Patent ID: 8178352
Filing Date: 2012-05-15
Classification: B01L,G01N,Y10T

Abstract:
1. A method for analyzing one or more characteristics of a use composition, the method comprising: providing a rotary valve analytical system comprising: rotating the rotor to a first position, such that the syringe barrels within the rotor are aligned with one or more of the inlet passages within the stator and the other openings within the stator face are sealed by the rotor face, wherein one or more of the aligned inlet passages are in fluid communication with the source of the use composition; drawing fluid into each of the syringe barrels from the aligned inlet passages; rotating the rotor to a second position, such that each of the syringe barrels are aligned with one of the outlet passages and the other openings within the stator face are sealed by the rotor face; driving fluid from the syringe barrels and through the aligned fluid outlet passages into the mixer lines; mixing the fluids in the mixer resulting in a sample mixture within the sensor line; measuring one or more properties of the sample mixture with the sensor, the properties being indicative of the one or more characteristics of the use composition; and determining the one or more characteristics of the use composition from the measurement.