Why are the application of TGA more limited than those for DSC?

Q: Why are some of the detectors listed unsuitable for HPLC?

A: HPLC  is applicable for the use with solvent that has UV absorbance. A UV detector cannot be used…

Q: Account for the versatility of thin-layer liquid chromatography.

A: Answer - Thin layer liquid chromatography - Thin-layer  liqid chromatography is a chromatography…

Q: Focusing Lenses Radiation Source Wavelength Selector Detector Atomizer Signal Processor Amplifier…

A: 5) The capillary column are more efficient than packed columns in GC.

Q: If the TLC plates had been developed in a more polar solvent, would retention factors on the whole…

A:

Q: An ideal RF value for a compound on a developed TLC plate is 0.30. How could you adjust the TLC…

A:

Q: Why is longitudinal diffusion a more serious problem in gas chromatography than in liquid…

A: The given statement is "the longitudinal diffusion is a serious problem in gas chromatography than…

Q: Which of the following results from an in-line HPLC mobile phase filter becoming plugged with…

A: Correct option is B.

Q: Anion and cation chromatography can be achieved by modifying?   A. Type of dye B. Mobile phase C.…

A: Chromatography is a technique for the separation of a mixture into its components.

Q: How the 2D Thin layer Chromatography separation processes are worked? Please shortly wtite at your…

A: A 2D - TLC plate is a sheet of glass, metal, or plastic which is coated with a thin layer of a solid…

Q: Which is better HPLC system Agilent 1290 Infinity II LC or Nexera Series UHPLC? Explain

A: HPLC is High Performance Liquid Chromatography UHPLC is Ultra High Performance Liquid Chromatography

Q: Explain why the retention times for both carvone isomers are the same.

A:

Q: What adsorbents are typically used in TLC? On a TLC, a compound traveled 3.5 cm when the solvent…

A: Thin layer chromatography is the technique that is used to separate or purify the compound from a…

Q: How to improve the sensitivity and selectivity of AFS for Hg detection? Please explain.

A: If we increase the intensity of excitation source in AFS ,  high sensitivity will be…

Q: Indicate which other analytical techniques TGA can be coupled with and what would be the advantages?

A:

Q: What is the role of stationary phase and mobile phase in Chromatography? Please shortly write at…

A: Concept is based on Chromatography.

Q: Differentiate between isocratic elution and gradient elution. Why is gradient elution sometimes a…

A:

Q: Define the following terms used in HPLC:             (a) gradient elution             (b)…

A: Given terms, (a) gradient elution (b) isocratic elution (c) reversed-phase packing

Q: Cite problems why t

A:

Q: What is a guard column and why is it used in HPLC but not in GC systems?

A: A guard column is a protective column or cartridge installed between the injector and the…

Q: When the use of 2D Thin layer Chromatography is better than normal TLC? Please shortly answer at…

A:

Q: An LC separation specifies that the mobile phase be 25% tetrahydrofuran (THF) in water.…

A:

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: What are the similarities between fluorescence detectors in HPLC and chemiluminescence detectors in…

A: Chromatography detectors are used to detect compounds that are eluted from the chromatography…

Q: Define Flash Column Chromatography? Please answer at your own words

A: The phenomenon of flash column chromatography is related to the chemical analysis method. The word…

Q: 7-2: Why do quantitative and qualitative analyses often require different monochromator slit widths?

A: 7-2 The monochromator is a wavelength selector that is used to select a particular wavelength from a…

Q: What are the disadvantages of uses the Thick layer stationary phase in Thin layer Chromatography…

A: Thin layer chromatograpy is one of the conventional technique for the separation of mixture of…

Q: 1. 2. Silica 3. the column frits. 4. Surface metal ions act as multiple polar groups. is less stable…

A:

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

A: Separation factor is calculated as: a=tr-tmtm where tr is the retention time and tm is the dead…

Q: List the desirable characteristics of HPLC detectors.

A:

Q: prepare an assignment on Application of HPLC in Drug Analysis(Amiloride): one page show name of the…

A: We have to prepare an assignment on application of HPLC in Drug Analysis showing name, dosage form,…

Q: A gel filtration column has a radius (r) of 0.80 cm and a length (l) of 20.0 cm. Calculate the total…

A:

Q: Define the following terms used in HPLC:                      (d) sampling loops             (e)…

A: The following terms used in HPLC can be defined as :

Q: Paper Chromatography and TLC are examples of planar chromatography. True or FalsE?

A:

Q: pectrofluorometry is potentially more sensitive and selective compared to spectrophotometry

A:

Q: Answer in your own words. What is the advantage of very small particle sizes in Liquid solid…

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Q: Compare gradient and isocratic mode in HPLC.

A: Gradient and isocratic mode in HPLC are the two different modes of operating condition in HPLC.

Q: Explain why TLC cannot be used for some volatile low molecular weight substances such as toluene.

A: Thin layer chromatography, a thin layer is pressed over the chromatographic plate. A drop or small…

Q: What are the disadvantages of uses the Thick layer stationary phase in Thin layer Chromatography…

A: There was so many disadvantages of uses of  thick layer stationary phase in thin layer…

Q: Peak or band broadening is more likely to occur in: gradient elution or isocratic elution?

A: Gradient elution and iscratic elution are two different types of liquid chromatography. Both…

Q: The following explains why TLC is done in a closed container EXCEPT: • To maintain the concentration…

A: The solution is given below -

Q: Gel permeation chromatography depends on the degree of species segregation of a sample

A: Given         Gel permeation chromatography depends on the degree of species segregation of a sample…

Q: a) Thin layer chromatography (TLC) and high performance liquid chromatography (HPLC) can be used as…

A: The solution of the question is given below:

Q: 2. Account for the versatility of thin-layer liquid chromatography.

A:

Q: Match the following chromatographic techniques with these corresponding principles of separation…

A: ✓chromatography, technique for separating the components, or solutes, of a mixture on the basis of…