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。
產品
相關資源
- Selection Guide for Supelco SPME Fibers
Recommended fibers based on analyte type and molecular weight; tips for SPME fiber selection for a variety of applications.
- 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.
- Rugged SPME Sampling
SPME fibers with CAR/PDMS and PDMS/DVB coatings on nitinol core assembly enhance fiber performance for solid phase microextraction.
- 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
® 纖維、雙塗層纖維或覆銅塗層纖維,均配備獨特的晶片,可提供無縫樣品製備及其他包括優點在內的功能:
- 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
OCOATED (OC) 纖維OVERCOATED (OC) SPME 纖維
纖維的覆蓋塗層是纖維塗層的一項新技術,可保護 SPME 纖維不受基質成分的影響。這可讓纖維直接浸入複雜的樣品中,確保更有效率的萃取(例如半揮發性化合物)。聚二甲基矽氧烷 (PDMS) 用於覆蓋 PDMS/ 二乙烯基苯 (DVB) 纖維。
See Overcoated Fibers available.
BioSPME
- 工作流程比基於快速平衡透析的方法快 3 倍
- 通用 96 針格式,與標準耗材相容
- 工作流程簡單,可完全自動化或手動操作
- 工作流程簡單,可完全自動化或手動操作
更多資訊請參閱 Supel™ BioSPME 96-pin 裝置。
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