Q. Which of the following has to be done to increase the resolution of the quadrupole mass spectrometer?

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Q. Which of the following does not affect the resolution of the instrument?

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Q. In cases where differentiation is required between very similar substances, which of the following techniques making use of quadrupole principle is preferred?

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Q. In pyrolysis spectrometry, heating is done until which of the following is reached?

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Q. Which of the following is used to cool the ion source?

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Q. In quadrupole mass spectrometer, the ratio u/v is mass dependent, where ‘u’ is the DC voltage and ‘v’ is the peak amplitude.

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Q. When a value of q is kept constant, the value of m/e is proportional to which of the following when ‘m’ is the mass number, ‘e’ is the electric charge, ‘u’ is the DC potential, ‘v’ is the peak amplitude and ‘f’ is the frequency?

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Q. Which of the following is not an ion transducer or detector?

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Q. Which of the following is similar to photo multiplier transducer?

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Q. Which of the following is used in places where ion currents are very low?

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Q. Discrete type electron multiplier transducers can provide current gain upto which of the following?

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Q. Continuous dynode electron multiplier transducer is a trumpet shaped device made with which of the following?

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Q. The potential maintained across the continuous dynode multiplier transducer is which of the following?

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Q. Which of the following are not the characteristics of an electron multiplier transducer?

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Q. Which of the following are true about dynodes used in discrete dynode electron multiplier?

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Q. In which of the following detectors, the collector is placed in an inclined manner?

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Q. Which of the following is the least sensitive ion detector?

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Q. Photographic plates are coated with which of the following?

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Q. Which of the following detectors are well suited for spark source instruments?

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Q. Photographic plates have greater sensitivity and resolution than electron multipliers.

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