errors in thin layer chromatography?

Q: Which of the following is TRUE for a reversed phase chromatography experiment? i. Less polar…

A: In Reverse phase chromatography, mobile phase is polar and stationary phase is the non-polar…

Q: Explain in depth why you had to use ethanol and water to elute the compounds for column…

A: Concept:  Column chromatography: Column chromatography is a technique in chemistry to isolate a…

Q: Explain

A: In TLC analysis we put solvent below the sample spot .

Q: The identity and ratio of solvents are necessary in chromatography for achieving a good separation.…

A: if your solvent had an overly polar TLC developer then all the components of the mixture will move…

Q: Which of the following is best to use to separate butanol from the volatile mixture? O a. Affinity…

A: chromatography used to separate butanol from the volatile mixture

Q: In Thin Layer Chromatography，why does the least polar of the analytes （biphenyl）have a higher Rf…

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Q: What would be the effect of the following errors in chromatographic work? d. The paper or plate is…

A: The Thin layer chromatography works on the principle of separation.  There may be some error in…

Q: a. What does ECD mean. b. Discuss how column temperature influences separation in a chromatography…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: What is the role of the stationary phase and mobile phase in chromatography?

A: Solution:    Chromatography is a laboratory separating technique for the mixture. The mixture of…

Q: what is the best choice of detector for lorazepam in Gas chromatography

A: The best choice of detector for lorazepam in Gas chromatography is nitrogen-phosphorus…

Q: Thin Layer Chromatography why the non-polar compounds move up the plate most rapidly (higher Rf…

A: TLC is most useful technique to know the extent of the reaction .And the no of compound present in…

Q: Column Chromatography) What complications would a dried-out column (solvent level is below the top…

A: column chromatography is the technique used to separate compounds of different polarity .In this…

Q: Which of the following statements about the setup of thin layer chromatography is FALSE?     The…

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Q: 2. In HPLC analysis, why Would peak area is preferred to peak height in evaluating the caffeine…

A: Since you have asked multiple questions, we will answer the first question for you. To get the…

Q: Which of the following is TRUE for a reversed phase chromatography experiment? i. Less polar…

A:

Q: Which of the following changes would work to improve chromatographic separations? Explain briefly…

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Q: You are monitoring the reaction A --> B via periodic GC analysis. Initially, you only see one peak…

A: GC analysis is analytical technique by which separation of chemical mixture into its constituents…

Q: calculate the following for each sample gas chromatograph. a) retention time for each peak (label…

A: Gas chromatography is a technique for separating and analyzing compounds that can be vaporized…

Q: Compare between open tabular column and packed columns in gas chromatography?

A: Gas chromatography is a technique which involves the sample being vaporized and then injected into…

Q: The following are all considered problems in chromatographic separations. Briefly, discuss how each…

A: Peak fronting occurs when the solubility of the given sample in the given stationary phases is too…

Q: What is the effect of mobile phase on each (known) sample when doing Gas Chromatography?

A: Gas chromatography (GC) is a special type of chromatographic separation technique that is used to…

Q: Which substance is best to run the column chromatography? a)The solvent that is very polar B)The…

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Q: In thin-layer chromatography, what will be the result if the solvent level is higher than the sample…

A: A multiple choice question based on thin layer chromatography, which is to be accomplished.

Q: What is the principle behind reverse-phase ion-pairing chromatography?

A: Reverse Phase ion chromatography use the principle of  Solute ions instead of molecules .

Q: Enlist the solvents used as stationary and mobile phases in paper chromatography.

A: Paper chromatography: It is the technique that is used in order to separate the colored chemical…

Q: Which of the following is TRUE for a reversed phase chromatography experiment?    i. Less polar…

A:

Q: [1] In paper chromatography, why do some ions move only a short distance from the point of…

A: In paper chromatography, the stationary phase is the water present in trapped state between the…

Q: Would you expect that changing the solvent will change the Rf value of the specific solute? Why? 6.…

A: 5) on changing the solvent, the Rf value will change because the polarity of the solvent will change…

Q: 1. In thin layer chromatography (TLC), why do you need to use a pencil in marking the spots, origin,…

A: 1. Marker spot is soluble in the solvent. Therefore it will move on TLC plate with solvent. 2.…

Q: 1) Study the chromatograph (below) of a mixture of Compounds A and B, run on the GCs in the teaching…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Why is it necessary to use cold trapping on the gas chromatography column if sample is introduced…

A: Gas chromatography is an analytical technique o separate the components of a sample mixture.  Here…

Q: What is the difference between an ascending and descending paper chromatography?

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Q: How might the Rf values of colorless substances be determined? That is, how could the colorless…

A: we use locating agents which reacts with the substance to form colored compound

Q: Match column A with column B. v Mobile phase: NON-POLAR Stationary phase: NON-POLAR v mobile phase -…

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Q: What is the polarity of the compounds closest to the point of application on the filter paper when…

A: Chromatography is used to separate mixtures of substances into their components. All forms of…

Q: For thin layer chromatography, why should a piece of filter paper that is moistened with the…

A: Purpose of the Filter Paper in the Thin-Layer Chromatography :- Filter paper is placed in the…

Q: Ms. Muna Al Naabi in the Analytical chemistry laboratory wanted to separate chlorophenol by liquid…

A: Number of theoretical plates and plate height can be calculated using respective formulas.

Q: 4. The paper chromatogram of an unknown mixture is shown below: final solvent level 5.3 cm 6.0 cm B…

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Q: 1. What would be the effect of the following errors in chromatographic work? a. Damaged silica gel…

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Q: How to determine which is the most polar and least polar in REVERSE PHASE thin-layer chromatography?…

A: Chromatography technique is used to separate compounds from mixture of compounds.Let's discuss the…

Q: A chromatographic column is eluted with a solution containing a mixture of two components, X and Y.…

A: The order of elution of different components in a mixture in a chromatographic column, is determined…

Q: Sample contains (A, B, C, D) analyzed by thin layer chromatography using solvent system X the result…

A: Thin-layer chromatography has two phases a stationary phase and a mobile phase. The silica gel…

Q: (b) In a chromatographic analysis of low molecular-weight acids, butyric acid and isobutyric acid…

A: Given,  Retention time for butyric acid = 7.63 min  Retention time for isobutyric acid = 5.78 min…

Q: Match column A with Column B. Everything is all about column Chromatography v Least polar molecules…

A: This question is related to column chromatography. Column chromatography is a technique used to…

Q: 7. Which of the following compounds will elute LAST in a reverse phase chromatography? A. ONF

A: In reverse phase chromatography, the stationary phase is non-polar and mobile phase is polar.

Q: When separating compounds by column chromatography, it is generally desirable to apply your compound…

A: Column chromatography is a kind of liquid chromatography and it works just like Thin Layer…

Q: Why is thin layer chromatography a convenient way to anayize triphenylmethanol

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Q: c) In one paper chromatography, the Rf for spots X and Y are 0.5 and 0.35 respectively. The solvent…

A: Paper chromatography is the chromatography based on liquid-liquid partition chromatography. It…

Q: . What factors can affect a solute's Rf value in thin-layer chromatography? 2. Why is it necessary…

A: Answer - According to the question - Rf values and reproducibility can be affected by a number of…

Q: thin layer chromatography: What would happen to the Rf value of a compound if you increased the…

A: One of the methods of identification of the individual compounds from a mixture of compounds is TLC.…