelled peptide standards
Natural abundance and isotopically labelled tryptic peptides are routinely employed as standards in quantitative proteomics. The certification of the peptide content is usually carried out by amino acid analys...
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Chapter
Sport Tourism in the Canary Islands: The Diversification of Mass Tourism
This chapter presents an overview of sport tourism in the Canary Islands, an archipelago that is the leading European Region in tourism, with over 15 million tourists per year, situated 1.000 km south of Spain...
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Article
Assessing class cohesion in primary and secondary education: Development and preliminary validation of the class cohesion questionnaire (CCQ)
The aim of this study was to develop and validate a psychometrically-sound instrument to assess students’ perceptions about class cohesion. Two studies were conducted. In Study 1, four steps were established: ...
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Chapter and Conference Paper
Effects of Destination-Language Proficiency on Tourists’ Motivation
The language barrier has been typically studied as a constraint in international tourism. Little research has focused on how learning the destination language could affect the potential tourists’ motivations, ...
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Article
Open AccessA cost-effective approach to produce 15N-labelled amino acids employing Chlamydomonas reinhardtii CC503
The use of enriched stable isotopes is of outstanding importance in chemical metrology as it allows the application of isotope dilution mass spectrometry (IDMS). Primary methods based on IDMS ensure the qualit...
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Article
Study of the degradation of butyltin compounds in surface water samples under different storage conditions using multiple isotope tracers and GC-MS/MS
The degradation of butyltin compounds in surface water samples under different storage conditions has been studied. A triple spike solution, containing monobutyltin (MBT), dibutyltin (DBT) and tributyltin (TBT...
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Article
Quantification of Cr(VI) in soil samples from a contaminated area in northern Italy by isotope dilution mass spectrometry
The aims of the work were to detect and quantify hexavalent chromium in 14 soil samples from an area in Lombardia (northern Italy) contaminated by two polluted water plumes. Cr(VI) was extracted from the solid...
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Article
Imposex and butyltin burden in Bolinus brandaris (Mollusca, Gastropoda) and sediment from the Tunisian coast
The present study aimed at analyzing the imposex incidence and the presence of butyltins namely tributyltin (TBT) with its di- and mono-substituted metabolites in Bolinus brandaris whole tissues and in surface se...
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Article
Development of a routine method for the simultaneous confirmation and determination of clenbuterol in urine by minimal labeling isotope pattern deconvolution and GC-EI-MS
A novel and fast routine method for the simultaneous determination and confirmation of clenbuterol in bovine and human urine samples by gas chromatography electron ionization mass spectrometry (GC-EI-MS) has b...
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Article
Monitoring of Organotin Pollution in Bizerta Channel (Northern Tunisia): Temporal Trend from 2002 to 2010
Imposex and tributyltin (TBT) body burden were quantified in the gastropod Hexaplex trunculus collected from the Bizerta channel between 2002 and 2010. Except for the imposex frequency tha...
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Article
Contamination of the Coastal Waters of Gijón (North West Spain) by Butyltin Compounds
An innovative method for the determination of butyltin compounds in seawater samples based on the use of isotope dilution analysis has been applied to study the contamination of butyltin compounds in the Bay o...
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Article
Isotope dilution GC-MS routine method for the determination of butyltin compounds in water
A standard GC-MS instrument with electron impact ionisation has been used to develop a fast, simple and reliable method for the simultaneous determination of monobutyltin (MBT), dibutyltin (DBT) and tributylti...
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Article
Monitoring the degradation and solubilisation of butyltin compounds during in vitro gastrointestinal digestion using “triple spike” isotope dilution GC-ICP-MS
An in vitro gastrointestinal digestion approach in combination with species-specific isotope dilution analysis has been employed for the first time to study the transformation reactions as well as the solubili...
