Listed below are depictions of common RP-HPLC stationary phases.a. Name each phaseb. Label each phase as either polar or non-polarc. Describe the attribute(s) that is responsible for retention (ie. adsorption, reversed-phase-like, normal phase-like, intermolecular interactions.CH3CH₂CH₂CH₂すCH₂баChaすCH₂CH₂IS-0-15сн(opo) (ogo) (ogo) (ogo) (080) (080) (080) (080)CHCHICH₂снаCH₂C=N:

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Answered: Listed below are depictions of common…

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter33: High-performance Liquid Chromatography

Section: Chapter Questions

Problem 33.15QAP

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Ankita, well donel You explanation for how you figured out 10m was part of the GCF was very detailed. The next step of factoring out the GCF is where many students get stuck There is more than one way to show how we get from 200p m³ – 30p m + 40m to 10m (20p-3p +4)
15.
Silica gel is very polar stationary phase. Therefore, more polar molecule sticks to silica gel on the TLC plate and has higherRfvalue. True False
Different from GCMS, why is an interface needed when coupling HPLC with MS?
For GC analysis, the following can cause band broadening and poor resolution Use of automatic sampler Slow injection and oversize samples Use of 5 m or longer packed column For samples of fatty acid methyl esters, alkaloids, drugs, and halogenated compounds, an applicable liquid stationary phase for GLC is Polyethylene glycol 50% Cyanopropyl-polydimethyl siloxane 5% Phenyl-polydimethyl siloxane A C18 column is an example of a "reverse phase" column. Reverse phase columns are often used with more polar solvents such as water, methanol or acetonitrile. The stationary phase is a nonpolar hydrocarbon, whereas the mobile phase is a polar liquid. If a sample has the following components, what will be the order of elution? (A.) 1,6- Hexadiol (B.) 2,5-Hexadiol (C.) 2,3,4-Hexatriol CBA BCA ABC
2
Please label importank peaks (isotope peaks, fragments, molecular ions (if present)) please contain location of peaks and likely identity D-glucose C6H1206 (Mass of molecular ion: 180) 100 - MS-NU-9127 80 40 25 50 75 100 12 m/z Source Temperature: 200 °C Sample Temperature: 140 °C Direct, 75 ev 60 20 Relative Intensity
Two components in an HPLC separation have retention times that differ by 15 s. The first peak elutes in 9.0 min, and the peak widths are approximately equal. The dead time to was 65 s. Use a spreadsheet to find the minimum number of theoretical plates needed to achieve the following resolution. R. values: 0.50 0.75, 0.90, 1.0, 1.10. 1.25, 1.50. L75. 2.0 and 2.5. How would the results change if peak 2 were twice as broad as peak 1?
which of the folowing(s) is/are true ? 1 split ratio in GC is a ratio of sample passed to column to amount of mobile phashe 2 column resolution decreases with increasing column lenght 3 decreasing the tube diameter ,increases the resolution
In general, increasing the molecular weight of a Gd-based MR contrast agent results in an increase in contrast agent relaxivity. * True False
A spectrophotometric method for the quantitative determination of the concentration ofPb2+ in blood yields an Ssamp of 0.133 for a 1 mL sample of blood that has been diluted to 6 mL. A second sample is spiked with 1 µL of a 1467 ppb Pb2+ standard and diluted to 6 mL, yielding an Sspike of 0.491. Determine the concentration of Pb2+ in the original sample of blood.
If you are interested in separating a mixture of volatile compounds, which technique do you think would work best? ○ ICPMS ○ HPLC О АА ○ UV/Vis O LOD GC ○ TLC

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