Q. A stripper column used in gas chromatography, can be used to retain which of the following when an air sample is passed through it?

View solution

Q. Which of the following is not a component of the mixture present in the reference cell of Non-dispersive infrared analyzer?

View solution

Q. Hydrogen flame ionization detector can be used to detect only the peak of CO and not methane.

View solution

Q. CO analyzers based on infrared absorption would give greater sensitivity under which of the following conditions?

View solution

Q. Which of the following methods cannot be used for the estimation of hydrocarbons?

View solution

Q. Which of the following is the most abundant hydrocarbon which is emitted into the atmosphere by biological activity?

View solution

Q. Flame ionization detectors are sensitive to which of the following gases?

View solution

Q. How can carbon monoxide be detected using flame ionization detectors while using gas chromatography technique?

View solution

Q. Which of the following organic compounds will have the highest intensity of response when introduced in a flame ionization detector?

View solution

Q. Propane would give three times the intensity of response as compared to methane.

View solution

Q. In flame ionization detectors, which of the following is the range adequate for atmospheric sampling?

View solution

Q. Which of the following methods make use of pyrolysis while used for detecting methane?

View solution

Q. In flame ionization detector, the ions collected on the negatively charged grid are amplified at the high impedance amplifier.

View solution

Q. Which of the following is not the characteristic of flame ionization detector?

View solution

Q. Given below, is the diagram of Ultraviolet Fluorescence method. Identify the unmarked component.

View solution