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Author: Markus Stoeppler
Publisher: John Wiley & Sons
ISBN: 3527613056
Category : Science
Languages : de
Pages : 322
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Book Description
There are many academic references describing how RMs are made, but few that explain why they are used, how they should be used and what happens when they are not properly used. In order to fill this gap, the editors have taken the contributions of more than thirty RM practitioners to produce a highly readable text organized in nine chapters. Starting with an introduction to historical, theoretical and technical requirements, the book goes on to examine all aspects of RM production from planning, preparation through analysis to certification, reviews recent development areas, RMs for life analysis and some important general application fields, considers the proper usage of RMs, gives advice on availability and sources of information and lastly looks at future trends and needs for RMs. This book is intended to be a single point of information that both guides the reader through the use of RMs and serves as a primary reference source. It should be on the reading list of anyone working in an analytical laboratory and be found on the library shelf of all analytical chemical laboratories.
Author: Markus Stoeppler
Publisher: John Wiley & Sons
ISBN: 3527613056
Category : Science
Languages : de
Pages : 322
Get Book
Book Description
There are many academic references describing how RMs are made, but few that explain why they are used, how they should be used and what happens when they are not properly used. In order to fill this gap, the editors have taken the contributions of more than thirty RM practitioners to produce a highly readable text organized in nine chapters. Starting with an introduction to historical, theoretical and technical requirements, the book goes on to examine all aspects of RM production from planning, preparation through analysis to certification, reviews recent development areas, RMs for life analysis and some important general application fields, considers the proper usage of RMs, gives advice on availability and sources of information and lastly looks at future trends and needs for RMs. This book is intended to be a single point of information that both guides the reader through the use of RMs and serves as a primary reference source. It should be on the reading list of anyone working in an analytical laboratory and be found on the library shelf of all analytical chemical laboratories.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309182786
Category : Science
Languages : en
Pages : 146
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Book Description
The accuracy of chemical oceanographic measurements depends on calibration against reference materials to ensure comparability over time and among laboratories. Several key parameters lack reference materials for measurements in seawater, particles in the water column, and sediments. Without reference materials it is difficult to produce the reliable data sets or long-term baseline studies that are essential to verify global change and oceanic stability. Chemical Reference Materials : Setting the Standards for Ocean Science identifies the most urgently required chemical reference materials based on key themes for oceanographic research and provides suggestions as to how they can be developed within realistic cost constraints. Chemical analyses of seawater are uniquely difficult given the poorly known speciation and the low concentration of many of the analytes of interest. Analyses of suspended and sedimentary marine particulate materials present their own distinct challenges, primarily due to potential interference by predominant mineral phases of different types. Of all the analytical methods applied to marine waters and particles, at present only a small fraction can be systematically evaluated via comparison to reference materials that represent the appropriate natural concentrations and matrices. Specifically, the committee was charged with the following tasks: - compile from available sources a list of important oceanographic research questions that may benefit from chemical reference standards; - create a comprehensive list of reference materials currently available for oceanographic studies; - identify and prioritize the reference materials needed to study the identified research questions; - determine for each priority analyte whether reference materials and/or analytic methods should be standardized; and - identify the most appropriate approaches for the development and future production of reference materials for ocean sciences.
Author: A. Zschunke
Publisher: Springer Science & Business Media
ISBN: 3642569862
Category : Technology & Engineering
Languages : en
Pages : 224
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Book Description
Under the guidance of the German Federal Institute for Materials Research (BAM), the standards for fabrication and application of reference materials are presented here in comprehensive form. The areas covered are analytical chemistry, materials science, environmental analysis, clinical and forensic toxicological analysis, and gas and food analysis. A standard reference for every analytical laboratory.
Author: American Chemical Society
Publisher: Acs Professional Reference Boo
ISBN: 9780841230453
Category : Science
Languages : en
Pages : 0
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Book Description
The American Chemical Society (ACS) Committee on Analytical Reagents sets the specifications for most chemicals used in analytical testing. Currently, the ACS is the only organization in the world that sets requirements and develops validated methods for determining the purity of reagent chemicals. These specifications have also become the de facto standards for chemicals used in many high-purity applications. Publications and organizations that set specifications or promulgate analytical testing methods-such as the United States Pharmacopeia and the U.S. Environmental Protection Agency-specify that ACS reagent-grade purity be used in their test procedures. The Eleventh Edition incorporates the "supplements" accumulated over the past eight years, removes some obsolete test methods, improves instructions for many existing ones, and also introduces some new methods. Overall, the safety, accuracy, or ease of use in specifications for about 70 of the 430 listed reagents has been improved, and seven new reagents have been added.
Author: John K. Taylor
Publisher: DIANE Publishing
ISBN: 9780788144851
Category :
Languages : en
Pages : 122
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Book Description
This handbook was prepared with the objective of improving the understanding of the basis for the use of Standard Reference Materials (SRMs). While written from the viewpoint of a chemist, the basic concepts described are believed to be applicable to most areas of metrology. The handbook is arranged by section in a logical progression, starting with the basic concepts of precision & accuracy, followed by discussions of the calibration & quality assurance of the measurement process, the use of SRMs to evaluate various kinds of measurements, & the reporting of data with evaluated limits of uncertainty. Charts & tables.
Author: Sam Stuart
Publisher: Elsevier
ISBN: 1483140229
Category : Science
Languages : en
Pages : 15
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Book Description
Physicochemical Measurements: Catalogue of Reference Materials from National Laboratories offers information on chemicals, including their density, magnetic susceptibility, calorimetry, molecular conductance, and thermal conductivity. The catalog first offers information on acidimetry, calorimetry, and spectrophotometry and tristimulus colorimetry. The chemicals examined include potassium hydrogen, boric and benzoic acids, heptane, neopentane, and aluminum oxide. The text then presents data on density, dielectric constants, differential thermal analysis, magnetic susceptibility, and molar conductance. The chemicals evaluated include cyclohexane, kerosene, toluene, chlorobenzene, carbon tetrachloride, potassium nitrate, indium, tin, aluminum, platinum, and potassium chloride. The book discusses the molecular weight of polymers, refractive index, relative humidity, specular spectral reflectance, and surface tension. The text also takes a look at thermal conductivity and emissivity and vapor pressure. The catalog is a dependable reference for readers interested in the composition, characteristics, and reactions of chemicals.
Author: A. Zschunke
Publisher:
ISBN: 9783642569876
Category :
Languages : en
Pages : 244
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Book Description
Author: Helmut Günzler
Publisher: Springer Science & Business Media
ISBN: 364250079X
Category : Science
Languages : en
Pages : 279
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Book Description
Quality assurance and accreditation in analytical chemistry laboratories is an important issue on the national and international scale. The book presents currently used methods to assure the quality of analytical results and it describes accreditation procedures for the mutual recognition of these results. The book describes in detail the accreditation systems in 13 European countries and the present situation in the United States of America. The editor also places high value on accreditation and certification practice and on the relevant legislation in Europe. The appendix lists invaluable information on important European accreditation organizations.
Author: A. Zschunke
Publisher: Springer Science & Business Media
ISBN: 9783540667766
Category : Technology & Engineering
Languages : en
Pages : 248
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Book Description
Under the guidance of the German Federal Institute for Materials Research (BAM), the standards for fabrication and application of reference materials are presented here in comprehensive form. The areas covered are analytical chemistry, materials science, environmental analysis, clinical and forensic toxicological analysis, and gas and food analysis. A standard reference for every analytical laboratory.
Author: E.A. Maier
Publisher: Elsevier
ISBN: 9780080534886
Category : Science
Languages : en
Pages : 557
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Book Description
The participation in interlaboratory studies and the use of Certified Reference Materials (CRMs) are widely recognised tools for the verification of the accuracy of analytical measurements and they form an integral part of quality control systems used by many laboratories, e.g. in accreditation schemes. As a response to the need to improve the quality of environmental analysis, the European Commission has been active in the past fifteen years, through BCR activity (now renamed Standards, Measurements and Testing Programme) in the organisation of series of interlaboratory studies involving expert laboratories in various analytical fields (inorganic, trace organic and speciation analysis applied to a wide variety of environmental matrices). The BCR and its successor have the task of helping European laboratories to improve the quality of measurements in analytical sectors which are vital for the European Union (biomedical, agriculture, food, environment and industry); these are most often carried out in support of EC regulations, industrial needs, trade, monitoring activities (including environment, agriculture, health and safety) and, more generally, when technical difficulties hamper a good comparability of data among EC laboratories. The collaborative projects carried out so far have placed the BCR in the position of second world CRM producer (after NIST in the USA). Interlaboratory Studies and Certification of Reference Materials for Environmental Analysis gives an account of the importance of reference materials for the quality control of environmental analysis and describes in detail the procedures followed by BCR to prepare environmental reference materials, including aspects related to sampling, stabilization, homogenisation, homogeneity and stability testing, establishment of reference (or certified) values, and use of reference materials. Examples of environmental CRMs produced by BCR within the last 15 years are given, which represent more than 70 CRMs covering different types of materials (plants, biological materials, waters, sediments, soils and sludges, coals, ash and dust materials) certified for a range of chemical parameters (major and trace elements, chemical species, PAHs, PCBs, pesticides and dioxins). The final section of the book describes how to organise improvement schemes for the evaluation method and/or laboratory performance. Examples of interlaboratory studies (learning scheme, proficiency testing and intercomparison in support to prenormative research) are also given.
