Metrohm USA, Inc. SPELEC VIS-NIR Instrument (350-1050 nm) DRP-SPELEC1050

Operating modes - Bipotentiostat ; Potentiostat ; Galvanostat PC interface - USB Power - 12 V DC Potential range in volt - ±4V Maximum current in Ampère - ±40 mA Number of current ranges - 8 Number of current ranges remarks - ±1 nA to ±10 mA Number of potential ranges (galvanostat) - 2 Number of potential ranges remarks (galvanostat) - ±100 mV to ±1 V Multichannel instrument - NO Maximum number of channels - 1 Maximum number of WE sharing AUX and REF - 2 Potential accuracy - ±0.2% Current accuracy - ≤0.5% of current range at 100 nA to 10 mA Potential resolution - 1 mV Current resolution - 0.1% of current output range Measured potential resolution - 0.012 % of potential range Measured current resolution - 0.025 % of current range Spectrometer (SPM) Detector - Linear silicon CCD array SPM Pixels - 2048 SPM Pixel size - 14 µm x 200 µm SPM Pixel well depth - 62,500 electrons SPM Wavelength range - 350-1050 nm SPM Optical resolution - ≈ 0.3-10.0 nm FWHM SPM Signal-to-noise ratio - 250:1 (at full signal) SPM A/D resolution - 16 bit SPM Dark noise - 50 RMS counts SPM Dynamic range - 8.5 x 10 rised to 7 (system) ; 1300:1 for a single acquisition SPM Integration time - 1 ms to 65 seconds SPM Stray light - ≤0.05 % at 600 nm; <0.10 % at 435 nm Light Source (LS) wavelength range - 200-400 nm (deuterium) ; 400-2500 nm (tungsten halogen) LS Stability - ≤ 1 .10-3 AU LS Time to stable output - 8 min LS Ignition delay - <2.0 seconds (delay for cold start-up may be longer) LS Bulb life - ≥ 1000 hours at 240 nm (50 % intensity loss) (deuterium lamp), ≥ 2000 hours (tungsten lamp) LS Fiber optic connector - SMA 905 Dimensions - 24 x 11 x 25 Weight of the instrument in kg - 1.95