[跳转至内容](https://www.sigmaaldrich.com#main-content) [![Merck](https://www.sigmaaldrich.com/static/logos/purple/merck.svg)](https://www.sigmaaldrich.com/SG/zh) 产品 购物车0 SGZH 产品 产品应用服务资源支持 [登录 / 注册](https://www.sigmaaldrich.com/oidc-sign-in) [订单查询](https://www.sigmaaldrich.com/SG/zh/order-lookup) [快速订购](https://www.sigmaaldrich.com/SG/zh/quick-order) 购物车0 [主页](https://www.sigmaaldrich.com/SG/zh)[应用](https://www.sigmaaldrich.com/SG/zh/applications)[分析化学](https://www.sigmaaldrich.com/SG/zh/applications/analytical-chemistry)[样品制备技术](https://www.sigmaaldrich.com/SG/zh/applications/analytical-chemistry/sample-preparation)固相萃取(SPE) # 固相萃取(SPE) ![Visiprep™ SPE 真空集流器配备了一个阀门系统,可实现精确的流速控制,并提高萃取结果的可重复性。](https://www.sigmaaldrich.com/content/dam/cms-commons/sigmaaldrich/marketing/global/images/applications/analytical-chemistry/spe-vacuum-manifold.jpg "SPE Vacuum Manifold") 固相萃取(SPE)是一种专门用于在色谱分析(如HPLC、GC、TLC)前进行快速、选择性样品制备和纯化的技术。在SPE过程中,通过萃取、分配和/或吸附到固相固定相上,将液体样品中的一种或多种分析物分离出来。 * * * ## 相关产品 Slide 1 of 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[![固相萃取(SPE)和QuEChERS](https://www.sigmaaldrich.com/content/dam/cms-commons/sigmaaldrich/marketing/global/images/categories/analytical-sample-preparation/spe-12-port-vacuum-manifold.jpg "镍钛合金芯SPME纤维")](https://www.sigmaaldrich.com/SG/zh/products/analytical-chemistry/analytical-sample-preparation/spe-and-quechers) [固相萃取(SPE)和QuEChERS](https://www.sigmaaldrich.com/SG/zh/products/analytical-chemistry/analytical-sample-preparation/spe-and-quechers) 探索适用于固相萃取(SPE)和QuEChERS样品制备的各类耗材。提供柱、管、板等多种产品。 [选购商品](https://www.sigmaaldrich.com/SG/zh/products/analytical-chemistry/analytical-sample-preparation/spe-and-quechers) [![各类HPLC和UHPLC产品](https://www.sigmaaldrich.com/content/dam/cms-commons/sigmaaldrich/marketing/global/images/categories/analytical-chromatography/high-performance-liquid-chromatography-products.jpg "HPLC 和 UHPLC 产品")](https://www.sigmaaldrich.com/SG/zh/products/analytical-chemistry/analytical-chromatography/hplc-columns) [HPLC色谱柱](https://www.sigmaaldrich.com/SG/zh/products/analytical-chemistry/analytical-chromatography/hplc-columns) 借助我们种类齐全的HPLC色谱柱系列,实现精准分离。提升保留、分辨率和选择性。立即订购。   [选购商品](https://www.sigmaaldrich.com/SG/zh/products/analytical-chemistry/analytical-chromatography/hplc-columns) [![气相色谱柱、配件及吸附剂](https://www.sigmaaldrich.com/content/dam/cms-commons/sigmaaldrich/marketing/global/images/categories/analytical-chromatography/crimp-top-vials.jpg "气相色谱柱、配件及吸附剂")](https://www.sigmaaldrich.com/SG/zh/products/analytical-chemistry/analytical-chromatography/gc-columns-accessories-and-adsorbents) [气相色谱柱、配件及吸附剂](https://www.sigmaaldrich.com/SG/zh/products/analytical-chemistry/analytical-chromatography/gc-columns-accessories-and-adsorbents) 使用我们的色谱柱、耗材和配件,实现卓越的气相色谱(GC)性能。了解 Supelco® 的产品系列。 [选购商品](https://www.sigmaaldrich.com/SG/zh/products/analytical-chemistry/analytical-chromatography/gc-columns-accessories-and-adsorbents) * * * 概述 相关文章与操作规程 支持 固相萃取(SPE)是一种专为色谱分析(如HPLC、GC、TLC)前的快速、选择性样品制备和纯化而设计的技术。在SPE过程中,通过萃取、分配和/或吸附到固相固定相上,从液态样品中分离出一种或多种分析物。   通过SPE进行样品制备,可将样品的原始基质转变为更简单的基质环境。这使得样品更适合后续的分析色谱,通常能简化并提高最终的定性与定量分析效果。更简单的样品基质还能降低对分析系统的要求,从而可能延长系统的使用寿命。 优化后的 SPE 流程可帮助您: - 转换样品基质,使其与目标色谱方法更兼容。 - 浓缩分析物(痕量富集),以提高灵敏度。 - 去除在色谱分析过程中导致高背景、误导性峰和/或灵敏度较低的干扰物。 - 保护分析柱免受污染物影响。 - 实现萃取过程的自动化。 ## SPE 是如何工作的? 在 SPE 中,固定相(吸附剂或树脂)通过强而可逆的相互作用与分析物或杂质结合,从而从复杂样品中可靠、快速地萃取目标分析物。 SPE 具有选择性和多功能性,因为针对不同的分析物和基质,可选用多种不同的吸附剂和洗脱条件。常见的 SPE 吸附剂包括: - 以二氧化硅为基础的 - 反相(C18、C8、氰基、苯基) - 正相(硅胶、二醇、NH₂) - 离子交换(SAX、WCX、SCX) - 碳基 - 聚合物基(各种组成、不同官能团) - 其他,例如 Florisil®(硅酸镁)或氧化铝 - 混合床:几乎可以按顺序分层组合上述任何两种 ## 固相萃取(SPE)策略 在“吸附-洗脱 SPE”中,目标分析物被吸附剂捕获,而基质干扰物则通过色谱柱。在“干扰物去除 SPE”中,基质干扰物被吸附剂捕获,而目标分析物则通过色谱柱。HybridSPE 和 [](https://www.sigmaaldrich.com)[QuEChERS](https://www.sigmaaldrich.com/SG/zh/applications/analytical-chemistry/sample-preparation/quechers) SPE 方法均通过干扰物去除原理工作。 最佳的SPE方法取决于待测物的结构、溶解度、极性和亲脂性(分配系数)。有相应的[](https://www.sigmaaldrich.com)选择指南可帮助为特定应用选择最合适的固定相和溶剂。 ## SPE的常见应用 SPE广泛应用于制药、临床及高通量诊断检测、法医、环境以及食品/农用化学品行业,涉及以下方面的分析: - 生物体液中的药物化合物及代谢物 - 生物体液中的滥用药物 - 饮用水和废水中的环境污染物 - 食品/农业基质中的农药、抗生素或真菌毒素 - 蛋白质和肽的脱盐 - 脂质的分馏 - 水溶性及脂溶性维生素 [![文档搜索](https://www.sigmaaldrich.com/content/dam/cms-commons/sigmaaldrich/marketing/global/images/ecommerce/document-search.png "文档搜索")](https://www.sigmaaldrich.com/documents-search) [需要更详细的信息吗?](https://www.sigmaaldrich.com/documents-search) 请访问我们的文档搜索页面,查阅数据表、证书和技术文档。 [查找文档](https://www.sigmaaldrich.com/documents-search) ## 相关文章 - [离子交换方法](https://www.sigmaaldrich.com/SG/zh/technical-documents/technical-article/analytical-chemistry/solid-phase-extraction/ion-exchange-methodology) 离子交换法在固相萃取中的应用、抗衡离子选择性和离子交换及基本步骤。 - [LC/MS/MS法测定谷物中的草甘膦、AMPA和草铵膦](https://www.sigmaaldrich.com/SG/zh/technical-documents/technical-article/analytical-chemistry/solid-phase-extraction/method-for-determination-of-glyphosate) 使用 HPLC 和 SPE 的离子交换聚合物基颗粒测定燕麦片和婴儿谷物中的草甘膦及相关化合物。获得低水平的检测结果。 - [Supel™ Swift HLB SPE小柱‒轻松进行固相萃取(SPE)](https://www.sigmaaldrich.com/SG/zh/technical-documents/technical-article/analytical-chemistry/solid-phase-extraction/supelswifthlb) Supel™Swift HLB SPE是一种具有亲脂性和亲水性官能团的聚合物吸附剂,可用于对各种极性不同的分析物进行固相萃取。它可以节省时间,实现更快的流速以及极低的信号增强/抑制比。 - [使用分子印迹聚合物SPE提取安非他明及相关药物](https://www.sigmaaldrich.com/SG/zh/technical-documents/technical-article/analytical-chemistry/solid-phase-extraction/the-extraction-of) 使用分子印迹聚合物SPE提取安非他明及相关药物 - [Determination of Formaldehyde and Acetaldehyde in Air Using DNPH Cartridges and Automated On-Line Desorption Followed by HPLC](https://www.sigmaaldrich.com/SG/en/technical-documents/protocol/environmental-testing-and-industrial-hygiene/air-testing/aldehydes-air-dnph) Carbonyl compounds react within the DNPH cartridge to form immobilized hydrazones, which can be subjected to automated desorption and HPLC analysis with UV detection. - [查看全部 (45)](https://www.sigmaaldrich.com/SG/zh/search/facet-search?focus=sitecontent&term=facet-search) ## 相关协议 - [使用UHPLC/MS(TOF)检测不同酶水解条件处理的尿液中药物和代谢物](https://www.sigmaaldrich.com/SG/zh/technical-documents/protocol/analytical-chemistry/small-molecule-hplc/uhplc-analysis-drugs-glucuronidase) 为了使用β-葡糖醛酸酶优化水解,必须对每种待分析的葡糖苷酸代谢物进行某些因素的评估,例如孵育时间、温度、水解pH、酶源和酶浓度。 - [反相SPE方法](https://www.sigmaaldrich.com/SG/zh/technical-documents/protocol/analytical-chemistry/solid-phase-extraction/reversedphase-methodology) 固相萃取中反相SPE方法。与正相或离子交换SPE相比,反相SPE被认为是选择性最低的保留机制。 - [饮用水中双酚 A 的测定](https://www.sigmaaldrich.com/SG/zh/technical-documents/protocol/environmental-testing-and-industrial-hygiene/drinking-water-testing/bisphenol-a-water) Supelco开发了一种可测定饮用水中的BPA的全面样品制备和分析程序。 - [Empowering Biochemists to Analyze Glycoproteins with Exceptional Reproducibility](https://www.sigmaaldrich.com/SG/en/technical-documents/protocol/analytical-chemistry/large-molecule-hplc/bioshell-glycan-hplc-columns) Fast, high-resolution separations of procainamide labeled glycans - dextran ladder, human IgG and cetuximab - [Biological Testing for Amphetamine and Methamphetamine Abuse](https://www.sigmaaldrich.com/SG/en/technical-documents/protocol/analytical-chemistry/small-molecule-hplc/biological-testing-for-amphetamine-and-methamphetamine-abuse) In this study, optimized methods are presented for sample preparation and chiral chromatography for the LC/MS analysis of amphetamine and methamphetamine enantiomers in urine. - [查看全部 (35)](https://www.sigmaaldrich.com/SG/zh/search/facet-search?focus=sitecontent&term=facet-search) ### 查看更多文章和操作规程 输入关键词 搜索 ## 我们能为您提供什么帮助 如有任何疑问,请提交[客户支持请求](https://www.sigmaaldrich.com/SG/zh/support/customer-support) 或联系我们的客服团队: 发送电子邮件至 custserv@sial.com 或致电 +1 (800) 244-1173 ## 其他支持 - [色谱图搜索](https://www.sigmaaldrich.com/chromatogram-search) 使用色谱图搜索功能来鉴定样品中的未知化合物。 - [计算器与应用](https://www.sigmaaldrich.com/SG/zh/support/calculators-and-apps) 网络工具箱 - 用于分析化学、生命科学、化学合成和材料科学的科学研究工具和资源。 - [客户支持请求](https://www.sigmaaldrich.com/SG/zh/support/customer-support) Customer support including help with orders, 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[Effect of Container Materials on Milk Off-Flavors](https://www.sigmaaldrich.com/SG/en/technical-documents/technical-article/analytical-chemistry/gas-chromatography/container-materials) HS-SPME with Carboxen®/PDMS coated Nitinol fiber allows low MW analyte detection in light-exposed milk plastics. [Pesticide Residue Analysis in Ginger Powder with QuEChERS](https://www.sigmaaldrich.com/SG/en/technical-documents/technical-article/analytical-chemistry/quechers/analysis-of-pesticide-residues-in-ginger-powder) 2-layer SPE cartridge efficiently reduces background for ginger contaminant analysis. 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