Ultra Start 26XX Series Manual de Instruções descarregar pdf (Página 4)

Lo-Ray-Ligh

grade

diffraction

grating

Achieves Ultra-Low Stray Light,

Enabling 8-Abs Measurements

Conventional models provide 5-Abs coverage. Even high-end models

have been limited to 6 Abs. In contrast, the UV-2700 achieves ultra-low

stray light levels, expanding the range to 8 Abs, with a transmittance

value of 0.000001 % (1 part in 100 million). This system achieves

high-level absorbance measurements with incomparable precision. In

addition to measuring even high-concentration samples as is, eliminating

the need to dilute samples, the system can be applied to evaluating the

transmission characteristics of polarization films.

Wavelengths in the 400 nm to 650 nm range can be measured to 8 Abs.

Absorbance Linearity UV-2700

Spectral Comparison of Aqueous Potassium Permanganate Solutions

UV-2700

9.0

Calibration Curve

Concentration (mg/L)

This shows the relationship between the absorbance and the

concentration of an aqueous potassium permanganate solution.

Good linearity is evident to 8 Abs.

8.0

6.0

4.0

Abs.

2.0

0.0

0.0 2.0 4.0 6.0 8.0 8.5

This spectrum is measured from an aqueous KMnO4 (potassium permanganate) solution. Unlike conventional models, this system is capable of high-level absorbance measurements.

UV-2700

9.0

8.0

6.0

4.0

Abs.

2.0

0.0

400.0 500.0

600.0 700.0

UV-2550

(Conventional Model)

9.0

8.0

6.0

4.0

Abs.

2.0

0.0

400.0 500.0

600.0 700.0

1 2 3 4 5 6 7 8 9 ... 27 28

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