Page 8 - Shimadzu UV-2600-2007i
P. 8
Lo-Ray-Ligh grade
diffraction grating
Achieves Ultra-Low Stray Light, Absorbance Linearity UV-2700i
Enabling 8 Abs Measurements 9.0 Calibration Curve
8.0
In the case of a device equipped with a general double monochroma-
6.0
tor, the absorbance that can be covered is about 5 to 6, but the
UV-2700i offers a range to 8 Abs, with a transmittance value of Abs. 4.0
0.000001 % (1 part in 100 million). This system achieves high-level
2.0
absorbance measurements with incomparable precision. In addition to
measuring even high-concentration samples as is, eliminating the need 0.0 0 130 260 390 520
Concentration (mg/L)
to dilute samples, the system can be applied to evaluating the transmis-
sion characteristics of polarization films. Wavelengths in the 400 nm to This shows the relationship between the absorbance and the
concentration of an aqueous potassium permanganate solution.
650 nm range can be measured to 8 Abs. Good linearity is evident to 8 Abs.
Spectral Comparison of Aqueous Potassium Permanganate Solutions UV-2700i
9.0 9.0
8.0 8.0
6.0 6.0
Abs. 4.0 Abs. 4.0
2.0 2.0
0.0 0.0
400.0 500.0 nm 600.0 700.0 400.0 500.0 nm 600.0 700.0
UV-2700i General double monochromator system
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