The performance of the supercritical fluid chromatography could be improved by all of the above a O using a modifier .b O applying density programming cO increasing the column lengthdO

Q: A 300 g of a sample is analyzed by series of sieving. The results report were aperture (micrometer)…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: What is the type of column used in chromatography (HPLC) and it's applications and mechanism

A: It is as follows

Q: Relative Standard Deviation of UV Vis, please explain.

A: A question based on RSD, which is to be accomplished.

Q: The following table was written after using sieve analysis method on a paracetamol powder. Sieve…

A:

Q: How many theoretical plates produce a chromatography peak eluting at 12.83 min with a width at…

A: The no. of theoretical plates can be calculated as: Where N is the no. of theoretical plates, tr is…

Q: (5). Write short notes on molecular exclusion chromatography with representative picture.

A: Molecular exclusion chromatography, otherwise called Size-exclusion chromatography (SEC), is a…

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: spot of black ink was placed on a strip of filter paper. The chromatogram was developed using an…

A:

Q: a) In any gas chromatographic analysis, exceeding a column's maximum temperature limit will usually…

A: Gas chromatography

Q: In a thin layer chromatography experiment, a plate of length 8.67 cm was used and a horizontal line…

A: Retention factor (Rf) is defined as the ratio of the distance travelled by the compound (dc) to 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: What is the role of specific visualizing agents in a Thin layer Chromatography?  Please shortly…

A: Thin layer Chromatography - Thin-layer chromatography is a chromatography technique used to separate…

Q: All of the following are classified as an instrumental method of analysis EXCEPT: O A.…

A: Answer: Different methods are used In chemical analysis and they can be classified into two…

Q: What is the HETP of a column that is 200mm with a retention time of 5mins. The (effective)…

A: To calculate HETP and separation factor, α

Q: The plot of retention time versus detector signal in chromatography called?

A: In the GC-plot, the detector response signal is at the y-axis, and the retention time is at the…

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: The mode in liquid-liquid chromatography is all of the above a O reversed phase b O size exclusion…

A: All the Above.

Q: Which type of gas chromatographic column consists of a tube that is densely packed with uniform,…

A: An analytical technique which is used to separate components present in a mixture and to determine…

Q: A sample that contained two components was separated on a column. The column had a length of 15.0…

A: Given: length of column = 15 cm initial resolution = 1.2 required resolution = 2.0 we have to find…

Q: What are the benefits of decreasing the column internal diameter? O Increased sample capacity O…

A: Answer - The correct option is (c)  Increased resolution  Explanation - As we lower the internal…

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: 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…

A:

Q: 1. Provide two advantages and two disadvantage of flow cytometry analysis. Briefly explain each.

A:

Q: A mixture of A and B is injected into a liquid chromatographic column with length of 45 cm. The…

A: given- length of the plate= L = 45 cm plate height = H = ?

Q: This is a developed paper Chromatogram. What is the Rf of the spot? You must use the given cm…

A:

Q: What is the application of chromatography (HPLC) and it's mechanism ?

A: Answer.

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: Compare the quantities For a normal phase chromatographic technique: KA > KB Choose A if Polarity of…

A: Given,               For a normal phase chromatographic  technique :…

Q: Two students A, B did the Flame photometric analysis by different atomization methods in which the…

A: Flame Atomic Absorption Spectroscopy (FAAS), commonly called flame spectroscopy is a branch of…

Q: The HPLC chromatogram below was collected using a reverse-phase column with a length of 10 cm.…

A: Resolution is an important HPLC performance indicator usually assessed by how quickly and how…

Q: the efficiency of a chromatographic column improves the measure that a.increases the height of the…

A: To determine what improves the efficiency of a chromatographic column:

Q: In supercritical-liquid chromatography, methanol is usually added as a modifier .a O all of the…

A: as per my opinion it is option- D

Q: 6. Explain the instrumentation of super critical fluid chromatography in detail. You can construct a…

A: Super critical fluid chromatography -…

Q: A new method is proposed to simultaneously detectand separatefour foodadditives by reversed-phase…

A: (a)  The mathematical expression for calculating the number of plates is: N=16(tRW)2

Q: Name two general methods for improving the resolution of two substances chromatographic column.

A: Good resolution columns provide a great separation of the components by a column chromatography.…

Q: In thin layer chromatography, changing the mobile phase will alter the Rf value of a compound. O…

A: This can be solved as follows

Q: Resolution of neighboring peaks is the difference in retention time divided by the average peak…

A: Welcome to bartleby !  Introdduction :  We have to tell whether the statement is true or not .

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: 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: 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: High performance liquid chromatography (HPLC) can be used to : a. identify the various pigments from…

A: High performance liquid chromatography (HPLC) is defined as a column chromatography where at high…

Q: f the dwell time is 3.5 min for a solvent gradient of 5% B to to 60% B over 20 mi what is the % B…

A: Solution- Given data-  Dwell time is 3.5 min. Solvent gradient of 5% B to 60% B in 20 min. To find-…

Q: Match Column A with Column B. V Distance traveled by the solvent A. Silica gel G Adsorbent used in…

A: 1) The solvent front is defined as the distance that is  traveled by the solvent on the paper' of…

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

A:

Q: Which statement regarding the techniques utilized in splitless injection for gas chromatographic…

A:

Q: A student accidentally started the chromatographic run without covering the beaker with a lid. Which…

A:

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…

Q: Given below is the block diagram of gas chromatography. Identify the unmarked component Column Gas…

A: The chromatographic method used for separating and analyzing compounds that can be vaporized without…