Multiskan
MS
ismeight-chnelvePrica1 Lightpath
filterphotome~adesigned.topeSFom
and agglutination meamements.
There
is
a
versarile builtin software available
in
Multihn
MS.
It comprises ssveml
software
package$ @rog~;un
modules). Each package
it
acombination of measurement
and
dculation modes.
Extended memory capacity is achieved by
pro
The wavelength
(400
-
750
nrn or optional
340
-
450
nm)
is
selected using maximum eight high qualily interference
Firers held in
a
filter wheel.
The
readings
can
be
p
ssed
via
a
serial
RS-232C
inlePfaceor
via
a paraLlel Cenmnics
printer interface.
The
opuonal bullt-m thermal printer provides &o a recad
of
the results.
2.2.1
Photometric
uremen(s
Multiskan MS urilizes the original Labsysterns' concept of venical phocomeoy in which the light
through the whole sample.
In venical photomehy, theabsorption of light
is
pmgorrional
to
the amount of light absorbing substance
in
lhe well.
Absorption is expressed by che following equation:
a
A
=
-----
m,
S
where
A=
ah
ty of the subsmce.
m
=;
of absorbing subsmce
and
S
=
noss-
sectional
aaea
The advantages of the vertisal light path mwmement
(I)
inaccurate pipeuislg of norrabsorbirrg
Liquids
d
absorbanse values
(2)
evaporation
of
nonabsohing
tiqd&
during the
lion
dm nok
affect
the
m
wed
absorbance values
and
ofinhomogertei(y in
solucion,forexampleasaresullollayeringinlwbidity
measuremen&.
does ncx
affect
the results.
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