Extracción en fase sólida como una alternativa para el procedimiento de limpieza en la determinación de hidrocarburos aromáticos policíclicos por cromatografía de gases

Extracción en fase sólida como una alternativa para el procedimiento de limpieza en la determinación de hidrocarburos aromáticos policíclicos por cromatografía de gases PDF Author: Araceli Peña
Publisher:
ISBN:
Category :
Languages : es
Pages : 13

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Extracción en fase sólida como una alternativa para el procedimiento de limpieza en la determinación de hidrocarburos aromáticos policíclicos por cromatografía de gases

Extracción en fase sólida como una alternativa para el procedimiento de limpieza en la determinación de hidrocarburos aromáticos policíclicos por cromatografía de gases PDF Author:
Publisher:
ISBN:
Category :
Languages : es
Pages : 11

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Automatización de la extracción en fase sólida de los pesticidas organoclorados y hidrocarburos aromáticos policíclicos

Automatización de la extracción en fase sólida de los pesticidas organoclorados y hidrocarburos aromáticos policíclicos PDF Author: Concepción Gómez Cavero
Publisher:
ISBN:
Category :
Languages : es
Pages : 64

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Book Description
Para poder extraer satisfactoriamente pesticidas organoclorados e hidrocarburos aromáticos policíclicos se ha desarrollado un método de automatización basado en la extracción en fase sólida. Cuando se han extraído los analitos, los pesticidas organoclorados (POCs) los analizamos en cromatografía de gases masas (CG-MS) y los hidrocarburos aromáticos policíclicos (HAPs) en cromatografía líquida con detector de fluorescencia (HPLC-FLD). Los límites de detección son de ng/L en ambas técnicas y estos resultados gracias a la automatización del método se han mejorado. La reproducibilidad de las mediciones de POCs y de HAPs son muy buenas, con una precisión y exactitud coherentes con las exigencias de los criterios sanitarios de la calidad del agua de consumo humano (RD140/2003). Las periodicidades de las muestras en la red de distribución se analizan según el mencionado RD 140/2003.

Acoplamiento en línea de extracción en fase sólida con cromatografía de fluidos supercríticos para el análisis de trazas de compuestos fenólicos e hidrocarburos aromáticos policíclicos en aguas

Acoplamiento en línea de extracción en fase sólida con cromatografía de fluidos supercríticos para el análisis de trazas de compuestos fenólicos e hidrocarburos aromáticos policíclicos en aguas PDF Author: María Luisa Serna Moreno
Publisher:
ISBN:
Category :
Languages : es
Pages : 223

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Aplicación de los sistemas de extracción en fase sólida a la determinación de compuestos de interés medioambiental:hidrocarburos aromáticos policíclicos y naftalensulfonatos[

Aplicación de los sistemas de extracción en fase sólida a la determinación de compuestos de interés medioambiental:hidrocarburos aromáticos policíclicos y naftalensulfonatos[ PDF Author: Rachid El Harrak
Publisher:
ISBN:
Category :
Languages : es
Pages : 182

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Automatización de la extracción en fase sólida de los pesticidas organoclorados e hidrocarburos aromáticos policiclicos

Automatización de la extracción en fase sólida de los pesticidas organoclorados e hidrocarburos aromáticos policiclicos PDF Author: Concepción Gómez Cavero
Publisher:
ISBN:
Category :
Languages : es
Pages : 0

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Process-Induced Food Toxicants

Process-Induced Food Toxicants PDF Author: Richard H. Stadler
Publisher: John Wiley & Sons
ISBN: 0470430095
Category : Technology & Engineering
Languages : en
Pages : 744

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Book Description
Process-Induced Food Toxicants combines the analytical, health, and risk management issues relating to all of the currently known processing-induced toxins that may be present in common foods. It considers the different processing methods used in the manufacture of foods, including thermal treatment, drying, fermentation, preservation, fat processing, and high hydrostatic pressure processing, and the potential contaminants for each method. The book discusses the analysis, formation, mitigation, health risks, and risk management of each hazardous compound. Also discussed are new technologies and the impact of processing on nutrients and allergens.

Phosphorus in Environmental Technology

Phosphorus in Environmental Technology PDF Author: E. Valsami-Jones
Publisher: IWA Publishing
ISBN: 1843390019
Category : Science
Languages : en
Pages : 681

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Book Description
Phosphorus in Environmental Technology: Principles and Applications, provides a definitive and detailed presentation of state-of-the-art knowledge on the environmental behaviour of phosphorus and its applications to the treatment of waters and soils. Special attention is given to phosphorus removal for recovery technologies, a concept that has emerged over the past 5-6 years. The book features an all-encompassing approach: the fundamental science of phosphorus (chemistry, geochemistry, mineralogy, biology), key aspects of its environmental behaviour and mobility, industrial applications (treatment, removal, recovery) and the principles behind such applications, novel biotechnologies and, importantly, it also addresses socio-economic issues which often influence implementation and the ultimate success of any new technology. A detailed subject index helps the reader to find their way through the different scientific and technological aspects covered, making it an invaluable reference work for students, professionals and consultants dealing with phosphorus-related environmental technologies. State-of-the-art knowledge on the behaviour of phosphorus and its applications to environmental science and technology. Covers all aspects of phosphorus in the environment, engineered and biological systems; an interdisciplinary text.

Soil and Sediment Remediation

Soil and Sediment Remediation PDF Author: Piet Lens
Publisher: IWA Publishing
ISBN: 1843391007
Category : Science
Languages : en
Pages : 545

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Book Description
Soil and Sediment Remediation discusses in detail a whole set of remediative technologies currently available to minimise their impact. Technologies for the treatment of soils and sediments in-situ (landfarming, bioscreens, bioventing, nutrient injection, phytoremediation) and ex-situ (landfarming, bio-heap treatment, soil suspension reactor) will be discussed. The microbiological, process technological and socio-economical aspects of these technologies will be addressed. Special attention will be given to novel biotechnological processes that utilise sulfur cycle conversions, e.g. sulfur and heavy metal removal from soils. Also the potential of phytoremediation will be highlighted. In addition, treatment schemes for the clean-up of polluted megasites, e.g. harbours and Manufactured Gaswork Plants (MGP), will be elaborated. The aim of Soil and Sediment Remediation is to introduce the reader in: the biogeochemical characteristics of soil and sediments- new techniques to study soil/sediment processes (molecular probes, microelectrodes, NMR) clean up technologies for soils polluted with organic (PAH, NAPL, solvents) or inorganic (heavy metals) pollutants- preventative and remediative strategies and technologies available in environmental engineering novel process applications and bioreactor designs for bioremediation the impact of soil pollution on society and its economic importance.

Bioactive Compounds in Foods

Bioactive Compounds in Foods PDF Author: John Gilbert
Publisher: John Wiley & Sons
ISBN: 1444302299
Category : Technology & Engineering
Languages : en
Pages : 432

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Book Description
Inherent toxicants and processing contaminants are bothnon-essential, bioactive substances whose levels in foods can bedifficult to control. This volume covers both types of compound forthe first time, examining their beneficial as well as theirundesirable effects in the human diet. Chapters have been writtenas individually comprehensive reviews, and topics have beenselected to illustrate recent scientific advances in understandingof the occurrence and mechanism of formation, exposure/riskassessment and developments in the underpinning analyticalmethodology. A wide range of contaminants are examined in detail,including pyrrolizidine alkaloids, glucosinolates, phycotoxins, andmycotoxins. Several process contaminants (eg acrylamide and furan),which are relatively new but which have a rapidly growingliterature, are also covered. The book provides a practical reference for a wide range ofexperts: specialist toxicologists (chemists and food chemists),hygienists, government officials and anyone who needs to be awareof the main issues concerning toxicants and process contaminants infood. It will also be a valuable introduction to the subject forpost-graduate students.