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Merck

55411-U

Supelco

Supel QuE QuEChERS tube

Z-Sep Tube, centrifuge tube volume 2 mL, pack of 100 ea

Sinónimos:

QuEChERS

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About This Item

UNSPSC Code:
41115712
NACRES:
NB.21

product name

Supel QuE, Z-Sep Tube, centrifuge tube volume 2 mL, pack of 100 ea

Quality Level

composition

Z-Sep, 75 mg

packaging

pack of 100 ea

technique(s)

QuEChERS: suitable

centrifuge tube volume

2 mL

application(s)

food and beverages

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General description

La SPE dispersiva (dSPE), conocida también como el método «QuEChERS» (acrónimo de rápido, fácil, barato, efectivo, resistente y seguro en inglés), es la técnica de preparación de muestras moderna que se está volviendo cada vez más popular en el área de los análisis de múltiples residuos de plaguicidas en los productos alimentarios y agrícolas.

Utilizando el método QuEChERS, las muestras alimentarias o agrícolas se extraen primero con un disolvente miscible acuoso (por ejemplo, acetonitrilo) en presencia de elevadas cantidades de sales (como el cloruro de sodio y el sulfato de magnesio) o agentes amortiguadores (como el citrato) para inducir separación en fase líquida y estabilizar los plaguicidas lábiles a ácidos y bases. Tras agitar y centrifugar, una alícuota de la fase orgánica se somete a un ulterior lavado utilizando la SPE. A diferencia de los métodos tradicionales en los que se usan tubos de SPE, en la SPE dispersiva, la limpieza se facilita mezclando cantidades a granel de SPE (Supelclean PSA, ENVI-Carb o Discovery DSC-18) con el extracto. Después de la limpieza de la muestra, la mezcla se centrifuga y el sobrenadante resultante puede o bien analizarse directamente o bien someterse a otro tratamiento menor antes de analizarse.

Supelco lleva una línea de viales y tubos de centrífuga que contienen cantidades predeterminadas de sales y adsorbentes de SPE para respaldar las configuraciones más comunes del método utilizadas en la actualidad.

Other Notes

Supel QuE Z-Sep products enhance sample cleanup for complex matrices by effectively removing more fat and color from sample extracts than traditional phases for QuEChERS methods. By eliminating problematic matrix interferences, Z-Sep products provide more robust LC-MS and GC-MS methods. This proprietary technology can replace C18 and PSA in your current methods without additional method development.

Z-Sep+ is recommended for cleanup of samples containing greater than 15% fat.
Z-Sep/C18 is recommended for cleanup of samples containing less than 15% fat.
Z-Sep is recommended for cleanup of samples prior to analysis of hydrophobic analytes.

Legal Information

Certain uses of this product may be covered by the claims of one or more pending patent applications. For licensing inquiries please contact techserv@sial.com
AOAC is a registered trademark of AOAC International
Supel is a trademark of Sigma-Aldrich Co. LLC

Storage Class

11 - Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable


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Pol Herrero et al.
Journal of chromatography. A, 1339, 34-41 (2014-03-25)
A Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) extraction method followed by liquid chromatography-(Orbitrap) high resolution mass spectrometry was developed for the simultaneous determination of five benzotriazole, four benzothiazole and five benzenesulfonamide derivates in sewage sludge. While the method
Łukasz Rajski et al.
Journal of chromatography. A, 1304, 109-120 (2013-07-23)
Several extraction methods were evaluated in terms of recoveries and extraction precision for 113 pesticides in avocado: QuEChERS with various d-SPE clean-ups (Z-Sep, Z-Sep+, PSA+C18 and silica), miniLuke and ethyl acetate. Extracts were analysed using liquid chromatography coupled with triple
Tomasz Tuzimski et al.
Journal of AOAC International, 100(6), 1671-1680 (2017-07-15)
In this study, a simple, cost-effective, and sensitive HPLC diode-array detection method was developed for the simultaneous determination of six different 5-nitroimidazoles [metronidazole, 2-hydroxymethyl-1-methyl-5-nitro-1H-imidazole, dimetridazole (DMZ), ronidazole, ornidazole, and ipronidazole] in bovine milk samples. A QuEChERS-based sample preparation procedure was
Hui Li et al.
Journal of chromatography. A, 1528, 53-60 (2017-11-07)
Herein, an accurate and reliable isotope-labelled internal standard method was developed and validated for simultaneous determination of three polar pesticide adjuvants, namely 2-pyrrolidone, N-methyl-2-pyrrolidone, and N-ethyl-2-pyrrolidone in plant-derived agro-products. Matrices, including apple, cabbage, tomato, cucumber, rice, and wheat were extracted
Ana Lozano et al.
Talanta, 118, 68-83 (2013-11-28)
Two sorbents containing ZrO₂ (Z-Sep and Z-Sep+) were tested as a d-SPE clean-up in combination with the QuEChERS and ethyl acetate multiresidue method in the pesticide residues extraction in avocado. All extracts were analysed using gas chromatography coupled with a

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Assessment of clean-up sorbents for extracting PAHs from salmon and PCBs from milk, optimized for GC analysis with MS and ECD detection.

Assessment of clean-up sorbents for extracting PAHs from salmon and PCBs from milk, optimized for GC analysis with MS and ECD detection.

Assessment of clean-up sorbents for extracting PAHs from salmon and PCBs from milk, optimized for GC analysis with MS and ECD detection.

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