The present invention provides for the allocation of agents to channels associated with the contact center. The formulations may be for pulmonary, nasal, buccal or topical administration, but are preferably for pulmonary inhalation. Specifically, one or more targets are selected from a pool of possible learned and configured targets to be used as representatives of the monitored prefix. Analyte, if present in the sample, binds to the immobilized binding partner in the test area and is subsequently contacted with a conjugate.