How does changing the magnetic field strength in a magnetic sector mass spectrometer affect which ions...
How does changing the magnetic field strength in a magnetic
sector mass spectrometer affect which ions reach the
detector?
answers are: increase in magnetic field strength = ions with larger
m/z reaching the detector, increase in magnetic field strength =
ions with smaller m/z reaching the detector, or decrease in
magnetic field strength = ions with larger m/z reaching the
detector
How does changing the accelerating voltage in a magnetic sector
mass spectrometer affect which ions reach the detector?
answers are: increase in accelerating voltage = ions with larger
m/z reaching the detector, decrease in accelerating voltage = ions
with larger m/z reaching the detector, or decrease in accelerating
voltage = ions with smaller m/z reaching the detector
I'm struggling with this because I don't understand how the size
of the various ions affects this. I understand that heavier ions
are not deflected enough to reach the detector, and that lighter
ions are deflected too much to reach it, but I can't find anything
in my book about exactly how changing the magnetic field strength +
voltage affects the heavier/ligher ions in this kind of mass
spectrometry. The book beats around the bush and hints at it but
doesn't give the answers in the context of how changing each
differs in the SIZES of ions reaching the detector.
Thanks.
Homework Answers
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How does changing the magnetic field strength in a magnetic
sector mass spectrometer affect which ions...
Explain how a mass spectrometer is used to separate ions of different mass-to-charge (m/z) ratios by...
Explain how a mass spectrometer is used to separate ions of different mass-to-charge (m/z) ratios by placing the statements in the order in which they occur. First step Gaseous ions are created in the ion source. The ions enter the vacuum chamber of the mass spectrometer A magnetic field is applied to the ions. The ions are deflected by the magnetic field. The velocity of the ions is increased as they pass through metal plates with a voltage applied to...
In a magnetic sector mass spectrometer, would the measured mass increase or decrease if you: 1)....
In a magnetic sector mass spectrometer, would the measured mass increase or decrease if you: 1). Increase the accelerating potential 2). Decrease the magnetic field Thank you for the help!
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In a mass spectrometer, a student needs to find the strength of the electric field that...
In a mass spectrometer, a student needs to find the strength of
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single charged particle with a mass of 7.971x10^-26 kg after
leaving the velocity sector is to hit the ceiling 0.036 m above the
opening where it enters the region with only magnetic field. There
is no E field. The value of the magnetic field is 0.025 T in the
entire mass spec.
A) what is the...
A mass spectrometer, sketched below, is a device used to separate different ions. Such ions with...
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separate different ions. Such ions with a well-defined velocity vo
enter through a slit into a region of uniform magnetic field B,
where they follow a semicircular path until they strike the
detector slit above the entry slit. The distance between the entry
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(Figure 1) shows a mass spectrometer, an analytical instrument used to identify the various molecules in...
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In mass spectrometry, a sample’s molecules are ionized in a vacuum and then exposed to a...
In mass spectrometry, a sample’s molecules are ionized in a
vacuum and then exposed to a uniform electric field created by a
high-voltage plate in the acceleration chamber. The electric field
accelerates the ions until they arrive at the next section of the
device, designated as the separation chamber. In this section, the
drifting ions are sorted by their mass-to-charge ratio (m/q).
The separation chamber in a time-of-flight mass spectrometer
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2. The Mass Spectrometer (8 pts): Sodium ions (charge te) are accelerated from rest at plate A th...
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Explain how a mass spectrometer is used to separate ions of different mass-to-charge (m/z) ratios by placing the statements in the order in which they occur. First step Gaseous ions are created in the ion source. The ions enter the vacuum chamber of the mass spectrometer A magnetic field is applied to the ions. The ions are deflected by the magnetic field. The velocity of the ions is increased as they pass through metal plates with a voltage applied to...
In a mass spectrometer, a student needs to find the strength of
the electric field that is needed in the velocity sector if a
single charged particle with a mass of 7.971x10^-26 kg after
leaving the velocity sector is to hit the ceiling 0.036 m above the
opening where it enters the region with only magnetic field. There
is no E field. The value of the magnetic field is 0.025 T in the
entire mass spec.
A) what is the...
A mass spectrometer, sketched below, is a device used to
separate different ions. Such ions with a well-defined velocity vo
enter through a slit into a region of uniform magnetic field B,
where they follow a semicircular path until they strike the
detector slit above the entry slit. The distance between the entry
and the detector slits is d = 1.90 m.
a.) Chlorine ions of mass 35 amu (1 amu equals 1.66x10-27 kg),
carrying a charge of +1e, enter...
In mass spectrometry, a sample’s molecules are ionized in a
vacuum and then exposed to a uniform electric field created by a
high-voltage plate in the acceleration chamber. The electric field
accelerates the ions until they arrive at the next section of the
device, designated as the separation chamber. In this section, the
drifting ions are sorted by their mass-to-charge ratio (m/q).
The separation chamber in a time-of-flight mass spectrometer
(TOF-MS) is linear and has no electric or magnetic fields....
2. The Mass Spectrometer (8 pts): Sodium ions (charge te) are accelerated from rest at plate A through a voltage difference of Δν-1 kV to plate B. Some of the ions pass through a small slit in plate B to enter into a region of uniform magnetic field (the shaded region in the diagram) (a) Which plate is at a higher potential, A or B? Calculate the speed of the Na+ ions when they reach the slit in 5 plate...
Problem 1 chemists to determine the composition of a sample. Let's explore one type of mass spectrometer, which uses electric and magnetic fields. For each step below, sketch a diagram to help you with the analysis Mass spectrometers, which separate ions based on mass, are often used by a. In Step 1 of mass spectrometry, an accelerator releases a charged particle from rest near one plate of a charged parallel-plate capacitor, so that the particle accelerates toward the other plate...
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