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

Q: Prelaboratory Assignment for Paper Chromatography 0 The 1 SAYIY

A: Note : Compound A is more soluble in mobile phase. Therefore compound A is less polar and having…

Q: two chromatograms after LC separation. Which chromatogram is better to proceed for MS analysis? What…

A: LCMS is Liquid chromatography–mass spectrometry used  for separation, identification and percentage…

Q: Which of the following factors DOES NOT affect retention time of a sample undergoing normal phase…

A:

Q: Describe the sample properties that would be suitable for; i) Gas chromatography (GC) analysis ii)…

A: GS and HPLC are the techniques to separate compounds from mixtures .These are nalytical methods of…

Q: How does it affect the peak produced in gas chromatography when: – Inserting samples is too slow –…

A: ✓Chromatography is a technique that separates components in a mixture by the difference in…

Q: Two methods were applied to measure and test the standard reference materials of chromium. Quantity…

A: For testing that two std deviation are significantly different or not, we apply F test s1 = 0.000013…

Q: As the temperature of a gas chromatography column increases, the the retention time of the analyte…

A: Gas chromatography is a technique used for the separation of compounds and analyzing the compound…

Q: The retention factor for analytes in a sample lie between 1 and 5 why?

A: The analyte is the substance to be separated during chromatography. It is also normally what is…

Q: For ion exchange chromatography, elution step is used to unbound components to obtain the desired…

A: Ion-exchange chromatography is an important analytical technique which is based on the attraction…

Q: Question attached

A: TLC It is abbreviated as thin layer chromatography. It is a technique used to isolate non-volatile…

Q: For any chromatographic technique, tall and narrow peaks are preferred to short and broad peaks.

A: Given statement: For any chromatographic technique, tall and narrow peaks are preferred to short and…

Q: column.

A:

Q: What are the properties that determine retention time in the Chromatography process?  Please shortly…

A: Retention time is interval between the sample injection and detection of substance.    The…

Q: What would happen to the retention time of a compound if the followingchanges were made?a. Decrease…

A: Chromatography is the technique to separate components of a mixture.

Q: A mixture of species of A, B, and C is injected into a liquid chromatographic column with length of…

A: Selectivity  factors measure as the distance between two chromatography peak. Retention  factor (k)…

Q: 16. In this chromatographic technique the mobile should consists of buffer solution or with known…

A: The mobile phase of Ion Exchange Chromatography (IEC) is usually a buffer solution or a pH known…

Q: 9. Which of the following solvents is used in normal phase elution in HPLC? a) Ethanol: Water b)…

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Q: wo components in an HPLC separation have retention times that differ by 22 s. The first peak elutes…

A:

Q: Analysis of an unknown plant extract yield two peaks X and Y in a chromatogram, 15.65 and 17.03 min…

A:

Q: Analysis of an unknown plant extract yield two peaks X and Y in a chromatogram, 15.65 and 17.03 min…

A:

Q: A chromatography column would be most efficient with which of the plate heights? 0.50 mm 0.10 mm O…

A: Correct answer is option B i.e 0.10 mm

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: Which of the following is correct? Select the correct response: HPLC columns are packed with…

A: Hplc

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

A:

Q: Which of the following factors DOES NOT affect retention time of a sample undergoing normal phase…

A: Retention time is the time period where a sample spend on column. Here we have to tell which factor…

Q: Two different methods were investigated for Cu2+ detection in water sample and both methods…

A: To choose the correct option:

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: The detecton limits reported for Al with ICP-AES and GF-AAS are 2 ppb and 5 picograms, respectivly.…

A: Given:Al with ICP-AES = 2 ppb = 2 µg/L = 2×10-6 g/L.Mass of Al with GF-AAS = 5 picogram = 5×10-12…

Q: It refers to the general term of adsorbent media used to visualize chromogenic compounds. A.…

A: Chromatogram refers to the general term of adsorbent media used to visualize chromogenic compounds.…

Q: Retention volume in a chromatographic experiment 1) increases with decreasing length of the column…

A: Retention volume VR is the volum of eluent carrier gas admitted to the column between the injection…

Q: An open tubular chromatography column is 28.7 m long with an inner diameter of 0.503 mm . The inside…

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

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

A: Answer.

Q: A chromatographic peak has a retention time of 120 s. the width at the base of the peak equals 3.2s,…

A: Gas chromatography is an analytical technique used for the separation of chemical components of a…

Q: Separation of Peaks Below are two chromatograms after LC separation. Which chromatogram is better to…

A: LCMS is Liquid chromatography–mass spectrometry which is used for mass analysis of unknown or known…

Q: A chromatography column with a length of 10.3 cm and inner diameter of 4.61 mm is packed with a…

A:

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: True or False: Thin-layer chromatography yields thepositive identification of a material.…

A: Thin Layer chromatography in one of the important chromatographic technique which is most widely…

Q: Peak area is used for quantitative analysis in gas-liquid chromatography.   True False

A: Is the given statement true or false has to be identified.

Q: 1. This chromatographic parameter is a measure of efficiency. 2. A high value of the means high…

A: To fill in the blanks for HPLC:

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: A chromatogram of a two-component mixture on a 25-cm packed LC column is shown in the figure below.…

A:

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: Two components of a 12-mg sample are adequately separated by chromatography through a column 1.5 cm…

A: Given: 1) There are two components of a 12-mg sample = Small column mass 2) The column is 1.5 cm in…

Q: In HPLC, fill in the blanks with the choices below: - chromatogram retention time void volume…

A: To fill in the blanks for HPLC:

Q: 35. The stationary phase, as well as mobile phase, are liquid in Adsorption column chromatography…

A: Answer: Chromatography is a separation technique, in which we separate the components of a mixture…

Q: What type of materials can be used as the stationary phase for column chromatography? O Inorganic…

A:

Q: All chromatographic techniques can be used as separation methods. True O False

A: