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| Author | : Gilbert Berben |
| Publisher | : |
| Total Pages | : 36 |
| Release | : 2014 |
| Genre | : |
| ISBN | : 9789279447051 |
Download Guidelines for Sample Preparation Procedures in GMO Analysis Book in PDF, ePub and Kindle
This document aims at providing guidelines for a correct sample preparation in GMO analysis on food, feed, seed, plants and propagating material samples. It has been developed by the European Network of GMO Laboratories (ENGL), specifically by the ENGL working group "sample preparation procedures" upon a mandate of the ENGL steering committee. The structure of the document is based on that of an existing ISO standard (ISO 6498:2012), dealing with sample preparation for feed; starting from this, the procedures were adapted to the needs of GMO detection and the scope concerning matrices was widen to food, feed and seeds. These guidelines cover the key steps of the sample preparation, i.e. the size of the laboratory sample, the mass reduction techniques as well as techniques for comminution and mixing; considerations about the test portion are included and some performance tests to be applied at different steps of the process are provided. While sample preparation, falling after sampling and before analytical testing for GMOs, has suffered from a lack of guidance and harmonization, this document provides detailed and practical hints on this important step, thus contributing to foster testing harmonisation.
| Author | : Gilbert Berben |
| Publisher | : |
| Total Pages | : 36 |
| Release | : 2014 |
| Genre | : |
| ISBN | : 9789279447044 |
Download Guidelines for Sample Preparation Procedures in GMO Analysis Book in PDF, ePub and Kindle
This document aims at providing guidelines for a correct sample preparation in GMO analysis on food, feed, seed, plants and propagating material samples. It has been developed by the European Network of GMO Laboratories (ENGL), specifically by the ENGL working group "sample preparation procedures" upon a mandate of the ENGL steering committee. The structure of the document is based on that of an existing ISO standard (ISO 6498:2012), dealing with sample preparation for feed; starting from this, the procedures were adapted to the needs of GMO detection and the scope concerning matrices was widen to food, feed and seeds. These guidelines cover the key steps of the sample preparation, i.e. the size of the laboratory sample, the mass reduction techniques as well as techniques for comminution and mixing; considerations about the test portion are included and some performance tests to be applied at different steps of the process are provided. While sample preparation, falling after sampling and before analytical testing for GMOs, has suffered from a lack of guidance and harmonization, this document provides detailed and practical hints on this important step, thus contributing to foster testing harmonisation.
| Author | : Markus Stoeppler |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 216 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 3642606326 |
Download Sampling and Sample Preparation Book in PDF, ePub and Kindle
The significant progress achieved in modern instrumental analysis has led to a continuous lowering of detection limits and improved precision. This should in principle permit the reliable and extremely precise analysis of trace compounds mainly trace elements, at levels down to the lowest natural concentrations. However, the frequently observed very high discrepancies between the analyt ical results of different laboratories as well as the deviations from true values are, regrettably, still common in analytical practice. Basic methodological errors at the determination step can usually be minimized or even avoided by carefully per formed quality control measures - e. g. by interlaboratory comparisons and the proper use of certified reference materials. The most severe and often under estimated error sources, however, are those connected with the whole and often extremely complex sampling process, and also to a lesser extent, with sample pre paration prior to analysis. Thus, for these initial steps of an analytical procedure particular experience is needed, as well as a detailed knowledge of the interrela tions between these steps, which always have to be applied with the utmost care. In collaboration with a number of very experienced colleagues working in dif book has tried to contribute to a better ferent research areas, the editor of this understanding of these particular error sources and how they can be overcome in a series of training courses held during the last decade at the "Haus der Technik", Essen, Germany.
| Author | : Oscar Núñez Burcio |
| Publisher | : Nova Publishers |
| Total Pages | : 0 |
| Release | : 2016 |
| Genre | : Food |
| ISBN | : 9781634850728 |
Download New Trends in Sample Preparation Techniques for Food Analysis Book in PDF, ePub and Kindle
Nowadays, there is a growing need for applications in food control and safety analysis to cope with the analysis of a large number of analytes in a very complex matrix. New analytical procedures are demanding sensitivity, robustness, effectiveness and high resolution within a reduced analysis time. Most of these requirements may be met to a certain extent by the total or partial automation of the conventional analytical methods, including sample preparation or sample pre-treatment coupled on-line to an analytical system. Despite the advances in chromatographic separations and mass spectrometry techniques, sample preparation is still one of the most important parts in any analytical method development and an effective sample preparation is essential for achieving good analytical results. Obviously, ideal sample preparation methods should be fast, accurate, precise and must keep sample integrity. For this reason, and over the last years, considerable efforts have been made to develop modern approaches in sample treatment techniques that enable the reduction of the analysis time without compromising the integrity of the extraction process. The aim of this book is to discuss new trends in sample preparation techniques applied to food analysis, and it will address not only the principles of each technique, but the most relevant applications in food control and safety analysis published over the few last years.
| Author | : Salah E. O. Mahgoub |
| Publisher | : CRC Press |
| Total Pages | : 288 |
| Release | : 2019-01-15 |
| Genre | : Health & Fitness |
| ISBN | : 135171385X |
Download Testing and Analysis of GMO-containing Foods and Feed Book in PDF, ePub and Kindle
An increasing number of genetically modified organisms (GMOs) continues to be produced every day. In response to the concerns raised by the development of GMOs and their incorporation in foods and feed, guidelines and regulations to govern and control the use of GMOs and their products have been enacted. These regulations necessitated the design of methods to detect and analyse the presence of GMOs or their products in agriculture produce, food and feed production chains. Design of techniques and instruments that would detect, identify, and quantify GM ingredients in food and feed will help inspection authorities to relay reliable information to consumers who might be concerned about the presence of GM ingredients. Information generated by detection of GMOs in food and feed would be helpful for setting regulations that govern the use of GM components as well as for labeling purposes. Qualitative detection methods of GM-DNA sequences in foods and feeds have evolved fast during the past few years. There is continuous need for the development of more advanced multi-detection systems and for periodic updates of the databases related to these systems. Testing and Analysis of GMO-containing Foods and Feed presents updates and comprehensive views on the various methods and techniques in use today for the detection, identification and quantification of GMOs in foods and feed. The eleven book chapters cover recent developments on sample preparation techniques, immunoassays methods and the PCR technique used in GMO analysis, the use of biosensors in relation to GMO analysis, the application of nucleic acid microarrays for the detection of GMOs, validation and standardization methods for GMO testing, in addition to the type of reference material and reference methods used in GMO testing and analysis. Some of the ISO standards designed for identifying and detecting the presence of GM material in foods are also presented in the book.
| Author | : Janusz Pawliszyn |
| Publisher | : Wiley-Blackwell |
| Total Pages | : 496 |
| Release | : 2010-10-26 |
| Genre | : Science |
| ISBN | : 9780470099346 |
Download Handbook of Sample Preparation Book in PDF, ePub and Kindle
Discover new keys to solving analytical problems using the Latest sample preparation methods Commonly viewed of as a routine task rather than as an integral component in the analytical process, sample preparation has long been undervalued as a science and underdeveloped as a technology. In an effort to reverse this trend, Handbook of Sample Preparation shows why sample preparation deserves closer scientific scrutiny, and makes a compelling case for colleges and professional laboratories to devote more resources to promote the benefits of its correct application. Handbook of Sample Preparation includes: A solid overview of standard sampling methodologies and their analytical capabilities An introduction of non-traditional sampling technologies, which address the need for solvent-free alternatives, automation, and miniaturization A discussion of the analytical shift toward performing sampling on-site, rather than in the laboratory An examination of various extraction technologies and their applications for different types of matrices A look at how to take advantage of new sampling strategies to streamline laboratory procedures, reduce research costs, and increase overall productivity An excellent primer on the fundamentals of extraction as well as a sound guide on the latest technological upgrades influencing current sampling techniques, this versatile text serves as an important and accessible tool for both students and seasoned practitioners as they seek new avenues for improving the accuracy of their analyses.
| Author | : John Maclane |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 250 |
| Release | : 2017-06-06 |
| Genre | : |
| ISBN | : 9781548034979 |
Download New Trends in Sample Preparation Techniques for Food Analysis Book in PDF, ePub and Kindle
One of the most important challenges in modernfood analysis is the research of new reliable sample preparationmethods. In fact, traditional and automated procedurescan ensure reliable results on condition that sample pretreatmentmethods are fast, accurate, precise, and able to maintainthe integrity of extraction processes. The book New trends insample preparation techniques for food analysis, editedby Oscar N��ez and Paolo Lucci, describes the currentstate of art of sample pretreatment systems in the fieldof food analysis.Contents The book is subdivided into seven chapters with afive-page detailed preface providing a preliminary discussionabout extraction procedures. The first chapter concerns newtrends in solid-phase extraction (SPE) analyses and innovativesorbent chemicals. The book considers new molecularlyimprinted polymers for SPE systems in Chap. 2, with relationto synthetic processes and practical examples. Chapter 3 isdedicated to turbulent flow chromatography and related applicationsfor food analyses (trace elements, contaminants).Subsequently, the discussion concerns new analytical applicationsfor food matrices: QuEChERS (Chap. 4) andmicroextraction methods for simple and inexpensive separations(Chap. 5). Chapter 6 is completely dedicated toionic liquids as an essential component of sample preparationfor the determination of metals and organicchemicals in food matrices. The final chapter discussesthe current state of art of supercritical fluid extractionfor different analytical purposes.
| Author | : Markus Stoeppler |
| Publisher | : |
| Total Pages | : 220 |
| Release | : 1997-03-18 |
| Genre | : |
| ISBN | : 9783642606335 |
Download Sampling and Sample Preparation Book in PDF, ePub and Kindle
| Author | : Miodrag Micic |
| Publisher | : Humana |
| Total Pages | : 0 |
| Release | : 2016-01-29 |
| Genre | : Science |
| ISBN | : 9781493931842 |
Download Sample Preparation Techniques for Soil, Plant, and Animal Samples Book in PDF, ePub and Kindle
The Sample Preparation Techniques for Environmental, Plant, and Animal Samples handbook is a collection of best practices, recipes and theoretical information aimed at anyone who works with any type of molecular biology, proteomics, or metabolomics research involving diffi cult and tough-to-process samples, and thus is exposed to the seemingly unbreakable bottleneck of sample preparation. Th is book is most useful to researchers preparing nucleic acids and proteins from environmental (e.g., soil, marine, and wastewater, feces) and tough microbiological (e.g., spores, yeasts, gram positive bacteria) samples, as well as solid tissue samples from plants and animals. This book is the first comprehensive piece of literature dealing with applications of bead beating technology and other types of mechanical homogenization sample preparation.
| Author | : Salah E. O. Mahgoub |
| Publisher | : CRC Press |
| Total Pages | : 329 |
| Release | : 2019-01-15 |
| Genre | : Health & Fitness |
| ISBN | : 0429685327 |
Download Testing and Analysis of GMO-containing Foods and Feed Book in PDF, ePub and Kindle
An increasing number of genetically modified organisms (GMOs) continues to be produced every day. In response to the concerns raised by the development of GMOs and their incorporation in foods and feed, guidelines and regulations to govern and control the use of GMOs and their products have been enacted. These regulations necessitated the design of methods to detect and analyse the presence of GMOs or their products in agriculture produce, food and feed production chains. Design of techniques and instruments that would detect, identify, and quantify GM ingredients in food and feed will help inspection authorities to relay reliable information to consumers who might be concerned about the presence of GM ingredients. Information generated by detection of GMOs in food and feed would be helpful for setting regulations that govern the use of GM components as well as for labeling purposes. Qualitative detection methods of GM-DNA sequences in foods and feeds have evolved fast during the past few years. There is continuous need for the development of more advanced multi-detection systems and for periodic updates of the databases related to these systems. Testing and Analysis of GMO-containing Foods and Feed presents updates and comprehensive views on the various methods and techniques in use today for the detection, identification and quantification of GMOs in foods and feed. The eleven book chapters cover recent developments on sample preparation techniques, immunoassays methods and the PCR technique used in GMO analysis, the use of biosensors in relation to GMO analysis, the application of nucleic acid microarrays for the detection of GMOs, validation and standardization methods for GMO testing, in addition to the type of reference material and reference methods used in GMO testing and analysis. Some of the ISO standards designed for identifying and detecting the presence of GM material in foods are also presented in the book.
