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Signs of Life: A Report Based on the April 2000 Workshop on Life Detection Techniques
Gas chromatography-mass spectrometry; an analytical tool that separates molecules by chromatography and then analyzes them for their mass.
Interplanetary dust particle.
Laser scanning confocal microscope.
Matrix assisted laser desorption and ionization; a way of elevating large molecules into the gas phase to permit their analysis in a mass spectrometer that involves embedding these in a matrix, and then putting energy into the matrix to sputter it and the molecule of interest into the “gas phase.”
Most probable number.
Polymerase chain reaction.
Svedberg; a unit of sedimentation coefficient, equal to 10−13 second.
Selected area electron diffraction.
Scanning electron microscopy; images objects as small as 1 nanometer.
Secondary ion mass spectrometry.
meteorites Three small classes of basaltic meteorites (shergottites, nakhlites, and chassignites) thought to have been ejected from Mars 's surface during an impact.
Transmission electron microscopy.
Time of flight; a type of mass spectrometry that assesses the mass of an ion by the time that it takes to move in an electric field.