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Viva-Jr® Drug Testing System - Technical Specifications

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Throughput	66 EMIT tests per hour
Reagent and sample system	One rotor combining both sample and reagent positions Inner rotor ring: 18 positions for reagent bottles Cooled to approximately 8-12°C Outer rotor ring: 25 positions for samples, controls and calibrators 3 positions for reagent bottles at ambient temperature All reagent positions can be assigned as R1, R2 and R3 Reagent 1 volume 110-399 μL Reagent 2 volume 0-298 μL Reagent 3 volume 0-298 μL Preheated reagent and sample needle with level detection and integrated mixer Continuous sample loading 13 mm OD primary tubes All sample positions can contain 5 mL primary tubes or sample cups Sample volume 2-30 μL per test, programmable in steps of 0.1 μL
Sample predilution	Available in the 5 open channels, programmable ratios 1:5, 1:10, 1:20, 1:30, 1:40, 1:50 with 3 possible diluents
Pipetting system	KLOEHN syringes and valve block Reagent syringe 1000 μL Sample syringe 100 μL
Cuvette rotor	Semi-disposable rotor with 48 cuvettes, path length 7 mm Minimum measuring volume 220 μL Measuring temperature 37 °C controlled by Peltier elements
Washing units	Cuvette-washing with 4 x 500 μL of water: The unit is equipped with liquid sensors Waste can be collected in an external waste collection bottle, level float protected, or dispensed directly to a external drain Cuvettes are dried before use Distilled water: 1 L per hour while in use
Light source	Quartz-iodine lamp 12 V - 20 W
Wavelength range	Automatic wavelength selection by an 8-position filter wheel (340, 415, 505, 546, 570, 600, 660 and 700 nM). Half bandwidth 8 to 12 nM
Photometric range	-0.1 to 3.0 Absorbance
Analytical modes	Kinetic measurement with linearity check Bichromatic end point measurement with or without bichromatic reagent blank and/or sample blank correction Two point measurement Automatic rerun with sample reduction
Ambient temperature	15 - 32°C Maximum humidity 85%
Calculation modes	Logit Log Non-linear calibration curves Graphic plot of all measuring points Prozone check for immunology tests Cut-off declaration

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