2.6.1
2.6.1
2 - 9
2 - 9
2.6
2.6 Measurement
Measurement Function
Function
With the UV
With the UV Solutions program, the following measureme
Solutions program, the following measurement
nt
modes are available.
modes are available.
•
•
Quantitative
Quantitative calculation
calculation
•
•
Wavelength
Wavelength scan
scan
•
•
Time
Time scan
scan
The spectrophotometer has a function to
The spectrophotometer has a function to prepare a calibration
prepare a calibration
curve and calculate the
curve and calculate the concentration.
concentration.
(1)
(1) Preparation
Preparation of
of Calibration
Calibration Curve
Curve
(a)
(a) Up
Up to
to 20
20 standards
standards can
can be
be measured.
measured. A
A calibration
calibration
curve is prepared by connecting the
curve is prepared by connecting the obtained values
obtained values
with polygonal lines, or a
with polygonal lines, or a regression line is prepared
regression line is prepared
using
using least-squares
least-squares calculation.
calculation. It i
It is
s also
also possible
possible to
to
measure each standard up to 20 times and prepare a
measure each standard up to 20 times and prepare a
calibration curve based on the obtained average
calibration curve based on the obtained average
values.
values.
(b)
(b) A calibratio
A calibration curve
n curve can be
can be redrawn
redrawn by remeasu
by remeasuring a
ring a
particular standard.
particular standard.
(c)
(c) It is
It is possible
possible to displ
to display a
ay a calibration
calibration curve o
curve on the
n the
screen and read out a value of each point using the
screen and read out a value of each point using the
cursor.
cursor.
(d)
(d) A calibr
A calibration cur
ation curve can
ve can be outp
be output to
ut to the prin
the printer.
ter.
(e)
(e) A calibratio
A calibration curve
n curve can be
can be drawn by
drawn by entering
entering its factor
its factor
value.
value.
(f)
(f) The
The result
result of me
of measurement
asurement and
and a ca
a calibration
libration curve
curve are
are
displayed
displayed on
on the
the same
same screen.
screen. It is
It is therefore
therefore possible
possible
to carry out
to carry out measuremen
measurement while observing the
t while observing the
calibration curve.
calibration curve.
(g)
(g) According
According to the
to the coefficient
coefficient of de
of determination
termination calculated
calculated
automatically, judgmen
automatically, judgment can be
t can be made on the degree of
made on the degree of
matching between standard values and a
matching between standard values and a calibration
calibration
curve.
curve.
(h)
(h) It is possi
It is possible to p
ble to prepare a
repare a calibration
calibration curve by
curve by using
using
two/three-wavel
two/three-wavelength
ength calculation.
calculation.
2.6.1 Measurement
2.6.1 Measurement
Mode
Mode
2.6.2 Quantitative
2.6.2 Quantitative
Calculation
Calculation
