57044
Visiprep™ SPE Vacuum Manifold
DL (Disposable Liner), 12-port model
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About This Item
material
polypropylene tube
Quality Level
technique(s)
solid phase extraction (SPE): suitable
application(s)
environmental
food and beverages
General description
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.
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Protocols
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。
Optimize β-glucuronidase hydrolysis for glucuronide metabolite analysis considering factors like time, temperature, pH, and enzyme concentration.
Paprika spice's PAH contamination risk due to environmental exposure highlights food safety concerns.
Articles
The odor and pungency of ginger is due to the presence of terpenes, gingerols and shogaols. These compounds contribute to the highly complex matrix of ginger, which subsequently presents a challenge in low level analyses of contaminants. A novel 2-layer SPE cartridge efficiently reduces background for pesticide determination.
A procedure for cleanup of green tea extracts provides low background and allowed for the analysis of more pesticides at lower levels than QuEChERS. Uses less solvents and no toluene.
Related Content
Pesticide residue testing of turmeric and other (dried) spices is challenging due to their complex compositions and high matrix. An efficient SPE clean-up can be achieved by a new Dual-layer cartridge.
固相萃取可净化用于色谱分析的样品，提高数据质量并保护分析柱。
Solid phase extraction purifies samples for chromatographic analysis, improving data quality and protecting analytical columns.
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 57059 | 04061835552641 |
| 57027 | 04061833667859 |
| 57044 | 04061835552603 |