Centri 255 基于冷阱富集聚焦的预浓缩技术与GC-MS联用定量分析水中痕量异味物质：SPME固相微萃取和Hisorb高容量吸附萃取棒的性能对比

This study describes the use of the new Centri sample automation and concentration
platform to extract and quantify trace-level odorants in water, using two headspace
sampling methods – multi-phase SPME fibers or HiSorb high-capacity sorptive
extraction probes – in conjunction with trap-based preconcentration and GC–MS.
Performance for the target analytes IPMP, IBMP, 2-MIB, 2,4,6-TCA and geosmin was
within the requirements of ISO 17943 and GB 5749, with linearities >0.996 and mean
MDLs of the order of 1 ppt. We also describe the key attributes of each sampling
method, and discuss the options offered by Centri that allow the optimum choice to be
made based on specific application requirements.