Categorize each as a determinate or an indeterminate error and further classify determinate errors as instrumental, method or personal.d) The tip of the pipet used in the analysis is broken. e) In measuring the same peak heights of a chromatogram, two technician each report different heights.

Question 3 (b) Given the chromatogram shown below, answer the following questions: (b) Calculate the adjusted retention time for compound/peak 3 (in minutes). 3. 10 0. 5 8. 10 Time (min) HO OH Benzoic acid Phenol Toluene Benzene Detector Signal (mAU) 20

would column chromatography separate ketone and alcohol

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Why do we use a makeup gas for some gas chromatography detectors?

1. In thin layer chromatography (TLC), why do you need to use a pencil in marking the spots, origin, and solvent front and not a marker? 2. Why is it necessary to mark the solvent front immediately? 3. Why do you need to ensure that the loading spot is above the solvent level in paper chromatography? 4. Why do different compounds travel different distances on the piece of paper?

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Preparing a Thin Layer Chromatography experiment there are some common mistakes. Explain what happens in this situation: Sample spots too big

4. What technique error would cause micropipette delivery to be consistently high? Is this considered a gross error, random error, or systematic error? 5. A student's micropipette standard deviation is larger than the tolerance limit. Explain how the student could design a new experiment to determine if the error is due to the micropipette not functioning properly or if the error is due to the student's technique?

what ccan be a cause of not getting a baseline separation when it comes to chromatography? if it is not a hardware problem