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- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/12%3A_Chromatographic_and_Electrophoretic_Methods/12.08%3A_ProblemsThis page presents a comprehensive set of problems in chromatography and capillary zone electrophoresis (CZE). Key topics include calculating theoretical plates, resolving power, chromatographic resol...This page presents a comprehensive set of problems in chromatography and capillary zone electrophoresis (CZE). Key topics include calculating theoretical plates, resolving power, chromatographic resolution, retention indices, ion balances, and evaluating chromatographic data for various compounds. Problems engage chemical principles such as pH impact, calibration curves, and the Van Deemter equation.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Instrumental_Analysis_(LibreTexts)/27%3A_Gas_Chromatography/27.04%3A_Applications_of_Gas-Liquid_ChromatographyGas chromatography is widely used for the quantitative analysis of a diverse array of samples in environmental, clinical, pharmaceutical, biochemical, forensic, food science and petrochemical laborato...Gas chromatography is widely used for the quantitative analysis of a diverse array of samples in environmental, clinical, pharmaceutical, biochemical, forensic, food science and petrochemical laboratories. It also finds use for qualitative analyses, although these are less common.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/12%3A_Chromatographic_and_Electrophoretic_Methods/12.04%3A_Gas_ChromatographyGas chromatography (GC) is a technique in which a sample, either gas or liquid, is injected into a mobile phase, usually a chemically inert gas like He, Ar, or N2, which carries it through a column. I...Gas chromatography (GC) is a technique in which a sample, either gas or liquid, is injected into a mobile phase, usually a chemically inert gas like He, Ar, or N2, which carries it through a column. In a packed column, larger samples can be handled, whereas capillary columns allow separation of more complex mixtures. Elution order in gas-liquid chromatography depends on solutes' boiling points and interactions with the stationary phase.
- https://chem.libretexts.org/Courses/Lakehead_University/Analytical_I/5%3A_Standardizing_Analytical_Methods/5.3%3A_Determining_the_SensitivityTo standardize an analytical method we also must determine the value of kA . In principle, it should be possible to derive the value of kA for any analytical method by considering the chemi...To standardize an analytical method we also must determine the value of kA . In principle, it should be possible to derive the value of kA for any analytical method by considering the chemical and physical processes generating the signal. Unfortunately, such calculations are not feasible when we lack a sufficiently developed theoretical model of the physical processes, or are not useful because of nonideal chemical behavior.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Instrumental_Analysis_(LibreTexts)/01%3A_Introduction/1.05%3A_Calibration_of_Instrumental_MethodsTo standardize an analytical methods we need to determine its sensitivity, which relates the signal to the analyte's concentration. There are three general calibration strategies that are outlined her...To standardize an analytical methods we need to determine its sensitivity, which relates the signal to the analyte's concentration. There are three general calibration strategies that are outlined here: external standards, standard additions, and internal standards.
- https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Analytical_Chemistry/2%3A_Analytical_Chemistry_2.0_(Harvey)/06%3A_Standardizing_Analytical_Methods/6.3%3A_Determining_the_SensitivityTo standardize an analytical method we also must determine the value of kA . In principle, it should be possible to derive the value of kA for any analytical method by considering the chemi...To standardize an analytical method we also must determine the value of kA . In principle, it should be possible to derive the value of kA for any analytical method by considering the chemical and physical processes generating the signal. Unfortunately, such calculations are not feasible when we lack a sufficiently developed theoretical model of the physical processes, or are not useful because of nonideal chemical behavior.
