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State 5 applications of paper chromatography
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Paper chromatography is a simple and versatile technique with various applications in chemistry and related fields. Here are five examples:
1. Separation and identification of pigments in plant extracts: This is a classic example. Different pigments, such as chlorophyll, carotenoids, and anthocyanins, can be separated based on their different polarities and affinities for the stationary phase (paper) and the mobile phase (solvent). This allows for identification and quantification of pigments.
2. Analysis of amino acids: Paper chromatography can separate and identify amino acids present in a sample. This is useful in areas like biochemistry and food science.
3. Drug testing: Paper chromatography is used in drug testing to identify the presence of certain drugs in urine or blood samples.
4. Forensic analysis: Paper chromatography can help identify substances found at crime scenes, such as ink, dyes, or other chemical compounds.
5. Quality control in industry: Paper chromatography is used in quality control of various products, including food, pharmaceuticals, and cosmetics, to ensure their purity and consistency.
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