Should you increase the diameter or length of the chromatography colum for increasing throughput?

Q: In thin layer chromatography the initial spot is placed: A. on a pencil line B. four centimeters…

A: Thin layer chromatography is a type of chromatography.

Q: What are diffusion controlled method?

A: Diffusion-controlled method: Diffusion-controlled Method involves the reactions in which the rate of…

Q: Fresh solvent - eluent Mobile phase Sample components A Celumn packing Stationary phase suspended in…

A: B is less polar and A is more polar Because the stationary phase is polar, polar molecules will…

Q: Which statement is valid when the multiple extraction and single extraction is compared.

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Q: economical purification technique that ca n be pure material? O Distillation O Another extraction…

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Q: The performance of the supercritical fluid chromatography could be improved by all of the above a O…

A: Supercritical fluid chromatography is an analytical technique for separation and identification of…

Q: Capillary electrophoresis differs from other chromatographic methods because:

A: It uses unique detectors.

Q: How can you vary the retention factor and selectivity factor?

A: Retention factor is a variable which indicates the time duration a component spends in the…

Q: Explain about Liquid Chromatography technique.

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Q: in what situation does one use  thin and/or column chromatography? You can any of theme for anything…

A: Chromatography is an analytical technique to separate mixtures into it's components.  It is also…

Q: How can I calculate the concentration from a GC/MS chromatogram which is having retention time and…

A: GC-MS chromatography also called the gas chromatography mass spectrometry is an analytical tool to…

Q: Explain why you can only hold the chromatography paper by the edges? What would happen if you touch…

A: Mixture is a type of matter which is composed of two or more substances. These are called as…

Q: Why is splitless injection used with purge and trap sample preparation?

A: The collection of all of the analyte from the unknown and to inject whole of the analyte into the…

Q: Label the parts of this chromatography column. "A" "B" "C" "D" "E" "F"

A: Chromatography -  It is a laboratory technique used for the seperation of a mixture. The mixture is…

Q: How does paper chromatography allow you to separate substances?

A: Paper chromatography allows you to separate substances has to be determined below.

Q: Select which of the following ways gas chromatography can be performed? A. Only in columns B. Only…

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Q: Why Rf value is important in Chromatography?  Please shortly answer at your own words. Answer should…

A: Rf  stand for the Retention factor . Its value is  equal to the distance  travelled by component…

Q: What are the mandatory components required for column Chromatography?  Please shortly answer at your…

A: Columns chromatography  is used for separation  of mixtures  By using stationary and mobile Phase.

Q: How does temperature, flow rate of carrier gas, boiling point and column suupport affect gas…

A: Explanation. Retention time-     Retention time is the amount of time a compound spends on…

Q: if air can degrade a column and cause TC detector filaments to burn out, why do we use an air peak?

A: Interpretation -  If air can degrade a column and cause TC detector filaments to burn out, why do we…

Q: Why does the efficiency (decreased plate height) of liquid chromatography increase as the stationary…

A: to improve resolution in HPLC  by Increasing column length. by Decreasing particle size. by…

Q: Suppose that the sample size was 3.0 mg, the column dimensions were 1.00 m length 3 4.0 mm diameter,…

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Q: High performance liquid chromatography can separate eluates even if they are not present in the UV…

A: The actual separation of each component in a sample is always carried inside a column and to be able…

Q: SUGGEST REASONABLE CLASSIC COLUMN DIMENSIONS FOR CHROMATOGRAPHING 0.5G OF SAMPLE ON ALUMNIA

A: The size of the column decide how much accurate is the separated product. The larger and wider size…

Q: Give two real life application of chromatography

A: Chromatography is technique used to identify the substance present it the mixture.

Q: a pigment in the thin layer chromatography traveled beyond or farther than the solvent front.…

A: As a pigment in the thin layer chromatography traveled beyond or farther the solvent front therefore…

Q: 2 1.2 1.1 3 0.9 4 0.7 For each set, determine the mean, spread, stand rariation. Calculate the…

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Q: Derivatiztion of sample is carried out to: a) Improve analyte peak shape analyte resolution b)…

A: Derivatization of sample is carried out to, (a) Improve analyte peak shape (b) Increase the detector…

Q: Determine the Kovats retention index for all six analytes.

A: In gas chromatography, Kovats retention index is used to convert retention times into…

Q: In HPLC, why is purging or initialization being done before analysis of samples, explain.

A: ✓basically following two reasons for using purging and initialization during HPLC sample preparation…

Q: What is the retention factor (Rf) of the most polar and least polar spot present in the standard…

A: We have to give the retention factor (Rf) of the most polar and least polar spots present in the…

Q: what can be an analyte for using internal standard? sample: vegetable oil containing ethyl oleate,…

A: In the analytical techniques, such as gas chromatography or HPLC, standardization of the sample…

Q: At the completion of the experiment, a student measures the solvent front to be 55 mm from the…

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Q: How retention factor for a solute can be manipulated?

A: Retention factor can be defined as is the ratio of the distance traveled by the solute to the…

Q: If the selectivity factor is equal to 1, the peaks are separated. True or False?

A: The given statement is If the selectivity factor is equal to 1, the peaks are separated.

Q: 4. Phthalate and formate ions can be separated using Ion Chromatography. Data obtained for a sample…

A: A question based on analytical separations that is to be accomplished.

Q: Retention time is the time taken for the mobile phase to reach the detector.   True False

A: Answer - The above statement is false  Explanation - Retention time - Retention time is the sum of…

Q: List 2 types of detectors used in chromatography?

A: Two types of detectors which is used in chromatography  1)UV visible  :- fixed wavelength Variable…

Q: Choice of a paper and solvent are main back bones of paper chromatography .comment.

A: Chromatography is a analytical technique, which is used for separation of mixture of gases or…

Q: How GC retention time can be affected by the mobile phase flow rate and the temperature of the…

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Q: Compare thin layer chromatography and paper chromatography technique with aspects such as…

A: Chromatography is the laboratory technique for the separation and isolation of a variety of samples…

Q: What is the retention factor of a sample when after injectiion the void time (tM) took 4.73 sec? The…

A: Answer: Retention factor is equal to the ratio of difference (between retention time and void time)…

Q: which of the folowing(s) is/are true ?  1 split ratio in GC is a ratio of sample passed to column…

A: Column resolution increases with increase in length and decrease in diameter.

Q: Does the amount of radiation (cpm) increase or decrease as the distance between the sorce and the…

A: Amount of radiation between the source and sensor is determine using the inverse square formula:…

Q: time can be used to ider aphy. Choose a parameter w omatography column. centration of the compound

A: Question 1: We know that, change in the temperature often causes a retention time shift of all the…

Q: what is the effect on the chromatographic peak if a. inserting/adding sample too slow b. column…

A: Effect of chromatographic peak on  a. inserting/adding sample too slow b. column temperature is too…