1、Instrumental analysis,Gas Chromatography,GC,1.Basic principle and concept of chromatography 2. Qualitative and quantitative methods 3. The composition of the gas chromatograph 4. Optimize the operation condition 5. Application of GC in food analysis,Key points,Begins during the mid-19th century. ...
2.2.28._气相色谱Gas_chromatography 2.2.28.Gas chromatography EUROPEAN PHARMACOPOEIA 5.0 fluorescence is measured,a monochromatic filter is required in addition,to select a particular spectral region of the emitted light,—for substances containing radionuclides:a suitable counter for radioactivity.The ...
chromatographyextraction apparatusesorganic compoundsThese authors have investigated the feasibility of separation and quantitative determination of wet gas components in a packed capillary column in combination with a standard thermal conductivity detector. One chart plots the height of an equivalent theoretical...
食品分析(英文课件):GAS CHROMATOGRAPHY.ppt,Methods Conditions which can be varied to accommodate a required analysis include: the columns stationary phase, diameter and length inlet temperature detector temperature column temperature and temperature prog
This is the fiftieth anniversary of the first publication on what became simply known as GLC (gas-liquid chromatography). It is therefore appropriate to po... RG Ackman - 《Analytica Chimica Acta》 被引量: 228发表: 2002年 加载更多研究
A method for analyzing a gas mixture through gas chromatography, wherein a sample of the gas mixture is fed to a dosing volume using a metering valve in a first valve position and, in a second valve position the sample of the gas mixture is fed from the dosing volume through a separating...
1. A gas chromatography system for analyzing a sample, comprising: a gas chromatograph (GC) using hydrogen carrier gas and controlled by a GC controller; a hydrogen source supplying the hydrogen carrier gas to the GC; a communication link between the GC and the hydrogen source; and at least...
Gas chromatography is mainly composed of the following parts: Carrier gas in a high-pressure cylinder with attendant pressure regulators and flow meters Helium, N2, H, Argon are used as carrier gases. Helium is preferred for thermal conductivity detectors because of its high thermal conductivity rel...
GAS CHROMATOGRAPHY | Column Technology C.F. Poole, in Encyclopedia of Analytical Science (Second Edition), 2005 See also: GAS CHROMATOGRAPHY | Overview; GAS CHROMATOGRAPHY | Gas–Solid Chromatography; GAS CHROMATOGRAPHY | High-Temperature Techniques; GAS CHROMATOGRAPHY | Chiral Separations. View chapter...
Gaschromatography–massspectrometry(GC-MS)L/O/G/O GC-MStechnologybeganinthelate1950s.GChashighseparationefficiencyandquantitativeaccuracy.MShashighselectivity,strongresolutioncapabilityandcanprovideabundantinformation,determinethenatureofcompoundsconveniently.Itcombinestheircharacteristics.Structurechart GC MS Vacuum Int...