Food Toxicants Analysis: Techniques, Strategies and Developments

Front Cover
Yolanda Picó
Elsevier, Feb 7, 2007 - Technology & Engineering - 786 pages
Food Toxicants Analysis covers different aspects from the field of analytical food toxicology including emerging analytical techniques and applications to detect food allergens, genetically modified organisms, and novel ingredients (including those of functional foods). Focus will be on natural toxins in food plants and animals, cancer modulating substances, microbial toxins in foods (algal, fungal, and bacterial) and all groups of contaminants (i.e., pesticides), persistent organic pollutants, metals, packaging materials, hormones and animal drug residues. The first section describes the current status of the regulatory framework, including the key principles of the EU food law, food safety, and the main mechanisms of enforcement. The second section addresses validation and quality assurance in food toxicants analysis and comprises a general discussion on the use of risk analysis in establishing priorities, the selection and quality control of available analytical techniques. The third section addresses new issues in food toxicant analysis including food allergens and genetically modified organisms (GMOs). The fourth section covers the analysis of organic food toxicants.

* step-by-step guide to the use of food analysis techniques* eighteen chapters covering emerging fields in food toxicants analysis* assesses the latest techniques in the field of inorganic analysis

From inside the book

Contents

Chapter 12 Gas chromatographymass spectrometry GCMS
419
Chapter 13 Liquid chromatography with conventional detection
475
Chapter 14 Liquid chromatographymass spectrometry
509
Chapter 15 Capillary electrophoresis
561
Chapter 16 Sensor biosensors and MIP based sensors
599
Chapter 17 Atomic Absorption Spectroscopy
637
Chapter 18 Electrochemical stripping analysis of trace and ultratrace concentrations of toxic metals and metalloids in foods and beverages
667
Chapter 19 Inductively coupled plasma mass spectrometry
697

Chapter 9 Extraction procedures
269
Chapter 10 Cleanup and fractionation methods
299
Chapter 11 Automated clean up techniques
349
Index
753
Copyright

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Page 68 - An analytical result is described as 'well behaved' when it complies with this condition. An absolute value of z (|z|) greater than three suggests poor performance in terms of accuracy. This judgement depends on the assumption of the normal distribution, which, outliers apart, seems to be justified in practice. As z is standardised, it is comparable for all analytes and methods. Thus values of z can be combined to give a composite score for a laboratory in one round of a proficiency test. The z-scores...
Page 1 - The food standards, guidelines, and other recommendations of Codex Alimentarius shall be based on the principle of sound scientific analysis and evidence...
Page 4 - ... expected to result (directly or indirectly) in it or its by-products becoming a component of or otherwise affecting the characteristics of such foods. The term does not include "contaminants...
Page 1 - Programme is to protect the health of consumers and to ensure fair practices in the food trade; to promote coordination of all food standards work undertaken by international governmental and non-governmental...
Page 88 - Uncertainty of measurement comprises, in general, many components. Some of these components may be evaluated from the statistical distribution of the results of series of measurements and can be characterized by experimental standard deviations. The other components, which can also be characterized by standard deviations, are evaluated from assumed probability distributions based on experience or other information.
Page 88 - B.1 8 uncertainty (of measurement) a parameter, associated with the result of a measurement, that characterizes the dispersion of the values that could reasonably be attributed to the measurand (NOTES — 1.
Page 1 - State where, in view, on the one hand, of the findings of international scientific research, and in particular of the work of the Community's Scientific Committee for Food, the Codex Alimentarius Committee of the Food and Agriculture Organization of the United Nations (FAO) and the World Health Organization...
Page 73 - ... value. This illustrates the need for the (sampling and) analysis provisions in a standard to be developed at the same time as the numerical value of the characteristics in the standard are negotiated to ensure that the characteristics are related to the methodological procedures prescribed. Precision. Precision is defined as the closeness of agreement between independent test results obtained under prescribed conditions (ISO, 1992).
Page 60 - Multivariate IQC. Multivariate methods in IQC are still the subject of research and cannot be regarded as sufficiently established for inclusion in the guidelines. The current document regards multianalyte data as requiring a series of univariate IQC tests. Caution is necessary in the interpretation of this type of data to avoid inappropriately frequent rejection of data.
Page 73 - Accuracy is defined as the closeness of the agreement between the result of a measurement and a true value of the measureand.18 It may be assessed with the use of reference materials.

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