Speciation analysis is a field of trace element analytical chemistry that deals with detection, identification and determination of individual chemical forms of metals and metalloids. There has been increased awareness of the importance of elemental speciation over the last 20 years and this has lead to growing demand for analytical techniques capable of providing species-specific information. Hyphenated Techniques in Speciation Analysis offers a brief but comprehensive overview of hyphenated techniques and their various applications for the determination of chemical forms of trace elements. It brings a succinct presentation of the concept of speciation analysis, gives an overview of techniques based on coupling of chromatography with element and molecule specific detection and summarises their applications in the fields of environmental and industrial chemistry, biochemistry, nutrition, toxicology and medicine. Fully referenced, Hyphenated Techniques in Speciation Analysis is an invaluable introduction to elemental speciation analysis and also provides a practising analyst with a critical overview of research carried out in the field.
Analytical methods, that combine a chemical sample treatment step with a spectrometric technique, applied to the determination of metals and metalloids at trace and ultratrace levels are discussed in this book. A thorough critical survey of the literature for the period 1985-1994 gives references to source articles always readily available in peer reviewed journals. The book comprises three parts. Part I discusses general aspects of successive steps of an analytical procedure from sampling and sample decomposition, through separation and preconcentration to spectrometric determination. Flow injection analysis, hyphenated techniques and speciation are included. Accuracy in trace analysis, sources of errors and the role of CRMs are also covered. Part II is devoted to practical aspects of sample handling and multielement trace analyses of environmental, geological, clinical, and industrial materials. Each chapter contains several tables summarizing procedures for multielement analysis of real samples and certified reference materials available for method validation. Part III contains 54 alphabetically arranged monographic reviews on spectrochemical trace analysis for individual elements. Each chapter gives basic information on analytico-chemical properties of the element which is followed by an overview of methods for its separation, preconcentration, and instrumental detection. Particular attention is given to practical issues, difficulties and quality assurance during the analysis of real samples. Each chapter contains tables summarizing the key steps of the procedures developed for the trace element determination and the detection characteristics reported.
Speciation analysis is a field of trace element analytical chemistry that deals with detection, identification and determination of individual chemical forms of metals and metalloids. There has been increased awareness of the importance of elemental speciation over the last 20 years and this has lead to growing demand for analytical techniques capable of providing species-specific information. Hyphenated Techniques in Speciation Analysis offers a brief but comprehensive overview of hyphenated techniques and their various applications for the determination of chemical forms of trace elements. It brings a succinct presentation of the concept of speciation analysis, gives an overview of techniques based on coupling of chromatography with element and molecule specific detection and summarises their applications in the fields of environmental and industrial chemistry, biochemistry, nutrition, toxicology and medicine. Fully referenced, Hyphenated Techniques in Speciation Analysis is an invaluable introduction to elemental speciation analysis and also provides a practising analyst with a critical overview of research carried out in the field.
Ryszard Kapuscinski is widely regarded as one of the twentieth century's preeminent journalists, demonstrating an almost mystical ability to discover the odd or overlooked and incorporating these sometimes surreal details into narratives that go beyond mere reportage and enter the realm of literature. Another Day of Life" is Kapuscinski's dramatic account of the three months he spent in Angola at the beginning of its decades' long civil war. The capital, Luanda, is occupied only by those not fortunate enough to flee. When even the dogs abandoned by the Europeans leave, Kapuscinski decides to go to the front, where the wrong greeting could cost your life and where young soldiers-from Cuba, Russia, South Africa, Portugal-are fighting a war with global repercussions. With harrowing detail, Kapuscinski shows us the peculiar brutality of a country divided by its newfound freedom. Translated from the Polish by William R. Brand and Katarzyna Mroczkowska-Brand.
Quand Ryszard Kapuscinski arrive comme journaliste en 1958 à Accra, la capitale du Ghana, il ne peut soupçonner que ce voyage sera le début d'une passion qui ne le quittera plus jamais. Pendant des années, ce grand reporter doublé d'un écrivain sillonne le continent noir, habite les quartiers des Africains, s'expose à des conditions de vie qu'aucun correspondant occidental n'aurait acceptées. Observateur exceptionnel, il croise des potentats comme Nkrumah, Kenyatta ou Idi Amin, témoigne de coups d'Etat et de guerres civiles ; il essuie des fusillades, affronte des tempêtes de sable et supporte l'indescriptible chaleur africaine. Mais Kapuscinski s'intéresse surtout aux gens et sait gagner leur confiance. Le tumulte de la vie quotidienne africaine le passionne davantage que les corruptions, les épidémies et les guerres meurtrières. Ce livre majeur, attendu depuis longtemps, a reçu en 2000 le prestigieux prix littéraire italien Viareggio.
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