please answer hurry up ..... What kind of “cation and anion exchanger resins” can be used in the columns of an ion chromatography instrument. Draw chemical structure of the ion exchanger group for each type.
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please answer hurry up ..... What kind of “cation and anion exchanger resins” can be used in the columns of an ion chromatography instrument. Draw chemical structure of the ion exchanger group for each type.
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- Chemistry Briefly describe the differences between the scanning and SIM approaches with reference to your data. Discuss how and why your scanning (TIC) and SIM (mass chromatograms look different. Pay particular attention to selectivity of compounds detected and signal-to-noise. What are some advantages of SIM? What are some disadvantages?What kind of “cation and anion exchanger resins” can be used in the columns of an ion chromatography instrument. Draw chemical structure of the ion exchanger group for each type.1. How does chromatography separate the components of leave samples? 2. Can you use chromatography to purify a mixture? why? 3. What is Rf value and its significance in chromatography?
- As distillation method is used to seperate a homogenous mixture, which kind of mixtures chromatography can seperate? Give some example.PART1: Put True (T) or False (F) for the following sentences: 1. chromatography" derived from two Greek words "Chroma" meaning color and "graphein" meaning to write. The stationary phase may be a solid, or a liquid supported on a solid or gel. 3. The mobile phase may be 2. Solid. 4. Silica gel is the most common stationary phase in adsorption chromatography. 5. Liquid Chromatography abbreviated as (GC ). 6. In Thin Layer Chromatography, the mobile phase is gas. 7. a = KB/KA, where Kg is the distribution constant. 8. k'B and k'A are the retention factors. 9. Rf, is the distance traveled by the compound ONLY. 10. Chromatography is a physical method of separation.Describe the sample properties that would be suitable for; i) Gas chromatography (GC) analysis ii) High-performance liquid chromatography (HPLC) analysis
- what is chromatography? Explain different types of chromatography and explain how to seperate compounds. indicate stationary phase mobile phase.How can you use ion exchange Chromatography to de-ionize water? Please shortly write at your own words. (4-5 lines maximum ).a) What would you see if you ran a Thin Layer Chromatography (TLC) on a mixture of the three solids shown below using silica gel as the stationary phase and ethyl acetate/hexanes as the mobile phase? Whichsolid would have the highest Rf and which would have the lowest Rf? Explain b) Would changing the mobile phase (from part a) and increasing thepolarity by introducing small amount of methanol to the mobile phase change the order ofRf of the above 3 compounds? Explain c) Another type of chromatography is Reverse Phase Chromatography. In this type ofchromatography, the stationary phase is non-polar and the mobile phase is polar. If astudent performed Reverse Phase TLC on the mixture of 3 solids (from part a),what would be the order of Rf’s of the compounds? Which would have the lowest Rf andwhich would have the highest Rf?
- Which of the following statement is false? a. Component with the strong attraction to the support move more slowly than component with weak attraction. b. Chromatography technique used to separate only colored compounds. c. On TLC, single spot does not mean or guarantee a single substance (compound). d. Iodine vapor and UV- lamp are methods used for visualization uncolored compounds.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?1. Substances that interact more strongly with the mobile phase will tend to elute out more slowly. True or False. 2. Substance A has a longer retention time (tR) than substance B. Therefore substance B will emerge/elute out more quickly. True or False. 3. Which of the following types of liquid chromatography is characterized by separation of chemicals based on their interactions with a biologically related binding agent? Answer options: • Adsorption chromatography • Partition chromatography • Ion-exchange chromatography • Size-exclusion chromatography Affinity chromatography ●
