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Key Documents

55418-U

Supelco

Supel™ QuE QuEChERS tube

Z-Sep Bulk

Sinónimos:

QuEChERS

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About This Item

UNSPSC Code:
41115712
NACRES:
NB.21

product name

Supel™ QuE, Z-Sep Bulk

material

polypropylene tube

Quality Level

100

product line

Supel™

composition

Z-Sep Bulk

packaging

pkg of 20 g

technique(s)

QuEChERS: suitable

surface area

310 m2/g

matrix

silica gel base material

matrix active group

zirconia-based phase

particle size

22 μm

pore size

14 nm pore size

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
Supel is a trademark of Sigma-Aldrich Co. LLC

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificados de análisis (COA)

Lot/Batch Number
189398
186827
183547
181601
180111

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Supel™ QuE Tube, centrifuge tube volume 15 mL, pack of 50 ea

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Discovery® DSC-18 pkg of 100 g

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Discovery® DSC-18

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
Bruce D Morris et al.
Journal of agricultural and food chemistry, 63(21), 5107-5119 (2015-02-24)
A new, automated, high-throughput, mini-column solid-phase extraction (c-SPE) cleanup method for QuEChERS extracts was developed, using a robotic X-Y-Z instrument autosampler, for analysis of pesticide residues in fruits and vegetables by LC-MS/MS. Removal of avocado matrix and recoveries of 263
Martina Rejtharová et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 35(2), 233-240 (2017-10-06)
A sensitive and robust confirmatory method for determination of steroid esters in blood serum is essential for reliable monitoring of possible illegal use of steroid hormones as growth promoters in meat production. A previously used sample preparation methodology was improved.
Jonatan V Dias et al.
Journal of chromatography. A, 1462, 8-18 (2016-08-11)
The goal of this work was to evaluate the efficiency of several sorbents on removal fats from edible oils (olive, soya and sunflower) during the clean-up step for posterior determination of 165 pesticides by UHPLC-QqQ-MS/MS system. The extraction procedure employed
P Parrilla Vázquez et al.
Journal of chromatography. A, 1426, 161-173 (2015-12-15)
Several clean-up methods were evaluated for 253 pesticides in pollen samples concentrating on efficient clean-up and the highest number of pesticides satisfying the recovery and precision criteria. These were: (a) modified QuEChERS using dSPE with PSA+C18; (b) freeze-out prior to
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Contenido relacionado

Supel™ QuE Z-Sep Sorbents for QuEChERS

Z-Sep sorbents improve fat and pigment extraction in QuEChERs solid phase extraction for sample preparation.

Supel™ QuE Z-Sep Sorbents for QuEChERS

Z-Sep sorbents improve fat and pigment extraction in QuEChERs solid phase extraction for sample preparation.

Supel™ QuE Z-Sep Sorbents for QuEChERS

Z-Sep sorbents improve fat and pigment extraction in QuEChERs solid phase extraction for sample preparation.

Supel™ QuE Z-Sep Sorbents for QuEChERS

Z-Sep sorbents improve fat and pigment extraction in QuEChERs solid phase extraction for sample preparation.

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