Description
Product details
A compact, double-beam UV-VIS spectrophotometer wrapped in a sleek form. The UV-1800 uses the Czerny-Turner mounting for its monochromator, and boasts the highest resolution in its class, a bright optical system, and a compact design. Available as either a stand-alone instrument or a PC-controlled instrument, the UV-1800 is USB-memory ready, which enables users to save measurement data to highly versatile USB memory, and perform data analysis and printing using a PC. In addition to achieving a resolution of 1 nm, the highest in its class, by using a monochromator with a Czerny-Turner mounting, the UV-1800 also features a compact, bright optical system. Having a resolution of 1 nm makes it easy to satisfy the standards of wavelength resolution demanded by the European Pharmacopoeia. The UV-1800 also conforms to the specifications demanded by the Japanese Pharmacopoeia in relation to wavelength accuracy and photometric accuracy. Additionally, hardware validation based on the Japanese Pharmacopoeia can be performed using validation software that is incorporated as a standard feature and an optical filter for wavelength calibration that is calibrated at a bandwidth of 1 nm. Spectrum of Benzene/Ethanol Solution Spectrum of Toluene/Hexane Solution Benzene exhibits a sharp absorption waveform in a neighborhood of 250 nm. With such a waveform, there is a large difference between the spectra obtained at resolutions of 1 nm and 2 nm. Spectra obtained for benzene/ethanol solution using the UV-1800 and an instrument with a resolution (bandwidth) of 2 nm are shown below. Due to the difference in resolution, differences in peak intensity of up to 40% can be observed. Using the ratio of the peak value obtained in a neighborhood of 269 nm for toluene/hexane solution and the valley value obtained in a neighborhood of 266 nm as an indicator of resolution, the European Pharmacopoeia demands a ratio more than 1.5. The ratio for the spectrum shown below is 1.94, illustrating the ease with which the UV-1800 satisfies the standards of wavelength resolution demanded by the European Pharmacopoeia. The width of the UV-1800 is 450 mm, making it one of the most compact instruments in its class. This allows installation in tight spaces. Open up the last two pages of this catalog to get a better idea of the dimensions. Using USB memory makes it easy to transport analysis data and to store large amounts of data in a PC. *USB memory can be connected directly to the UV-1800. Data for spectra and time-course curves can be displayed and saved with commercial spreadsheet software. Using UV Probe control/data processing PC software makes it possible to directly read data that is transferred to the PC. UV Probe An all-in-one software product that has the following four functionalities: Spectrum mode Photometric mode (including quantitation) Kinetics mode (time-course measurement of photometric values and enzymatic activity operations) Report Generator (printing and creation of printing template) Spectra and data can be freely combined and arranged. The thickness and color of spectral lines and the size of characters can be set freely. Labels can be attached to spectra. Registering layouts as templates allows reports to be printed with a single operation. With the UV-1800, the curve-related data (spectra and time-course curves) that is obtained can be converted to, and saved in, CSV format. Transferring this data with USB memory allows it to be read directly at a PC using commercial spreadsheet software. Enabling the UV-1800 security functions makes it possible to restrict functions according to the user level. Users can log in as: Administrator Developer Operator Three different authorization levels can be set in accordance with these user classifications. Instrument Validation Functions The checks for nine JIS items can be performed automatically or semi-automatically. The stray-light check performed using aqueous potassium chloride (KCl) solution and the resolution check performed using toluene/hexane solution specified by the European Pharmacopoeia are possible. Linking with a 6-series multi-cell (optional) is possible, making sample replacement unnecessary. Inspections can be performed efficiently. Instrument Maintenance and Inspections The usage times of the deuterium (D2) lamp and the halogen (WI) lamp can be recorded and displayed, which enables users to ascertain the expected replacement period of the lamps when performing periodic inspections. GLP/GMP compliance is supported with the following functions. Security Functions The use of functions can be restricted according to the user level. Audit Trail Function Details of processes (e.g., baseline correction) that affect measurement data are tracked in the instrument’s history. Data History Function If a change is made to measurement data, a history of this is added to the data. Spectrophotometer Specifications (UV-1800) Item Specification Wavelength range Spectral bandwidth Wavelength display Wavelength setting Wavelength accuracy Wavelength repeatability Wavelength slew rate Wavelength scanning speed Lamp interchange wavelength Stray light Photometric system Photometric range Photometric accuracy Photometric repeatability 190 to 1,100 nm 1 nm (190 to 1,100 nm) 0.1nm increments 0.1nm increments (1nm increments when setting scanning range) ± 0.1 nm at D2 peak 656.1 nm, ± 0.3 nm for entire range ± 0.1 nm About 6,000 nm/min 3,000 to 2 nm/min Automatic interchange linked to wavelength. The interchange wavelength can be set freely in the range of 295 to 364 nm (0.1nm increments). Less than 0.02% at 220 nm (NaI) Less than 0.02% at 340 nm (NaNO2) Less than 1.0% at 198 nm (KCl) Double beam optics Absorbance: -4 to 4 Abs Transmittance: 0% to 400% ± 0.002 Abs at 0.5 Abs ± 0.004 Abs at 1.0 Abs ± 0.006 Abs at 2.0 Abs (measured using NIST930D/NIST1930 or equivalent.) Less than ± 0.001 Abs at 0.5 Abs Less than ± 0.001 Abs at 1 Abs Less than ± 0.003 Abs at 2 Abs Item Specification Baseline stability Baseline flatness Noise level Light source Monochromator Detector Sample compartment Power requirements Environmental requirements Dimensions Weight Output device PC compatibility Less than 0.0003 Abs/Hr (700 nm, one hour after light source turned ON) Less than ± 0.0006 Abs (1,100 to 190 nm, one hour after light source turned ON) Less than 0.00005 Abs (700 nm) 20-W halogen lamp and deuterium lamp Built-in light source auto position adjustment Blazed holographic grating in Czerny-Turner mounting Silicon photodiode Internal dimensions: 110 (W) x 250 (D) x 115 (H) mm Distance between light beams: 100 mm AC100,120,220,230,240 V, 50/60 Hz, 140 VA Temperature: 15°C to 35°C Humidity: 30% to 80% (without condensation; 70% max. at 30°C or higher) 450 (W) x 490 (D) x 270 (H) mm 15 kg USB memory (optional) Data files saved in text format or UV PC format. UV PC-format files can be read directly by UV Probe. Provided with UV Probe software. External control possible via USB.
