Forensic Analysis - Chrom7

These flashcards cover key terms and definitions related to mass spectrometry and laboratory techniques discussed in the lecture.

Dispersive Type Instruments

Characterized by short ion residence times and direct ion paths from source to detector.

Single Ion Monitoring (SIM)

Technique where one or multiple m/z values are scanned, resulting in improved sensitivity.

Quadrupole Mass Spectrometer

The most widely used mass spectrometer, developed by Paul Wolfgang for stable mass separation.

Mass Resolution

A measure of the ability to distinguish between ions of different m/z values.

Electrostatic Analyser (ESA)

A device that produces ions homogeneous in kinetic energy using coaxial condenser plates.

Time of Flight (TOF) Mass Spectrometer

Simplest MS concept, utilizing drift times to measure m/z without theoretical limitations.

Quadrupole Ion Trap MS

A mass spectrometer that traps ions and operates effectively at 10^-4 Torr of helium buffer gas.

Sensitivity

The ability of a mass spectrometer to detect low abundance ions.

Mass Spectrometry

A technique used to measure the mass-to-charge ratio of ions.