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State two factors which determine the distance a substance travels up the paper. The results show that the sample form one horse contains illegal substances. State which horse and the drug that is present. The results for known drugs are given by Re values. Calculate the Re value for caffeine.

State two factors which determine the distance a substance travels up the paper. The results show that the sample form one horse contains illegal substances. State which horse and the drug that is present. The results for known drugs are given by Re values. Calculate the Re value for caffeine.

Biology (MindTap Course List)
Biology (MindTap Course List)
11th Edition
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Chapter45: The Immune System: Internal Defense
Section45.3: Adaptive Immune Responses In Vertebrates
Problem 3C
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Q3: 0 Chromatograph is used by the "Horse Racing Forensic Laboratory" to test for the presence of illegal drugs in racehorses. A concentrated sample of urine is spotted on to chromatograph paper on the start line. Alongside this, known drugs are spotted. The chromatogram is run using methanol as the solvent. A chromatogram of urine from 4 racehorses is shown in the following diagram and details are included in the Table. 10 Spot Description 1 Caffeine 8- Paracetamol 7- Urine sample horse A Urine sample horse B Urine sample horse C Urine sample horse D 3 4 (a) State two factors which determine the distance a substance travels up the paper. (b) The results show that the sample form one horse contains illegal substances. State which horse and the drug that is present. (c) The results for known drugs are given by Re values. Calculate the Re value for caffeine. Scale/cm
Transcribed Image Text:Q3: 0 Chromatograph is used by the "Horse Racing Forensic Laboratory" to test for the presence of illegal drugs in racehorses. A concentrated sample of urine is spotted on to chromatograph paper on the start line. Alongside this, known drugs are spotted. The chromatogram is run using methanol as the solvent. A chromatogram of urine from 4 racehorses is shown in the following diagram and details are included in the Table. 10 Spot Description 1 Caffeine 8- Paracetamol 7- Urine sample horse A Urine sample horse B Urine sample horse C Urine sample horse D 3 4 (a) State two factors which determine the distance a substance travels up the paper. (b) The results show that the sample form one horse contains illegal substances. State which horse and the drug that is present. (c) The results for known drugs are given by Re values. Calculate the Re value for caffeine. Scale/cm
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