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Question 3 CHE4804/103/0/202 [9] 3.1. Figure 2 is a GC chromatogram. solvent peak Response X Y Z Retention time (min) Figure 2: Gas chromatogram of unknown. a) State what is the problem with the chromatogram in figure 2? (1) b) What could be the source of the identified problem? (2) c) How the problem can be solved? (1) 3.2. What are hyphenated GC methods? Briefly describe two hyphenated methods. (4) 3.3. Rearrange the following compounds in the order of their elution from a reversed- phase packed HPLC column. propylene, hexane, benzene, dichlorobenzene. (1)

          Question 3
CHE4804/103/0/202
[9]
3.1. Figure 2 is a GC chromatogram.
solvent peak
Response
X
Y
Z
Retention time (min)
Figure 2: Gas chromatogram of unknown.
a) State what is the problem with the chromatogram in figure 2? (1)
b) What could be the source of the identified problem? (2)
c) How the problem can be solved? (1)
3.2. What are hyphenated GC methods? Briefly describe two hyphenated methods. (4)
3.3. Rearrange the following compounds in the order of their elution from a reversed-
phase packed HPLC column. propylene, hexane, benzene, dichlorobenzene. (1)

question 3 che48041030202 9 31 figure 2 is a gc chromatogram solvent peak response x y z retention time min figure 2 gas chromatogram of unknown a state what is the problem with the chromato 90835

Added by Alberto K.

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