Eppendorf BioPhotometer Plus

Features of the Eppendorf BioPhotometer Plus include:

– Bandwidth:5 nm at 230–340 nm, 7 nm at 405–650 nm
– Light Source: Xenon flash lamp
– Power Requirements: Approx. 20 W in operation, approx. 10 W in Standby mode
– Weight: 3 kg
– Optical system: Absorption single beam photometer with reference beam    
– Light beam height: 8.5 mm    
– Measuring wavelengths:230, 260, 280, 340, 405, 490, 550, 595, 650 nm    
– Wavelength systematic error: ±1 nm at 230–280 nm, ±2 nm at 340–650 nm    
– Photometric measuring range: 0 to 3 A (2 A at 340 nm); Dye Methods: 2 A at 550 nm/650 nm    
– Photometric random error: ±0.002 A at 0 A; ±0.005 A at 1 A    
– Photometric systematic error: ±1 % at 1 A    
– Method dependent calculation:     
                        – Absorbance    
                        – Concentration via factor    
                        – Concentration via calibration with 1 to 10 standards    
                        – One-point calibration (1 standard)    
                        – Linear regression (2 to 10 standards)    
                        – Nonlinear regression (3rd degree polynom; 4 or 5 to 10 standards),  
                          1 x, 2 x or 3 x determination    
                         – Ratio 260/280, ratio 260/230, molar concentration, total yield    
                         – For dye methods: FOI (frequency of incorporation)    
– Calibration memory: For all calibration procedures    
– Results memory: For 100 results with absorbance and ratio values, sample number, sample dilution, date and time
– Interface: RS232C, serial, PC connection optional    
– Power supply:100–240 V, ±10 % 50–60 Hz, ±5 %    
– Accessories: Thermal printer DPU 414, 40 characters/line; Secondary UVVIS filter set for verifying photometric and wavelength accuracy (NIST traceable)    
– Cuvettes: UVette, Hellma TrayCell, and common rectangular cuvettes of suitable glass or plastic materials
– Dimensions (W x H x D):20 x 10 x 32 cm