Data You Want to See Many biochemistry applications require information at specific, important wavelengths, instead of a full spectrum analysis. For example, the Bradford, BCA and Lowry assays for protein analysis rely on specific wavelengths. LEDspec is ideally suited for oceanographic applications such as detecting nM concentrations of nitrite/ nitrate, phosphate and iron using WPI’s LWCC sample cells. Two or four independent channel FIA detection systems can be assembled using a LEDspec-2 or LEDspec-4, respectively. LEDspec is a stand-alone LED-based bio-photometric detection system designed to give you the information you want to see. Now you can conduct flow analysis and single-scan applications with high precision and a large dynamic range. LEDspec can be equipped with up to 7 LEDs of different wavelengths. Its noise (< 0.1 mAU peak to peak) and drift performance (<0.5 mAU/h) exceeds that of a CCD or photodiode array detection system at a fraction of the cost. LEDspec uses dual–beams to reduce light source drift. Conventional single beam spectrometers notice baseline drift caused by warm up, temperature stability and bulb aging. An internal reference channel in the LEDspec corrects for baseline while you make sample measurements. LEDSPEC SPECIFICATIONS OPTICAL BASICS CHANNELS DETECTOR SPECTRAL BANDWIDTH (FWHM) DYNAMIC RANGE DETECTOR RESOLUTION NOISE (PEAK TO PEAK) WARMUP TIME FIBER OPTIC INPUT DRIFT DIGITAL INPUTS AND OUTPUTS ANALOG OUTPUT DIMENSIONS (W*H*D) WEIGHT INTERFACE MAINS LED-based multiple wavelength detector with build-in reference channel 2 or 4 Photodiode 10 nm (LEDs >400nm) 4 nm (260, 280, 340nm LEDs) 0-3 AU 24 Bit < 0.1 mAU Instant 600 μm < 0.5 mAU/h 8/8 +/- 10 V, scaleable output 290 x 80 x 250 mm (11.4” x 3.2” x 9.9”) 2 kg (2.2 lbs) USB 2.0 100 – 240 V / 50 - 60 Hz Data Collection and Analysis Now, you can analyze output data with LEDspec's easy-to-use software and export chromatographs directly to your PC (via USB) in Microsoft® Excel format. Software provides: ● Full computer control of LEDspec ● Continuous flow or single-shot analysis of up to four independent channels simultaneously or sequentially. ● Immediate calibration and analysis (mean and standard deviation) of up to four channels SPEC TROS CO PY INTRODUCTORY PRICE LEDSpec-2 LEDspec biophotometric detection system, 2 channel, 3 VIS LED modules (choose when ordering) LEDSpec-4 LEDspec biophotometric detection system, 4 channel, 3 VIS LED modules (choose when ordering) 89273 UV LED module, 260 nm 89272 UV LED module, 280 nm 89274 UV LED module, 340 nm 89245 VIS LED module, 400 nm 89246 VIS LED module, 450 nm 89247 VIS LED module, 540 nm 89248 VIS LED module, 560 nm 89275 VIS LED module, 600 nm 89276 VIS LED module, 650 nm 89249 VIS LED module, 700 nm PERIPRO-4LS Peri-Star Pro, 4-channel, low rate, small tubing (see page 162) MINISTAR Miniature Peristaltic Pump, 1-channel (see page 164) UK: Tel: +44 (0)1462 424700 • wpiuk@wpi-europe.com World Precision Instruments www.wpiinc.com Germany: Tel: +49 (0)30-6188845 • wpide@wpi-europe.com US: Tel: 941-371-1003 • sales@wpiinc.com 185