LCMS FST
Authored by Nurul Amalia
Chemistry
University
Used 12+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes the purpose of mass spectrometry?
To measure the concentration of compounds in a sample.
To generate charged molecules or molecular fragments and measure their masses.
To separate different compounds in a mixture.
To separate different compounds in a mixture.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. Which component of an LCMS system is responsible for separating ions based on their mass-to-charge ratio?
Column
Detector
Ionization Source
Mass analyzer
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is ionization a crucial step in mass spectrometry?
To generate charged ions for easier manipulation with electric and magnetic fields.
To reduce the mass of the compounds for improved resolution.
To increase the volatility of the compounds.
To stabilize the compounds for better analysis.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a common ionization technique used in mass spectrometry?
Electrospray ionization (ESI)
Matrix-assisted laser desorption/ionization (MALDI)
Gas chromatography (GC)
Atmospheric pressure photoionization (APPI)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which ionization technique utilizes a high-voltage potential applied to a fine liquid spray to generate ions?
Electron impact ionization (EI)
Matrix-assisted laser desorption/ionization (MALDI)
Atmospheric pressure chemical ionization (APCI)
Electrospray ionization (ESI)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a type of mass analyzer used in mass spectrometry?
Quadrupole
Time-of-flight (TOF)
Fourier transform ion cyclotron resonance (FT-ICR)
High-performance liquid chromatography (HPLC)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a TOF mass analyzer, how do lighter ions compare to heavier ions in terms of reaching the detector?
Heavier ions reach the detector faster than lighter ions
Lighter ions reach the detector faster than heavier ions
Lighter and heavier ions reach the detector at the same time
The flight times of ions are not dependent on their mass
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Microsoft
or continue with
%20(1).png)
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?
