Page 6 - Shimadzu UV-3600 Plus
P. 6

High Resolution, Ultra-Low Stray Light,                                                                            Covers a Wide Wavelength Range from Ultraviolet to Near-Infrared

                     and Wide Measurement Wavelength Range                                                                              The wavelength range of 185 to 3,300 nm enables measurement over the ultraviolet, visible, and near-infrared regions. In
                                                                                                                                        addition, the acquired spectra exhibit little noise across the entire range.

                     The UV-3600i Plus is equipped with a high-performance, grating-grating double monochromator, and
                     achieves a low stray-light level with high resolution. The wavelength range is 185 to 3,300 nm. This               The figure on the right shows a spectrum obtained by measuring   100.000
                     instrument can perform spectrophotometry for various types of samples, ranging from those requiring                toluene in the range of 185 to 3,300 nm using a cell with an optical
                     high resolution, such as gas samples, to highly concentrated liquid samples.                                       path length of 2 mm.                               80.000
                                                                                                                                             Spectra in the ultraviolet, visible, and near-infrared regions can be
                                                                                                                                        obtained.                                          60.000
                     High-Resolution Spectra of Benzene Gas                                                                                                                               T%
                     The spectrum shown on the left was obtained by enclosing benzene gas in a cell with an optical-path length of 10 mm and                                               40.000
                     performing measurement. The spectral bandwidth is 0.1 nm. The triplet in the neighborhood of 250 nm (enlarged on the right)
                     can be clearly observed. This instrument allows high-resolution spectra to be measured with little noise.
                                                                                                                                                                                           20.000
                             1.800
                                                                           0.350
                             1.500                                                                                                                                                         0.000
                                                                           0.300                                                                                                             185.0   1000.0     2000.0     3000.0  3300.0
                                                                                                                                                                                                              nm
                                                                           0.250
                             1.000
                           Abs.                                          Abs.                                                           The figure on the right shows the spectrum for a low-transmittance   0.150
                                                                           0.200
                                                                                                                                        film on a silica wafer in the range of 200 to 1,600 nm. Although the
                             0.500                                                                                                      film is a special type of film with a transmittance of almost zero, it has
                                                                           0.150
                                                                                                                                        been measured with high precision and little noise. (A mesh filter is
                                                                                                                                                                                            0.100
                                                                                                                                        used on the reference-beam side to maintain balance with the
                                                                           0.100
                             0.000                                          249.0  249.5  250.0  250.5  251.0
                              240.0  245.0  250.0   255.0  260.0                         nm                                             sample-beam side.)
                                             nm                                                                                                                                           T%
                     Ultra-Low Stray-Light Level of 0.00005 % Max. (340 nm)                                                                                                                 0.050
                     The figure below on the left is a spectrum for aqueous NaNO2 solution, and the figure on the right shows an enlarged view of the
                     neighborhood of 340 nm. In the figure on the right, the red spectrum is for aqueous NaNO2 solution and the blue spectrum is the
                     0 % line obtained when a shutter block is inserted on the sample-beam side. The UV-3600i Plus achieves an ultra-low stray-light                                        0.000
                     level of less than 0.00005 % at 340 nm.                                                                                                                               -0.010
                                                                                                                                                                                             200.0  500.0       1000.0      1500.0 1600.0
                     (A mesh filter is used on the reference-beam side to maintain balance with the sample-beam side.)                                                                                          nm
                              100.000                                     0.00010
                                                                                                                                        Molecules of alcohol such as 1-butanol are thought to consist of a   2.500  20℃
                              800.00                                                                                                                                                              40℃
                                                                                                                                        mixture of non-hydrogen-bonded isolates and aggregates formed
                                                                                                                                                                                                  60℃
                                                                          0.00005                                                       through relatively weak hydrogen-bonding between OH groups. As the   2.000
                              60.00
                             T%                                          T%                                                             temperature rises, the hydrogen-bonding becomes weaker and the
                              40.00                                                                                                     aggregates separate into isolates.
                                                                                                                                                                                            1.500
                                                                          0.00000
                                                                                                                                             The figure on the right shows near-infrared spectra for 1-butanol
                                                                                                                                        obtained at 20 °C,
                              20.00                                                                                                                                                       Abs.
                                                                                                                                                                                            1.000
                                                                                                                                        40 °C, and 60 °C. The peaks in the neighborhood of 1,400 nm that
                              0.100                                       -0.00005                                                                                                              Isolate-OH
                                330.0  340.0  350.0  360.0  370.0  380.0  390.0  330.0  335.0  340.0  345.0  350.0                      become larger as the temperature increases are OH peaks for a
                                             nm                                          nm
                                                                                                                                        non-hydrogen-bonded isolate. The peaks in the neighborhood of   0.500
                     Linearity up to Absorbance Level 6                                                                                 1,600 nm that become smaller as the temperature increases are OH
                                                                                                                                                                                                                 Aggregate-OH
                     The figure below on the left shows spectra obtained by measuring aqueous KMnO4 solution at six concentration levels. A mesh   peaks for a hydrogen-bonded aggregate.    0.000
                                                                                                                                                                                            1300.0  1400.0  1500.0  1600.0  1700.0  1800.0
                     filter was inserted on the reference-beam side and a differential method was used to perform measurement up to absorbance                                                                 nm
                     level 6. Using negative absorbance enables measurement with little noise, even at high absorbance levels. The figure below on
                     the right shows the calibration curve using peak absorbances in the vicinity of 525nm for aqueous KMnO4 solution, and shows   Even a multipurpose large sample compartment and an integrating
                     that linearity is maintained up to absorbance level 6.
                                                                                                                                        sphere unit are equipped with three-detectors capability as with the
                                6.000                                                    Calibration curve                              UV-3600i Plus main unit.
                                                                                    6..000
                                                                                                                                             The figure to the right shows near-infrared spectra measured from a   ISR-603:InGaAs  ISR-603:InGaAs
                                                                                                                                                                                                PMT ISR-3100:PbS    PMT ISR-3100:PbS
                                                                                                                                        silicon wafer using the UV-3600i Plus model with an ISR-603 unit
                                                                                                                                        (InGaAs and cooled PbS detectors) attached. The InGaAs detector
                                4.000
                                                                                    4..000                                                                                                    T%                  T%
                                                                                                                                        results in less noise and enables higher sensitivity measurements than
                              Abs.                                                Abs.                                                  the PbS detector, even for solid samples.
                                                                                    2..000
                                2.000
                                                                                                                                                                                                     Red:ISR-603        Blue:ISR-603
                                                                                                                                                                                                     Violet:ISR-3100    Violet:ISR-3100
                                                                                    0..000
                                0.000                                                0..000  100.000  200.000  300.000  400.000
                                  250.0  300.0  400.0  500.0  600.0  700.0              Concentration (mg/L)
                                                 nm
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