Two-dimensional normal phase ascending TLC is used for the following reasons: for further separation of components during the second development to separate components using 2 solvent systems in the mobile phase: the second being more analytical than the first solvent system to determine purity of components separated during the first development all of the given

Which of the following is FALSE about the Nitrate Reductaion Test, procedure and interpretation?   Question 2 options: A Nitrate medium contains 0.1% potassium nitrate as a substrate B Reagent A and B are used to determine the presence of nitrite C When zinc is added, it will react with any nitrate and turn red D A tube with red after zinc is a positive test for nitrate reduction E A tube that turns red after reagent A and B is a positive test

List the following reagents in the order in which they are added to an ELISA: secondary antibody, bodily fluid sample, enzyme substrate, primary antibody O Scondary antibody, bodily fluid sample, primary antibody, enzyme substrate O Enzyme substrate, primary antibody, secondary antibody, bodily fluid sample Bodily fluid sample, enzyme substrate, secondary antibody, primary antibody Bodily fluid sample, primary antibody, secondary antibody, enzyme substrate

5 1 2 6 Testing Anti-Microbial Agents: Disk-Diffusion. Lab Report Fill out the zones of inhibition table with your data: Agent Tested Cleansing Spray 3 4 Foaming Handwash Hand Sanitizer Lysol spray Detergent Desinfecting zone of inhibition: (mm) E. coli 10mm 15 mm 20mm 0mm 9mm P. aeruginosa 8 mm 35mm 17mm 15mm 0 mm 1mm Hydrogen Peroxide Here, write a few observations about your experimental results. 25mm S. aureus 25mm 20mm 25mm 12mm 8mm 42mm What factors (at least 2) other than the identity of the agent being tested can influence the size of the zone of inhibition? NOT Were any colonies observed within the zone of inhibition? Even if you didn't have any, explain why you might see colonies in the zone of inhibition. Be specific about how that might happen? What follow up questions or conclusions do you have related to your data? (at least 2)