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  1. www.savemyexams.com › 1/1/3-time-of-flight-mass-spectrometry1.1.3 Time of Flight Mass Spectrometry | AQA A Level Chemistry...

    The time of flight is proportional to the square root of the mass of the ions, showing that the lighter the ion the faster it will pass through and the quicker it will hit the detector. The heavier the ion, the slower it will travel and the longer it will take to hit the detector.

  2. chem.libretexts.org › Bookshelves › Analytical_Chemistry4.4: Time-of-Flight - Chemistry LibreTexts

    The time-of-flight (TOF) mass analyzer separates ions in time as they travel down a flight tube (Figure \(\PageIndex{1}\)). This is a very simple mass spectrometer that uses fixed voltages and does not require a magnetic field.

  3. filestore.aqa.org.uk › resources › chemistryStudent worksheet: Time of flight mass spectrometry - example...

    KE = kinetic energy of particle (J) = mass of the particle (kg) = velocity of the particle (m s–1) d = length of flight tube (m) 08.1. Show how these expressions can be used to show the time of flight. as: = √ [2 marks] 08.2. A sample of copper was analysed and found to contain two isotopes, 63-copper and 65-copper.

  4. filestore.aqa.org.uk › resources › chemistryTeaching guide: time of flight mass spectrometry (AS/A-level year...

    These teaching notes relate to section 3.1.1.2 Mass numbers and isotopes of our AS and A-level Chemistry specifications (7404, 7405). This resource aims to provide background material for teachers preparing students for AS and A-level Chemistry. It is provided as an additional resource to cover specification topics with which teachers may not ...

  5. chemistnotes.com › analytical_chemistry › time-of-flight-mass-analyzerTime of flight mass analyzer(TOF): Easy working principle,...

    29 sie 2023 · Time of flight mass analyzer principle. The principle of a Time-of-flight mass analyzer relies on the simple idea that ions with varying mass-to-charge ratios and the same kinetic energy move at different speeds in an electric field, which will determine the composition or structure of substances.

  6. www.ncbi.nlm.nih.gov › pmc › articlesQuadrupole Time-of-Flight Mass Spectrometry: A Paradigm Shift in...

    Introduction. Q-TOF-MS is an analytical technique that advantageously combines the benefits of two different mass analysers. Utilising the high compound fragmentation efficiency of quadrupole technology in combination with the rapid analysis speed and high mass resolution capability of time-of-flight, a unique ‘hybrid’ analyser was introduced. 1 Originally developed in the early 1980s, the ...

  7. www.sciencedirect.com › topics › materials-scienceTime-of-Flight Mass Spectrometry - an overview - ScienceDirect

    Time-of-flight mass spectrometry (TOF-MS) analysis is a mass spectrometry method used for the determination of substance composition or structure based on the principle that ions with the same kinetic energy and different mass-charge ratios move at different velocities in a constant electric field.

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