Chemical analyses are used in conjunction with biological and physical parameters to characterize the quality and understand the chemical evolution of fresh water. Standardized analytical methods allow the integration of data collected on disparate waterbodies, regardless of geographic location. Analytical chemistry consists of classical, wet chemical methods and modern, instrumental methods. Classical qualitative methods use separations such as precipitation, extraction, and distillation. Identification may be based on differences in color, odor, melting point, boiling point, radioactivity or reactivity.
Chemical analysis - Chemical analysis - Classical methods: The majority of the classical analytical methods rely on chemical reactions to perform an analysis. In contrast, instrumental methods typically depend on the measurement of a physical property of the analyte. Classical qualitative analysis is performed by adding one or a series of chemical reagents to the analyte. By observing the chemical reactions and their products, one can deduce the identity of the analyte. Physical Methods in Chemical Analysis, Volume III focuses on the application of physical methods in chemical analysis, including chromatography, spectroscopy, nuclear magnetic resonance, and photometry. The selection first offers information on gas chromatography, electrochromatography, and electroanalytical methods in trace analysis. Quantitative Chemical Analysis Element Analysis, Trace Metal Analysis & More. Quantitative Chemical Analysis or quantitative chemistry is performed at Laboratory Testing Inc. to accurately determine the concentration, amount or percentage of one or more elements in a test sample.