In chromatography, the compound that is least soluble in the mobile phase a) Travels the furthest away from the line of origin b) Stays closest to the line of origin
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In chromatography, the compound that is least soluble in the mobile phase
a) Travels the furthest away from the line of origin
b) Stays closest to the line of origin
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- [1] In paper chromatography, why do some ions move only a short distance from the point of application while others move much more?Thin Layer Chromatography. All types of chromatography have mobile phaseand stationary phase. What is a stationary phase and a mobile phase? Elaborate your answer.How does it affect the peak produced in gas chromatography when: – Inserting samples is too slow – Column temperature is too high
- Can paper chromatography be used to separate and identify very volatile substances? Why? Please explain comprehensively.What is the stationary phase in thin layer chromatography and its polarity? Choices: Cellulose - non-polar Cellulose - polar Silica - non-polar Silica - polarIn paper chromatography, a rectangular piece of filter paper serves as the mobile phase stationary phase eluent solute sample spots
- Describe chromatography analysis, the two essential phases used in paper chromatography and provide an example.Explain the following (1) Column Chromatography(CC) (2) Paper Chromatography (3) Thin Layer Chromatography(TLC) (4) Gas Chromatography (GC)In molecular exclusion (size exclusion) chromatography, the molecules have the longest retention times. a) the larger molecules b) the smaller molecules
- Chromatography involves the separation of two or more compounds/ions caused by their molecular interactions with two phases. True FalseWaht is the composition of the reverse phase chromatography? non-polar stationary phase - non polar mobile phase polar stationary phase - non polar mobile phase polar stationary phase - polar mobile phase non- polar stationary phase - polar mobile phase16) Which of the following(s) is/are correct? I- Selectivity factor is the amount of time a solute spends in the stationary phase relative to the time it spends in mobile phase II- The retention time for an analyte is the time interval between its injection onto a column and its appearance at the detector at the other end of the column. III- Distribution constant is the ratio of the total solute concentration in the stationary phase to that in the mobile phase. A) I, II and III B) Only II C) I and III D) II and III E) Only III for GC2