Q. Sample injection is considered successful if

View solution

Q. Doubling the column's length increases resolution by a factor of

View solution

Q. Which of the following are not used as stationary phases in a GC column?

View solution

Q. Column bleeding occurs when

View solution

Q. Sample retention in the column is measured by

View solution

Q. What useful information can be found from a Van Deemter plot?

View solution

Q. Which of the following detectors give concentration-dependent signals?

View solution

Q. The GC trace obtained after an experiment is called a

View solution

Q. Which of these effects result from slow injection of a large sample volume?

View solution

Q. Which of the following is not used for detection in GC?

View solution

Q. Which of the following gases is unsuitable for use as a GC carrier gas?

View solution

Q. In column switching chromatography

View solution

Q. Which of the statements is correct?

View solution

Q. Derivatisation of a sample is carried out to

View solution

Q. Resolution is proportional to the

View solution

Q. What is the typical internal diameter of fused silica capillary columns?

View solution

Q. Negative staining is a technique used in

View solution

Q. In FT-NMR, how are nuclei excited?

View solution

Q. Why is it advantageous to record many FID signals from the same sample and then add them together?

View solution

Q. The sequence of amino acids in proteins can be determined by means of

View solution