Analytical rotor system for method of standard additions testing

摘要

An analytical rotor system comprises a rotor and interface. The rotor defines a plurality of chambers configured to process a sample to perform a Method of Standard Additions (MSA) test in response to centrifugal force. The rotor also defines a plurality of capillaries configured to transfer the sample between the chambers in response to the centrifugal force. The interface is configured to couple to the rotor and to an analytical device that spins the rotor to provide the centrifugal force. A first one of the chambers comprises a sample-only chamber that includes a first portion of the sample in response to the centrifugal force but does not include a standard. A second one of the chambers comprises a first standard addition chamber that includes a first portion of the standard that is added to a second portion of the sample in response to the centrifugal force.