Table of Contents
Advertisement
2.4 Specifications
When carrying out a wavelength accuracy check, the light from
D
lamp is cut off at the changeover mirror, and simultaneously
2
the light from the Hg lamp is reflected into the spectrometer.
(1)
Optical system:
(2)
Light source:
(3)
Detecting element:
(4)
Measuring wavelength range: 190 to 650 nm
(5)
Spectrum bandwidth: 1, 2, 4, 8, 16 nm
(6)
Wavelength setup:
Wavelength accuracy: 1 nm
(7)
(8)
Slit type:
(9)
Time constant:
(10) Noise:
(I)
Measuring conditions using standard flow cell:
poured methanol at 0.5 ml/min,
COARSE slit, bandwidth 4 nm, smoothed
chromatogram 250 10 nm, reference 360 nm 50
nm, sampling period 400 ms, response 2 s, ambient
temperature variation within 2 C(20 to 30C), and
after 1 hr warm-up
2 - 5
Single beam photometric system
(dispersion by diffraction grating)
D
lamp,
2
Hg lamp (for wavelength check)
1024-bit photodiode array
via CDS or GUI controller
Two settings; FINE <1 nm>,
COARSE <4 nm>
Selectable in 7 steps of 0.01, 0.02,
0.05, 0.1, 0.5, 1.0, 2.0 sec
Within 0.5 10
-5
AU
2.4
Advertisement
Table of Contents
