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What is difference between preparative and analytical chromatography?
Analytical chromatography refers to the processes of separating a sample into its components and identifying these components, and is usually a small scale process. Preparative chromatography, on the other hand deals with isolating the separated components of a sample, and can be done on both small-scale or larger industrial scale operations. Preparative chromatography is a form of purification that utilizes chromatography.
Is solvent extraction extraction a type of chromatography?
we can say this because both of these are separation technique
What is the difference between vacuum chromatography and flash chromatography?
Flash chromatography uses pressure (under 10 psi) to pump solvent down a column at a rate faster than gravity would provide. Vacuum chromatography uses a vacuum at the bottom of the column to pull solvent through. Both can be performed with standard glass columns, but usually vacuum chromatography is done with a silica filled vacuum funnel instead as a rough purification technique.
What is the significance of Rf value in chromatography?
See related link below for a better explanation than mine.. I am not to familiar with Rf values, but I have an idea. Rf values are the ratio between the distance traveled by the spot of the analyte to the distance traveled by the solvent used. This is used in paper chromatography and thin layer chromatography. Rf value will allow you to compare to your unknown substance that you are trying to analyze. I will put a link the both paper and TL chromatography.
What unit can mass and volume both can be measured with?
There is no unit of measure, and no mechanical device, that can describe or measure both mass and volume.
Are Adsorption and partition chromatography types of column chromatography?
Yes,both can performed in columns.
Which is more accurate to measure density Archimedes principle or water displacement method?
They are both the same. displacement method is another name for Archimedes' principle
What is difference between preparative and analytical chromatography?
Analytical chromatography refers to the processes of separating a sample into its components and identifying these components, and is usually a small scale process. Preparative chromatography, on the other hand deals with isolating the separated components of a sample, and can be done on both small-scale or larger industrial scale operations. Preparative chromatography is a form of purification that utilizes chromatography.
How is extraction related to chromatography?
Both are techniques of analytical chemistry and use a solvent.
Is solvent extraction extraction a type of chromatography?
we can say this because both of these are separation technique
Differences between extraction and chromatography?
both the terms can be alternatively used but chromatography is seperation of mixture i.e. all the components in the mixture are seperated but in the extraction only the desired one is seperated
What is the difference between vacuum chromatography and flash chromatography?
Flash chromatography uses pressure (under 10 psi) to pump solvent down a column at a rate faster than gravity would provide. Vacuum chromatography uses a vacuum at the bottom of the column to pull solvent through. Both can be performed with standard glass columns, but usually vacuum chromatography is done with a silica filled vacuum funnel instead as a rough purification technique.
How do you measure the force of gravity?
By far the easiest method is with the use of a scale. For example, when you stand on a bathroom scale, it displays the magnitude of both forces of gravity between you and the Earth.
What is the addition or subtraction method?
Column method can be used for both !
What method remove both temporary and permanent hardness of water?
Boiling method
What word has the definition of equal measure?
Meaning that both items that you measure have the same measure
Where could chromatography be used?
Chromatography comprises a wide variety of analytical methods and is a common tool for chemists. Chromatography can be used in two main ways: preparatory work and analysis. In preparatory work, the chromatography column can be used to separate one type of molecule from another based on the characteristics of that molecule. An example would be taking the cellular components of digested cells and separating the DNA out from all of the other components. In analysis, an unknown sample can be sent through a chromatography column which is set up to an analyzer (for which there are many kinds). Molecules separate based on their characteristics and the detector can record how long it takes them to leave the column. Standards (solutions that have a known chemical in them) can be used for comparison. If a standard and an unknown compound both move through the same column in the same amount of time, it is reasonable to assume that this is what the unknown is. Chromatography is used in all forms of science and new methods and techniques have been created to enhance the detection limits and usefulness of chromatography. The details of chromatography are quite in depth as this is a complex kind of scientific analysis.
