固相微萃取 (SPME)
固相微萃取 (SPME) 是一種多功能、無溶劑的樣品製備技術。它的工作原理是吸附/吸收和解吸,使用塗有萃取相的纖維來濃縮樣品中的分析物質。它成功地將分析物的取樣、分離和濃縮結合為一個步驟。SPME 廣泛應用於環境揮發性物質、食品與飲料、香精與香料、鑑證與毒物學,以及藥品樣品的取樣。
相關產品資源
- Supelco SPME 纖維選擇指南
根據分析物種類和分子量推薦的纖維;針對各種應用選擇 SPME 纖維的提示。
- The use of SPME-GC/MS to determine the best packaging material for preventing light-induced off-flavors in milk
yethylene (HDPE) plastic jugs instead of glass bottles. In this study, we used solid-phase microextraction (SPME) followed by GC/MS to investigate the effectiveness of a range of plastic materials as barriers to the production of offflavors.
- 堅固耐用的 SPME 取樣
在腈綸纖芯組件上塗覆 CAR/PDMS 和 PDMS/DVB 的 SPME 纖維,可提高固相微萃取的纖維性能。
- Brochure: SPME for GC Analysis
Solid Phase Microextraction (SPME) is an innovative, solvent-free sample prep technology that is fast, economical, and versatile.
- Brochure: Supel™ BioSPME 96-Pin Devices
Supel™ BioSPME 96-Pin Devices were developed to target the stringent specifications needed by bioanalytical laboratories, yet greatly improve upon the speed and simplicity compared with current sample preparation techniques employed for plasma protein binding studies today.
- Application Note: Sample Preparation of Serum Prior to Determination of Free Testosterone
The industry’s gold standard for sample preparation of free hormones from serum has been associated with equilibrium dialysis.
- Protein Binding Determination - Comparison Study of Techniques & Devices
Comparative analysis of Supel™ BioSPME 96-Pin device with a rapid equilibrium dialysis technique for accuracy of measured values, sample cleanliness, and workflow time in drug protein binding.
智慧型 SPME 纖維
- 可追溯性,可檢查使用情況、行程計數、操作日期和溫度暴露情況
- 高通量樣品製備
- 自動為每種纖維塗層應用正確的參數
更多資訊請參閱 Smart SPME Fibers for Automated Sampling。
.nitinol-core SPME 纖維
SPME纖維的 nitinol-core可增強纖維的性能和色譜結果的精確度。具有 Carboxen®/Polydimethylsiloxane (CAR/PDMS) 或 Polydimethylsiloxane/ Divinylbenzene (PDMS/DVB) 塗層的纖維均可使用腈綸芯。腈綸纖維的其他優點包括
- 增強批次與批次之間以及纖維與纖維之間的再現性
- 更高的纖維耐用性
- 與熔融石英核心纖維相比,具有相似的選擇性和惰性
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