| 摘要 |
Solid phase system for use in a ligand-receptor assay for the detection of a selected analyte in a fluid sample comprises a porous matrix in which microspheres are entrapped, the microspheres being bound with a receptor capable of capturing a target ligand. The system is for use in a multiple ligand-receptor assay for simultaneous detection of at least two selected analytes, distinct gps. of microspheres that are entrapped within discrete zones in the porous matrix, each gp. of microspheres being bound with a receptor capable of capturing a different target ligand. The following specific cases are claimed: one gp. of microspheres is bound with a receptor capable of capturing a target ligand; and one gp. of microspheres is bound with either (1) the target ligand or other receptor substance as a positive control; or (2) a substance incapable of capturing the target ligand without a bound component, as a negative control for the detection the analyte. Appts. is also provided. |
