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Chromatography is used in many different ways. Some people use chromatography to find out what is in a solid or a liquid. It is also used to determine what unknown substances are. The Police, F.B.I., and other detectives use chromatography when trying to solve a crime. It is also used to determine the presence of cocaine in urine, alcohol in blood, PCB's in fish, and lead in water. Chromatography is used by many different people in many different ways.
Types of Chromatography
There are four main types of chromatography.
Liquid Chromatography is used in the world to test water samples to look for pollution in lakes and rivers.
Gas Chromatography is used in airports to detect bombs and is used is forensics in many different ways. It is used to analyze fibers on a persons body and also analyze blood found at a crime scene. In gas chromatography helium is used to move a gaseous mixture through a column of absorbent material.
Thin-layer Chromatography uses an absorbent material on flat glass or plastic plates. This is a simple and rapid method to check the purity of an organic compound. It is used to detect pesticide or insecticide residues in food. Thin-layer chromatography is also used in forensics to analyze the dye composition of fibers.
Paper Chromatography is one of the most common types of chromatography. Chromatography is a technique for separating coloured chemicals. The colour inks in each of your felt tip pens is probably made of a mixture of different colours. Ways invesigators do this is if there was a note left behind from the crime scene crime scene investigators would put it in water till the colours rose and separated. The suspected pens would then go through the same procedure until one matched to the one used on the note.They would then know which pen was used.This can also be used for lipstick and other things like that.
Chromatography is used in many different ways. Some people use chromatography to find out what is in a solid or a liquid. It is also used to determine what unknown substances are. The Police, F.B.I., and other detectives use chromatography when trying to solve a crime. It is also used to determine the presence of cocaine in urine, alcohol in blood, PCB's in fish, and lead in water. Chromatography is used by many different people in many different ways.
Types of Chromatography
There are four main types of chromatography.
Liquid Chromatography is used in the world to test water samples to look for pollution in lakes and rivers.
Gas Chromatography is used in airports to detect bombs and is used is forensics in many different ways. It is used to analyze fibers on a persons body and also analyze blood found at a crime scene. In gas chromatography helium is used to move a gaseous mixture through a column of absorbent material.
Thin-layer Chromatography uses an absorbent material on flat glass or plastic plates. This is a simple and rapid method to check the purity of an organic compound. It is used to detect pesticide or insecticide residues in food. Thin-layer chromatography is also used in forensics to analyze the dye composition of fibers.
Paper Chromatography is one of the most common types of chromatography. Chromatography is a technique for separating coloured chemicals. The colour inks in each of your felt tip pens is probably made of a mixture of different colours. Ways invesigators do this is if there was a note left behind from the crime scene crime scene investigators would put it in water till the colours rose and separated. The suspected pens would then go through the same procedure until one matched to the one used on the note.They would then know which pen was used.This can also be used for lipstick and other things like that.
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