G E N e w s
Pittcon 2010
Glass Expansion Newsletter Issue 21 – page 1
Glass Expansion Newsletter • February 2010 • issue 21
A pp l i c at i o n Sp o t l ig h t
CH A R A CT E R I Z AT I O N O F A CUSTO M I Z E D VA LV E
F O R E N H A N C E D P R O D UCT I V I T Y I C P 1
internal mixing
I n t h i s I s s u e
Application Spotlight 1-5
GE News 1
New Products 5-7
Instrument news 6-7
From Horiba Jobin Yvon
From PerkinElmer
From Spectro
From Teledyne Leeman Labs
From Thermo Fisher Scientific
Introduction
Flow injection (FI) is not new;
it was first described in the
literature in 1975 (1). Flow
Injection Atomic Spectrometry
was first described in 1979
and since then numerous
papers using FI with a variety
of atomic spectrometry
detectors have been
published. A good review of
these was published in 1997
(2). Early on, FI was used
primarily with single analyte
techniques such as flame
AAS, cold vapor AAS and
hydride generation AAS. More
recently, with the maturation
of multi-element techniques,
it has been applied to ICPOES
and ICP-MS. The
heart of the FI system is the
switching valve that controls
the flow of sample and rinse.
Figure 1a and 1b shows
the two positions of such
a valve. In routine use with
ICP techniques, the valve is
switched back and forth many
times per hour and in our
opinion has become the weak
link in the process. Therefore,
Glass Expansion engineers,
after searching in vain for
an adequate “off-the-shelf”
valve, have developed a valve
customized for this process.
Cont. overleaf
1. Adapted from paper #M07 presented
at the ‘Winter Conference on Plasma
Spectrochemistry’, January 4, 2010, in
Fort Myers, Florida; authored by Jerry
Dulude, Vesna Dolic and Scott Bridger.
A wide selection of Glass
Expansion products
will be on display at
Pittcon 2010, Orlando,
Florida, USA, February
28 - March 5, 2010.
The display will include
nebulizers, spray
chambers, torches, RF
coils, ICP-MS cones
and accessories. Glass
Expansion specialists will
be on hand to answer
your questions and
assist you to choose the
optimum components for
your ICP. Please visit us
at Booth 3071.
Fill sample loop, rinse nebulizer and
spray chamber
nebulizer
waste piston pump
peristaltic
pump
internal rinse
standard
autosampler
rinse sample
Niagara valve
Fig. 1 a: Flow diagram for Niagara Plus a) filling sample loop,
rinsing nebulizer and spray chamber (see overleaf for Fig 1 b).
PITTCO N 2009.
(Pictured) Jerry Dulude,
President of GE US A
PITTCO N 2009.
(Pictured) Vesna Dolic,
ICP Specialist of GE
Australia