由德国Sierra Sensors公司生产，SPR-2的传感芯片采用黄金棱镜设计，将黄金棱镜固定在支架上。这种设计不需要用户在安装时对流动相进行匹配的繁琐操作，直接插拔，操作方便并保证了分析结果准确性重现性好。Sierra Sensors提供多种表面修饰的传感芯片，靶分子可以直接或间接包被到芯片表面。
| SPR-2 传感芯片 | |
| Affinity Sensors for SPR-2 | Underivatized gold covered quartz surface ready for application of user-defined linker chemistries or target coatings |
| Affinity Sensor SPR2-DT | A rigid, low non-specific binding planar PEG based mixed SAM surface with accessible carboxyl groups for linkage of test and capture molecules through a variety of coupling protocols |
| Affinity Sensor SPR2-MT | A general purpose planar PEG based monothiol mixed SAM surface with accessible carboxyl groups for attachment of test and capture molecules through a variety of coupling protocols |
| Custom Affinity Sensors | Sierra sensors is continuously investigating and developing new sensor surfaces, and when possible will manufacture custom surface upon request. Please contact your sales representative if you have request or idea for a specific sensor surface. |
