Search results
Results from the WOW.Com Content Network
Analytical chemistry consists of classical, wet chemical methods and modern analytical techniques. [2] [3] Classical qualitative methods use separations such as precipitation, extraction, and distillation. Identification may be based on differences in color, odor, melting point, boiling point, solubility, radioactivity or reactivity.
Importance: The book was one of the first to describe a modern atomic theory, a theory that lies at the basis of modern chemistry. [3]: 251 It is the first to introduce a table of atomic and molecular weights.
A quantitative, analytical method for trace analysis of anions. A positive potential is applied, oxidizing the mercury electrode and forming insoluble precipitates of the anions. A negative potential then reduces (strips) the deposited film into solution. [15] Adsorptive stripping voltammetry: A quantitative, analytical method for trace analysis.
Instrumental analysis is a field of analytical chemistry that investigates analytes using scientific instruments. Block diagram of an analytical instrument showing the stimulus and measurement of response
Electroanalytical methods are a class of techniques in analytical chemistry which study an analyte by measuring the potential and/or current in an electrochemical cell containing the analyte.
Bioanalysis is a sub-discipline of analytical chemistry covering the quantitative measurement of xenobiotics (drugs and their metabolites, and biological molecules in unnatural locations or concentrations) and biotics (macromolecules, proteins, DNA, large molecule drugs, metabolites) in biological systems.
Matrix enhancement and suppression is frequently observed in modern analytical routines, such as GC, HPLC, and ICP. Matrix effect is quantitated by the use of the following formula: M E = 100 ( A ( e x t r a c t ) A ( s t a n d a r d ) ) {\displaystyle ME=100\left({\frac {A(extract)}{A(standard)}}\right)}
Izaak Maurits (Piet) Kolthoff (February 11, 1894 – March 4, 1993) was an analytical chemist and chemistry educator.He is widely considered the father of analytical chemistry for his large volume of published research in diverse fields of analysis, his work to modernize and promote the field, and for advising a large number of students who went on to influential careers of their own.