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发表于 2025-3-23 11:45:25
Jörg Dittrich,Peter Mertens,Andreas Hufgards for and from industry has become the most important application of analytical chemistry . Gas chromatography is a popular tool in these analyses, giving in a single experiment the concentrations of many impurities in a sample.
Irascible
发表于 2025-3-23 17:31:41
Jörg Dittrich,Peter Mertens,Andreas Hufgarde separation of such compounds as can be vaporized without decomposition . Thus, gas chromatography cannot be used directly for the separation of nonvolatile, high-molecular-weight compounds; its application is limited to volatile compounds having a vapor pressure of at least several millimeter
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发表于 2025-3-23 20:47:12
Introduction,hromatography, preparative chromatography, stage chromatography, etc. In comparison with the classical variations of gas-liquid partition chromatography developed by James and Martin , all of these directions are characterized by the new use of some physical-variable parameter such as temperature, column diameter, etc.
Generalize
发表于 2025-3-24 01:50:30
Some Problems in the Theory of Analytical Reaction Gas Chromatography,cesses of analytical reaction chromatography are characterized not only by the usual parameters for chromatographic separation (number of theoretical plates, retention values, etc.), but also by the parameters of the chemical reaction (rate constant, activation energy, reaction orders, etc.).
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发表于 2025-3-24 02:52:23
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Euphonious
发表于 2025-3-24 09:50:24
Analysis of Impurities,s for and from industry has become the most important application of analytical chemistry . Gas chromatography is a popular tool in these analyses, giving in a single experiment the concentrations of many impurities in a sample.
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发表于 2025-3-24 12:25:08
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FLASK
发表于 2025-3-24 18:44:45
Professional Teaching Dispositionshromatography, preparative chromatography, stage chromatography, etc. In comparison with the classical variations of gas-liquid partition chromatography developed by James and Martin , all of these directions are characterized by the new use of some physical-variable parameter such as temperature, column diameter, etc.
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发表于 2025-3-24 20:22:07
Dispositions in Teacher Educationcesses of analytical reaction chromatography are characterized not only by the usual parameters for chromatographic separation (number of theoretical plates, retention values, etc.), but also by the parameters of the chemical reaction (rate constant, activation energy, reaction orders, etc.).
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发表于 2025-3-25 00:34:51
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