| 摘要 |
A detection system combines an excitation radiation source (18) providing excitation radiation (10) to an analysis region of a sample (14) within a substrate (16) having a detection surface, a detector (22) for detecting radiation collected from the analysis region comprising the detection surface of the sample resulting from the excitation, and a magnet arrangement (24) beneath the analysis region of the sample, and stationary with respect to the excitation radiation source and light coupling arrangement, for attracting magnetic beads (15) within the sample to the substrate surface The detection radiation is collected from the detection surface of the substrate, to give an enhanced surface specificity The invention combines the advantages of surface detection with a simple low cost magnetic system for bringing the target to the surface
|
