Which of the following statements about mass spectrometers are not true?

Question:Which of the following statements about mass spectrometers are not true?

1.Time of flight mass spectrometer has the ability to record the entire mass spectrum at a time

2.Time of flight mass spectrometers have poor resolution

3.Conventional spectrometer detects only one peak at a time

4.All spectrometers have the ability to record the entire mass spectrum at a time

Answer:4