Discussion
Which of the following is a transducer used in mass spectrometer ?
Answer: B
The transducer used in a mass spectrometer is the electron multiplier.
After ions are separated by their mass-to-charge ratio, they must be counted. In an electron multiplier, each ion striking the first dynode releases several secondary electrons, which are accelerated to the next dynode and multiplied again, giving a gain of about a million and a measurable current for even single ions. It is the standard detector in GC-MS and LC-MS instruments.
The electron capture detector is a gas chromatography detector for halogenated compounds, the bolometer is a thermal detector for infrared radiation, and the phototube detects light in UV-visible spectrophotometers.
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development