Chromatography & Mass Spectrometry
The Operation Points, Common Problems, and Solutions of Ion Chromatography
Although there are many kinds of ion chromatography on the market, its structure mainly includes five parts: pumping system, sampling system, chromatographic separation column, detector, and data processing. We pay attention to the maintenance of the instrument during its use and operation, to master the ion chromatography analysis technology. Now take the ion chromatograph as an…
7 Tips For Gas Chromatographs
Gas chromatographs are widely used in the petroleum, chemical industry, biochemistry, medicine and health, food industry, environmental protection, and so on. In addition to being used for quantitative and qualitative analysis, it can also determine the physical and chemical constants such as the distribution coefficient, activity coefficient, molecular weight, and specific surface area of the…
Some Facts About High Performance Liquid Chromatography
High-performance liquid Chromatography (HPLC) is an efficient and rapid analytical separation technique and an important means of modern separation testing. High performance liquid chromatography has a wide range of applications and a wide range of applicability to samples. It is not limited by the volatility and thermal stability of the analytical object. Almost all compounds…
What is GCMS (Gas Chromatograph and Mass Spectrometry)?
GCMS (Gas Chromatograph and Mass Spectrometry) is widely used in the separation and identification of complex components, which has a high resolution of GC and the high sensitivity of mass spectrometry. GCMS is mainly composed of the following parts: chromatographic, gas interface, mass spectrometer part (ion source, mass analyzer, detector), and data processing system. Gas-mass spectrometry (GCMS) is…
Troubleshooting of High Performance Liquid Chromatography (HPLC)
There are many test instruments used in the laboratory, and high-performance liquid chromatography (HPLC) is one of them. The instrument is based on classical chromatography, citing the theory of gas chromatography, and technically it changes the traditional mobile phase to high-pressure delivery. This article will introduce the principle and application, characteristics, failure causes, and treatment…
Is Ion Chromatography (IG) the Best Chromatograph?
Ion Chromatography is a type of high-performance liquid chromatography (HPLC), which is a liquid chromatography method for analyzing anions and cations. Like HPLCIC exploits the inherent affinity of ion pairs for the “eluent” (usually buffered water) and the “stationary phase” (porous solid support with charged functional groups). In a narrow sense, ion chromatography is a chromatographic method…
23 Knowledge of Gas Chromatography
Gas chromatography is a chromatographic technique that separates and analyzes compounds that are easy to volatilize without being decomposed in organic chemistry. Typical uses of gas chromatography include testing the purity of a specific compound and separating the components of the mixture (and at the same time determining the relative content of each component). In some…
What Is chromatography? Principle ＆ Application
Chromatography is a device used for chromatographic separation and analysis. It is a high-performance physical separation technology. When it is used in analytical chemistry with an appropriate detection method, it is called chromatographic analysis. Chromatography includes a sampling system, detection system, recording, and data processing system, temperature control system, and mobile phase control system. Modern chromatographs…
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