Principles and practice of analytical chemistry by F. W., Kealey, David Fifield

By F. W., Kealey, David Fifield

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37) Discuss the relationship between the hierarchies of Fig. 15. (38) Same, with regard to Figs. 18. (39) State several incorrect uses of the words "technique" and "method". (40) Same, with regard to "analysis" and "determination". (41) Same, with reference to "instrument" and "apparatus". (42) Summarize and discuss suggested reading no. 6. (43) Based on suggested reading no. 7, expand on the concept "analytical quality". (44) Based on Fig. 17 and suggested reading no. 9, discuss the significance of communication in Analytical Chemistry.

7. The word "object" has a more specific meaning here than in Sect. 1. One should also distinguish analysis, determination and measurement. Analysis refers to the sample, determination to the measurands or analytes, and measurement to a property of the measurands (or their reaction products, for example). Consequently, a sample is analysed, an analyte is determined and one or more of their physico-chemical properties are measured. 18. 11 Quantity Measurand I Analyte It is interesting to distinguish the following three terms, wh ich can be ranked with respect to one another: Quantity: An attribute of a phenomenon, object or substance that can be distinguished qualitatively and determined quantitatively.

100 M. 1 Introduction In broad terms, "quality" is defined as the totality of features (properties, attributes, capabilities) of an entity that make it equal to, better or worse than others of the same kind. Analytical quality materializes in various properties that are ultimately used as quality indicators. Such indicators allow one to assess, compare and validate various basic and applied facets of Analytical Chemistry in a well-founded, efficient manner.

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