Last Updated
：2025/11/20
mass spectrometry
Noun
countable
uncountable
(physics,
analytical
chemistry)
An
analytical
technique
that
measures
the
mass
/
charge
ratio
of
the
ions
formed
when
a
molecule
or
atom
is
ionized,
vaporized
and
introduced
into
a
vacuum.
Mass
spectrometry
may
also
involve
breaking
molecules
into
fragments
-
thus
enabling
its
structure
to
be
determined.
Japanese Meaning
質量分析法 – 分子や原子をイオン化し、そのイオンの質量対電荷比を測定することで、化学・物理学的特性や構造を分析する技術。 / 分子のフラグメント化を利用し、構造決定や定量分析に応用される解析手法。
Sense（1）
(physics,
analytical
chemistry)
An
analytical
technique
that
measures
the
mass
/
charge
ratio
of
the
ions
formed
when
a
molecule
or
atom
is
ionized,
vaporized
and
introduced
into
a
vacuum.
Mass
spectrometry
may
also
involve
breaking
molecules
into
fragments
-
thus
enabling
its
structure
to
be
determined.
（ plural ）
Quizzes for review
(physics, analytical chemistry) An analytical technique that measures the mass / charge ratio of the ions formed when a molecule or atom is ionized, vaporized and introduced into a vacuum. Mass spectrometry may also involve breaking molecules into fragments - thus enabling its structure to be determined.
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See correct answer
mass spectrometry
The lab used mass spectrometry to identify trace contaminants in the pharmaceutical sample.
See correct answer
The lab used mass spectrometry to identify trace contaminants in the pharmaceutical sample.
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