Chemical Practical Technique

P2 And M3 Chemical Practical technique P2 One of the chemical working techniques I utilize was report chromatography. Chromatography is a method for analyzing thickening mixtures (such as sign) by separating them into the chemicals from which they are made. Chromatography is used to separate and distinguish alone sorts of substances in police work. Drugs from narcotics to aspirin dismiss be set in urine and blood samples, often with the supporter of chromatography. The system I used was the following: 1. Cut some(prenominal) coffee bean filters into long airs, one strip per set down a line. 2. Fold the end of apiece strip over then staple it to form a loop. 3. Place a dot of ink near the underside of each strip. use a draw to identify which strip belongs to which pen. 4. Poke a pencil through one of the loops you tho made. Use the pencil to suspend the strip in a small grump or container. 5. Carefully add body of piss to the wish-wash until it reache s the bottom of the paper strip just downstairs the ink dot. Be sure the ink stays higher up the body of water and the paper stays in the water. 6. Allow the water to soak up the strip and watch what happens to the ink drop. 7. If the ink you are streaking does non spread out, re-test it using abrasion alcohol. 8. Repeat this solve for each strip and compare your results. 9. let the strips dry and read them on a sheet of paper as a record of the different pen types. M3 Conclusion From sounding at the results I obtained from the chromatography tests, I can tell the pen prove was the pen used to write the suicide note. The test on the pen and the suicide note two matched indicating it was the selfsame(prenominal) pen used. withal this on its own is not decisive evidence to imply it was suicide the pen and suicide not should be both analysed for fingerprints so the person who wrote the document and used the pen can be identified.If you want to get a full essay, r ule it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay