简介:这个介绍的很详细
Inductively coupled plasma-optical emission
spectrometry (ICP-OES) is an attractive technique
that has led many analysts to ask whether
it is wiser to buy an ICP-OES or to stay with their
trusted at简介:这个介绍的很详细
Inductively coupled plasma-optical emission
spectrometry (ICP-OES) is an attractive technique
that has led many analysts to ask whether
it is wiser to buy an ICP-OES or to stay with their
trusted atomic absorption technique (AAS) (1).
More recently, a new and more expensive technique,
inductively coupled plasma-mass spectrometry
(ICP-MS), has been introduced as a routine
tool (2).
ICP-MS offers initially, albeit at higher cost, the
advantages of ICP-OES and the detection limit
advantages of graphite furnace-atomic absorption
spectrometry (GF-AAS). Unlike the famous
prediction by Fassel, "…that AAS would be dead
by year 2000….", low cost flame AAS will
always have a future for the small lab with simple
needs.
This article will briefly describe these three techniques,
and point out the important criteria by
which to judge their applicability to your own
analytical problems. Table 1 below shows a
checklist of common analytical requirements and
may help in the assessment of the techniques.详细>