Combining and Reporting Analytical Results RSC [Hardcover]

Reliable and metrologically comparable results of quantitative analytical methods are essential to assure that decisions taken on their basis have meaning and context. Problems with combining measurement results, calculating their uncertainties and establishing metrological traceability can prove complicated and ambiguous for measurement scientists. Combining and Reporting Analytical Results discusses in detail the problems faced by scientists, and presents a variety of approaches across biological, chemical and environmental sciences to resolving these types of issues. Topics include: validated methods of analysis; application of internal quality control procedures; participation in proficiency testing schemes; metrological traceability of measurement results and associated uncertainties, as well as some quality system issues and formal accreditation. Written by leading experts, and with worked examples and illustrations throughout, this invaluable reference source is ideal for analysts from various scientific fields. ...the book is highly recommended. ...represents an excellent view of this subject. Preface; Environmental Metrology: the Italian Approach; Comparability and Quality of Experimental Data Under Different Quality Systems; The Role of Traceability in Sustainable Development - the UNIDO Approach; Combination of Results from Several Measurements - An Everlasting Problem; Quality Assurance of Chemical Measurements - Metrological or Management Effort; Metrological Characteristics of the Conventional Measurement Scales for Hydrogen and Oxygen Stable Isotope Amount Ratios - The ?-Scales; Experience with Metrological Traceability and Measurement Uncertainty in Clinical Chemistry; Traceability of pH in a Metrological Context; Determination of PCBs in Organic Solutions: An Example of Traceability Chain; Quality Control of pH Measurements Considering Activity and Concentration Scales - Uncertainty Budget of Primary and Secondary Apparatuses; Metrology in Complex lC±