Asked by: Lucineide Wolfheim
science chemistry

What is chromatography and how exactly does it work?

Last Updated: 5th June, 2020

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Chromatography is actually a way of separatingout a mixture of chemicals, which are in gas or liquid form, byletting them creep slowly past another substance, which istypically a liquid or solid.

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Keeping this in consideration, what is chromatography used for and how does it work?

Chromatography is used to separatemixtures of substances into their components. All forms ofchromatography work on the same principle. The mobile phaseflows through the stationary phase and carries the components ofthe mixture with it. Different components travel at differentrates.

One may also ask, where is chromatography used? Chromatography is used in industrialprocesses to purify chemicals, test for trace amounts ofsubstances, separate chiral compounds and test products for qualitycontrol.Chromatography is the physical process by whichcomplex mixtures are separated or analyzed.

Regarding this, what is an example of chromatography?

An example of chromatography is when a chemicalreaction is used to cause each of the different size molecules in aliquid compound to separate into their own parts on a piece ofpaper.

What is chromatography in chemistry?

Chromatography is a method by which a mixture isseparated by distributing its components between two phases. Thestationary phase remains fixed in place while the mobile phasecarries the components of the mixture through the medium beingused.

Related Question Answers

Asya Grieswald

Professional

What is the process of chromatography used for?

Chromatography is actually a way of separatingout a mixture of chemicals, which are in gas or liquid form, byletting them creep slowly past another substance, which istypically a liquid or solid. As the mobile phase moves, itseparates out into its components on the stationaryphase.

Samy Cacciatore

Professional

What are the basic principles of chromatography?

It is defined as the process of separation of theindividual components of a mixture based on their relativeaffinities towards stationary and mobile phases. Principle:The samples are subjected to flow by mobile liquid onto or throughthe stable stationary phase.

Aaya Gazolaz

Professional

What is stationary phase in paper chromatography?

In paper chromatography, substances aredistributed between a stationary phase and a mobilephase. The stationary phase is the water trapped betweenthe cellulose fibers of the paper. The mobile phaseis a developing solution that travels up the stationaryphase, carrying the samples with it.

Suleica Graaff

Explainer

Why is chromatography important?

Chromatography plays an important role inmany pharmaceutical industries and also in the chemical and foodindustry. Chromatography is used for quality analyses andchecker in the food industry, by identifying and separating,analyzing additives, vitamins, preservatives, proteins, and aminoacids.

Seham Baloo

Explainer

What is the procedure of paper chromatography?

Process
  • Step 1: A horizontal line is drawn near one end (about 1.5 cmfrom the bottom edge) of the paper.
  • Step 2: The sample needs to be separated is placed as a smalldrop or line on to the paper using capillary tube.
  • Step 3: The paper is then placed into a sealed container with aswallow layer of suitable solvent.

Diosnel Kartashev

Explainer

What is Rf value?

The Rf value is defined as the ratio of thedistance moved by the solute (i.e. the dye or pigment under test)and the distance moved by the the solvent (known as the Solventfront) along the paper, where both distances are measured from thecommon Origin or Application Baseline, that is the point where thesample is

Dominick Lingg

Pundit

What is the best solvent for paper chromatography?

Readily Available Solvents for Paper Chromatography
Solvent Polarity (arbitrary scale of 1-5) Suitability
Water 1 – Most polar Good
Rubbing alcohol (ethyl type) or denatured alcohol 2 – High polarity Good
Rubbing alcohol (isopropyl type) 3 – Medium polarity Good
Vinegar 3 – Medium polarity Good

Manolete Adilov

Pundit

How is chromatography used for drug testing?

The most sophisticated drug-testingapproach is gas chromatography coupled with massspectrometry (GC/MS), which is regarded as a "gold standard"; it isused in confirmatory testing. Typically, GC/MS ispreceded by a rapid immunoassay method to eliminate the majority ofthe "negative" samples.

Procopia Panhuis

Pundit

What is chromatography simple?

Chromatography is a method using mixed substancesthat depends on the speed at which they move through special media,or chemical substances. It consists of a stationary phase (a solid)and a mobile phase (a liquid or a gas). Chromatography ismuch used in biochemistry and analytical chemistry.

Eliska Feiteiro

Pundit

What is an example of paper chromatography?

Chromatography is a method for separating theparts of a mixture of either a gas or liquid solution containingdifferent chemicals. Stationary phase: the liquid or solid throughwhich the tested substance is carried (coffee filter paper,paper towel are examples).

Laureana Schmittutz

Pundit

What is the mobile and stationary phase in chromatography?

Chromatography is used to separate mixtures ofsubstances into their components. They all have a stationaryphase (a solid, or a liquid supported on a solid) and amobile phase (a liquid or a gas). The mobile phaseflows through the stationary phase and carries thecomponents of the mixture with it.

Vasylyna Prokoshin

Teacher

Who is the father of chromatography?

Mikhail Semyonovich Tswett

Priscilla Bacchus

Teacher

Why is it called chromatography?

Mikhail Tsvet and Early ColumnChromatography
In the 1890s, column fractionation was developed as atechnique to separate out the different components of petroleum. Asa result, he named the technique“chromatography”; “chroma” from theGreek word for “colour”, combined with“graphy”, meaning writing orrecording.

Wenying Gruson

Teacher

What is called chromatography?

Chromatography, technique for separating thecomponents, or solutes, of a mixture on the basis of the relativeamounts of each solute distributed between a moving fluid stream,called the mobile phase, and a contiguous stationaryphase.

Adilson Haufe

Teacher

What is chromatography equipment?

Chromatography Equipment. Chromatographyis the broad term for laboratory techniques designed for theseparation or analysis of complex mixtures. The mixture isdissolved in a fluid called the mobile phase, which carries itthrough a structure holding another material called the stationaryphase.

Ernestas Wichtrup

Reviewer

What is chromatography and its types?

Chromatography is a versatile separationtechnique widely used to obtain pure compounds from mixtures. Thefive main types of chromatography include thin layerchromatography, gas chromatography, high-performanceliquid chromatography, size exclusion chromatography,and affinity chromatography.