Mass spectrometer Definition and 62 Threads

  1. B

    Radius of the path of a charged particle in a mass spectrometer

    Homework Statement Consider the mass spectrometer shown schematically in Figure P19.30. The electric field between the plates of the velocity selector is 850 V/m, and the magnetic fields in both the velocity selector and the deflection chamber have magnitudes of 0.910 T. Calculate the radius...
  2. C

    Magnetic Forces and Magnetic Fields (mass spectrometer)

    Homework Statement Two isotopes of carbon, carbon-12 and carbon-13, have masses of 19.93x10^-27 kg and 21.59x10^-27 kg, respectively. These two isotopes are singly ionized (+e) and each is given a speed of 6.667x10^5 m/s. The ions then enter the bending region of a mass spectrometer where the...
  3. L

    Designing and building a mass spectrometer.

    I am a double major in EE and physics and I was thinking that a great senior project would be to design and build my own mass spectrometer. I would not only like to build the basic device, but also calibrate the device so that it provides the m/q value based on the radius of curvature caused by...
  4. L

    Is Building a Mass Spectrometer for a Senior Project Feasible?

    I am a double major in EE and physics and I was thinking that a great senior project would be to design and build my own mass spectrometer. I would not only like to build the basic device, but also calibrate the device so that it provides the m/q value based on the radius of curvature caused by...
  5. B

    Determining the Mass of a Selenium Ion in a Bainbridge Mass Spectrometer

    The electric field between the plates of the velocity selector in a Bainbridege mass spectrometer is 20 V/m, and the magnectic field in both regions is 10 T(out and inside the spectrometer). A stream of singly charged selenium ions moves in a circular path with a radius of 1 m in the magnectic...
  6. K

    Mass Spectrometer: Unusual Concepts Explored

    hey im looking for a conceptual question regarding the mass spectrometer, any concepts that are not usually mentioned in textbooks thanks !
  7. 1

    What is the RAM of carbon in a sample based on data from a mass spectrum?

    [FONT="Comic Sans MS"]1.Some data obtained from the mass spectrum of a sample of carbon are given below. Ion 12C+ 13C+ Absolute mass of one ion/g 1.993 x 10-23 2.158 x 10-23 Relative abundance/ % 98.9 1.1 Use the data...
  8. J

    Mass Spectrometer and Electric Field Problem

    Hi, My Question: Suppose the electic field between the two electric plates in the mass spectrometer is 2.48 x 10^4 V/m and the magnetic fields B=B'=0.68 T. The source contains carbon isotopes of mass number 12,13,14 from a long dead piece of tree(To estimate atomic masses multiply by...
  9. S

    Solving Mass Spectrometer Question: 24Mg & 25Mg Isotopes

    Hey Everyone, I just got to my last homework question, and well I got a bit stuck. An ion source contains two isotopes of magnesium ( 24Mg, 25Mg). These ions travels undeflected through the velocity selector (B=0.850T, [E]=4.60x10^5V/m) of a mass spectrometer. If both isotopes are singly...
  10. 1

    Mass spectrometer radius of the path

    Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions (Au2+), each with a mass of 3.27 x 10^-25 kg. The ions are accelerated from rest through a potential difference of 1.40 kV. Then, a 0.600 T magnetic field causes the ions to follow a circular path. Determine the...
  11. C

    Solving Ionic Compound Analysis and Relative Atomic Mass with Mass Spectrometer

    Here are two chem questions that I can't figure them out...please give me some hints on solving them 1.) Ionic compounds( not simple molecular) can also be analyzed by mass spectrometer. Syggest how the sample can be vaporized. It can't be heating I think. 2.) Elements X and Y form a...
  12. M

    What is the charge of the particle being accelerated in a mass spectrometer?

    Given: A proton is accelerated up to KE before it exits into a magnetic field and is deflected. Question: What voltage battery is required accelerate the proton to that energy? So I use U = qV the question is.. what is Q.. is q the charge of the proton being accelerated through the...
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