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Visiprep™ SPE Vacuum Manifold

DL (Disposable Liner), 24-port model

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About This Item

UNSPSC Code:
12352200
NACRES:
NB.21
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Quality Level

100

material

PTFE frit, polypropylene tube

product line

Visiprep™

technique(s)

solid phase extraction (SPE): suitable

application(s)

food and beverages

General description

SPE is a form of chromatography, and, as with other chromatographic techniques, control of flow rate is critical for maintaining reproducible extractions. Unlike other vacuum manifolds, the Visiprep system contains a patented valve system that allows for precise flow control through each SPE tube via rotating, independent, screw-type valves situated in each port within the manifold cover. Visiprep vacuum manifolds allow you to process up to 12 (12-port version) or 24 (24-port version) SPE samples simultaneously. Spacing between ports are slightly smaller on the 24-port versions than the 12-port versions so consideration of tube sizes is recommended.
The Visiprep DL (Disposable Liner) Vacuum Manifold eliminates the possibility of cross-contamination when processing a new sample on the same port. The liner consists of a PP female luer hub that attaches to the SPE, and thin-walled PTFE tubing that is threaded through the SPE port. This ensures that all SPE port and valve surfaces coming in contact with the sample can be replaced following each extraction.

Application

Visiprep™ SPE Vacuum Manifold was used to perform solid phase extraction to separate polyphenols from grapes, in order to determine the polyphenol content using LC-MS analysis. It was also used for concentration and purification of solvent extracts from surface water and sewage water sediments. Furthermore it was also used to extract and determine estrone in water using solid-phase extraction-enzyme-linked immunosorbent assay (SPE-ELISA).

Features and Benefits

  • Patented screw-type valves within each SPE port for precise flow control
  • Glass basin will not dissolve, fog, or discolor when exposed to solvents
  • Legs on cover allow user to easily rest cover on work surface when removed from the manifold
  • Screw-type solvent-resistant vacuum bleed gauge and valve offer better sealing and vacuum control. Valve takes 1/4″ vacuum tubing.
  • PP collection vessel rack accommodates autosampler vials; small scintillation vials (22.75 mm O.D. recommended); 10 and 16 mm test tubes; and 1, 2, 5, and 10 mL volumetric flasks. An optional plate for 20 mL scintillation vials is available for 12-port models.
Supplied with 100 disposable liners (Part No. 57059).

Legal Information

Visiprep is a trademark of Sigma-Aldrich Co. LLC

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Protocols

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

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。

UHPLC/MS for Drug Detection in Urine

Optimize β-glucuronidase hydrolysis for glucuronide metabolite analysis considering factors like time, temperature, pH, and enzyme concentration.

PAHs Determination in Paprika Powder using SPE

Paprika spice's PAH contamination risk due to environmental exposure highlights food safety concerns.

Articles

QuEChERS Cleanup and Analysis of Veterinary Drugs in Milk by LC/MS/MS

Use QuEChERS methods to analyze samples of milk for veterinary drugs.

Related Content

固相萃取(SPE)_SPE原理_SPE应用-默克生命科学

固相萃取(SPE)是一种用在色谱分析（如 HPLC、GC、TLC 色谱）前快速、选择性制备和纯化样品的技术，主要用于置换样品基质、浓缩分析物、去除干扰成分和污染物，以改善数据结果、保护分析色谱柱。

Solid Phase Extraction (SPE)

Solid phase extraction purifies samples for chromatographic analysis, improving data quality and protecting analytical columns.

Visiprep Solid Phase Extraction Vacuum Manifolds

Product Specification (T495121)

View All Related Content
Guangdi Wang et al.
Journal of environmental monitoring : JEM, 14(5), 1353-1364 (2012-03-23)
Endocrine disrupting compounds (EDCs), represented by steroid hormones, organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and bisphenol A have been determined in four sediment cores from the Gulf of Mexico, from New Orleans surface water (Lake Pontchartrain and Mississippi River), and
Angeles M Alonso Borbalán et al.
Journal of chromatography. A, 1012(1), 31-38 (2003-09-26)
There is considerable interest in the analysis of phenolic compounds due to their involvement in the organoleptic characteristics of foods and drinks, and their contribution to protection against cardiovascular diseases and cancers through their antioxidant activity. This article describes studies
Development of a solid-phase extraction-enzyme-linked immunosorbent assay method for the determination of estrone in water.
Li, Zhilan, et al.
Analytica Chimica Acta, 503, 171-177 (2004)

Global Trade Item Number

SKUGTIN
5705904061835552641
5702704061833667859
5726504061835552764