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chromatography    音標拼音: [kromət'ɑgrəfi]
n. 套色版

套色版

chromatography
n 1: a process used for separating mixtures by virtue of
differences in absorbency

Chromatography \Chro`ma*tog"ra*phy\, n. [Gr. ?, ?, color
-graphy.]
1. A treatise on colors [archaic]
[1913 Webster]

2. (Chem.) an analytical and preparative technique for
separating substances by differences in their selective
adsorption to solids, by passing a liquid over the solid,
to which the substances to be separated have usually been
adsorbed in a preliminary step. The major variations are
column chromatography, in which the substances to be
separated are adsorbed to a column with any of a wide
variety of adsorbing solids in powdered or granulated
form; paper chromatography, in which the solids are
applied as a spot at one end of a strip of absorbent paper
(such as filter paper), and the liquid is percolated
through the paper by capillary action; and thin-layer
chromatography (TLC), which is similar to paper
chromatography, but the adsorbent material is, instead of
paper, a thin layer of finely powdered material, such as
cellulose or silica, on a backing of glass or plastic,
called a TLC plate. A modern version of {column
chromatography} is high-performance liquid chromatography,
usually referred to as HPLC.
[PJC]

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英文字典中文字典相關資料:
  • Chromatography - Wikipedia
    Chromatography is based on the concept of partition coefficient Any solute partitions between two immiscible solvents When one make one solvent immobile (by adsorption on a solid support matrix) and another mobile it results in most common applications of chromatography
  • Chromatography | Definition, Types, Facts | Britannica
    Chromatography, technique for separating the components, or solutes, of a mixture on the basis of the relative amounts of each solute distributed between a moving fluid stream, called the mobile phase, and a contiguous stationary phase
  • Chromatography: Definition, Principles, Types, and Applications
    Chromatography is a key technique in chemistry used to separate and study the components of a mixture It works by moving different substances at different speeds through a medium, allowing scientists to identify and measure the amounts of each component
  • What is Chromatography and How Does It Work? - Thermo Fisher Scientific
    Chromatography is a process for separating components of a mixture To get the process started, the mixture is dissolved in a substance called the mobile phase, which carries it through a second substance called the stationary phase
  • Chromatography: Principle, Types, Steps, Uses, Diagram
    Understand chromatography from sample prep to detection, learn its principle, key parts, common types, factors, applications, pros, cons and safety tips
  • Chromatography - Chemistry LibreTexts
    Chromatography is a method by which a mixture is separated by distributing its components between two phases The stationary phase remains fixed in place while the mobile phase carries the components of the mixture through the medium being used
  • What is Chromatography All About? - PMC
    Chromatography is used to analyze mixtures by identifying the components, determining the amount of each present, and in some cases, purifying the separate parts
  • What is Chromatography? - ChemTalk
    This article covers how chromatography separates compounds, and different methods like gas, thin-layer, paper and liquid chromatography
  • Principle of Chromatography Explained | RevisionDojo
    Learn the principle of chromatography, how separation works, and why this technique is essential in IB Chemistry
  • Chromatography – Principle, Types, Applications - Biology Notes Online
    There are several types of chromatography, including gas chromatography (GC), high-performance liquid chromatography (HPLC), thin-layer chromatography (TLC), ion-exchange chromatography, affinity chromatography, and more





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