Do not answer Question 6 \"Gas Chromatography\" Post-lab Questions (27 points) 1

Question

Do not answer Question 6

"Gas Chromatography" Post-lab Questions (27 points) 1. How do organic compounds interact with the mobile and stationary phases in chromatography (thin-layer, liquid, and gas)? 2. The Vernier Mini GC uses a metal column with the inside of the column coated with the stationary phase. What type of mobile phase is used by the Vernier Mini GC? Do more volatile compounds flow through the GC faster or slower than less volatile compounds? Explain 3. 4. How do functional groups of an organic compound effect how it travels through the GC Explain 5. What is retention time and why are retention times useful? 6. Answer the following questions based on the gas chromatogram shown in Figure 3-3 a. How many components were present in the sample that was injected? b. Is the first peak shown on the chromatogram the least volatile or most volatile component of the mixture? c. What are the approximate retention times of peaks 1, 2, and 3? 7. What is the purpose of calculating response factor and from which sample data is it calculated from?

Explanation / Answer

Answer for question number 2 is explained below, As it is highlighted to answer question number 2 and also not to answer question 6, so question 2 alone explained here

2. Metal column with nonpolar coating is called the stationary phase and the sample contain one or two compound is injected to the column which is carried by atmospheric air,

Hence Atmospheric air acts as mobile phase

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