TSD中文叫热离子检测器，其实是一回事。

TSD实际上应该和NPD差不多，下面是一些介绍：Thermionic Specific Detector（TSD）Designed for nitrogen and phosphorous compounds, the TSD uses a new ceramic bead to sustain long, stable service. Control of the bead current is integrated into the method to ensure receptive performance. Bead current can be programmed to automatically turn off when a large component passes through, gaining better performance for later eluting trace components. 如果哪位懂朝鲜语，可以看看：(Thermionic Specific Detector) TSD. . .