| 摘要 |
Analytical systems and methods are provided for simultaneously dispensing metered volumes of fluids at different rates and mixing the fluids to generate a mixed sample having the fluids in proportion to the different rates at which they were dispensed. In some cases two or more of the fluids are premixed prior to mixing with other fluids. In some cases a use composition and diluent are simultaneously dispensed at different rates and premixed to form a diluted sample. One or more reagents may be mixed with the diluted sample and the sample mixture can be analyzed to determine characteristics of the use composition.
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