We at International Diagnostic are instrumental in exporting and supplying precision engineered Drew Scientific's Excell 2280. The Excell 228 is a fully automated 22 parameter CBC system for medium sized laboratories with a throughput of 80 samples per hour. It has state of the art patented platelet counting technique. 22 parameters, 2 scatter grams and 2 histograms Short sample detection Proprietary laser technology, 5 part WBC differential Impedance technology for cell counting Sample size flexibility satisfies a wide range of end user requirements QC with Levey-Jennings charts Easy to use software gives rapid access to all patient information including full blood counts, demographics and patient history Programmable automatic startup and shutdown procedures Multi-language capability Scientific Principle : Multi-dimensional optical scattering using stable laser diode light source to optimize the measurement of WBC differential Electrical resistance for counting (WBC, RBC, Plt) and sizing (Plt,RBC) Optical absorbance of cyanmethemoglobin for hemoglobin measurement (there is also an optional cyanide-free reagent). Full CBC with 5 part differential in under one minute. Sample Volumes : Blood samples must be collected in EDTA tubes. Depending on how the 2280 is operated, the system requires : Direct mode Sample saver mode Automatic sampler** 180 µL whole blood 80 µL whole blood 180 µL whole blood An optional 30 position autosampler is available. The Autosampler mixes, reads the barcode, pierces the tube cap and automatically aspirates the sample. Dilution system : High precision ceramic shear valve and computer controlled diluent dispenser. Automatic rinse inside and outside of the sample probe prevents carryover and reduces risk of transmission of blood borne pathogen to operators. Sensors : Laser diode illuminated flow cytometer with three, solid state sensors and one PMT tube for WBC differential. WBC aperture 100 µm dia x 75 µm length RBC/Plt aperture 78 µm dia x 55 µm length The Plt/RBC channel features the patented "von Behrens" silencer that eliminates RBC recirculation which interferes with low Plt counts in conventional aperture designs.