General MS
The source of error on the reported average masses of elements on the periodic table arise from this.
What is environmental variability?
Operating under high vacuum conditions ensures that ions have a long one of these, improving sensitivity and resolution, in TOF instruments.
What is mean free path?
This type of MS ionization involves the collision of electrons with a reagent gas.
What is chemical ionization?
Switching ionization sources from an FD to an ESI leads to seeing many impurity peaks. These are caused by this.
What is increased sensitivity?
Dr. Tucker performed these three types of MS as a PhD student.
Where are MALDI MS, SIMS, and LC-MS?
This is required to separate masses that are nominally considered to be isobaric.
What is ultrahigh resolution?
Differences in initial kinetic energies of isobaric ions is compensated for by the following three technologies.
What are Delayed Ion Extraction, Reflectron, and Electrostatic Sectors?
Dr. Tucker theorizes that Prof. Graham Cooks conceptualized DESI while doing this mundane task.
What is pressure washing his driveway?
The inclusion of IMS into MS instruments allows for this in comparison to instruments without an IMS cell.
What is an additional diminsion of separation?
Dr. Tucker performed research within this specific field within MS.
What is mass spectrometry imaging?
These two elements have a very distinct isotopic pattern.
What are chlorine and bromine?
The length of a quadrupole is directly proportional to its blank.
What is its mass range?
This technique won the Nobel Prize and is the original API.
What is ESI?
The predominent reason for using SIM or MRM data acquisition versus full scan is this.
What is an increase in signal to noise?
Dr. Tucker has many MS "trophies." The largest of these is what.
What is a reflectron?
She should have been credited with the invention of ESI.
Who is Lidia Gall?
The following mass analyzers do not perform detection by allowing the ion to impact the detector.
What are FT ICR and Orbitrap?
This ionization represents the first non-targeted imaging technique for large molecules.
What is MALDI MSI?
Isotope dilution MS is used specifically for this purpose.
What is quantitation?
Dr. Tucker has never operated this type of MS instrument (mass analyzer).
What is the FT ICR?
An ion must last at least this long to be detected.
What is a microsecond or ten microseconds?
This type of detector is employed in a TOF-SIMS instrument and is capable of detecting ions in 2-D.
What is an MCP?
While some may use this term to describe some of you, in MS it is used to describe a multistep ambient technique that involves desorbing a sample using photons followed by ionization in an electrospray plume.
What is LAESI?
The study of proteins (or proteomics) requires specific instruments depending on which method you take. These instrument(s) are best suited for bottom up while these for top down.
What are the QIT for bottom up and the FT-ICR or Orbitrap for top down?
She is the editor-in-chief of the Journal of the American Society of Mass Spectrometry.
Who is Prof. Vicki Wysocki?