Peak # 1Elution Time=0.21 minPeak Width=D0.02 minMethanePeak Width-D0.02 minElution Time3D0.29 minEthanePeak # 2Peak Width=0.04 minElution Time=0.52 minButanePeak # 3Peak Width=0.05 minElution Time3D0.84 minHeptanePeak # 4Peak Width=0.11 minElution Time=1.52 minDecanePeak # 5Peak Width=0.17 minPentadecane Elution Time32.21 minPeak # 646.1.52.01.00.52.5[min]2.

Question
Asked Dec 10, 2019
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What is the mobile phase for the separation shown and the relative retention between peak 3 &4? 

Peak # 1
Elution Time=0.21 min
Peak Width=D0.02 min
Methane
Peak Width-D0.02 min
Elution Time3D0.29 min
Ethane
Peak # 2
Peak Width=0.04 min
Elution Time=0.52 min
Butane
Peak # 3
Peak Width=0.05 min
Elution Time3D0.84 min
Heptane
Peak # 4
Peak Width=0.11 min
Elution Time=1.52 min
Decane
Peak # 5
Peak Width=0.17 min
Pentadecane Elution Time32.21 min
Peak # 6
4
6.
1.5
2.0
1.0
0.5
2.5
[min]
2.
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Peak # 1 Elution Time=0.21 min Peak Width=D0.02 min Methane Peak Width-D0.02 min Elution Time3D0.29 min Ethane Peak # 2 Peak Width=0.04 min Elution Time=0.52 min Butane Peak # 3 Peak Width=0.05 min Elution Time3D0.84 min Heptane Peak # 4 Peak Width=0.11 min Elution Time=1.52 min Decane Peak # 5 Peak Width=0.17 min Pentadecane Elution Time32.21 min Peak # 6 4 6. 1.5 2.0 1.0 0.5 2.5 [min] 2.

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Expert Answer

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Generally mobile phase is an organic solvent here, so many solvents are used for the mobile phas...

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Relative retention time is calculated by using following formula, Standard time Relative retention time sampleretention time

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