55442-U

Supel^™ QuE Verde

Tube, centrifuge tube volume 15 mL, pack of 50 ea

• 동의어(들): Supel^™ QuE, QuEChERS
• UNSPSC 코드: 41104018
• NACRES: NB.21

속성

• material: polypropylene tube
• Quality Level: 100
• 제품 라인: Supel^™
• 구성: magnesium sulfate, 1200 mg ; Supelclean^™ ENVI-Carb^™ Y, 80 mg ; Supelclean^™ PSA, 400 mg ; Z-Sep+, 480 mg
• 포장: pack of 50 ea
• 기술: QuEChERS: suitable
• 원심분리 튜브 용적: 15 mL
• 기질 활성군: PSA phase; carbon phase; zirconia-based phase
• 응용 분야: food and beverages

설명

일반 설명

Dispersive SPE (dSPE), often referred to as the "QuEChERS" method (Quick, Easy, Cheap, Effective, Rugged, and Safe), is modern sample prep technique that is becoming increasingly popular in the area of multi-residue pesticide analysis in food and agricultural products.

Using the QuEChERS method, food/agricultural samples are first extracted with an aqueous miscible solvent (e.g., acetonitrile) in the presence of high amounts of salts (e.g., sodium chloride and magnesium sulfate) and/or buffering agents (e.g. citrate) to induce liquid phase separation and stabilize acid and base labile pesticides, respectively. Upon shaking and centrifugation, an aliquot of the organic phase is subjected to further cleanup using SPE. Unlike traditional methods using SPE tubes, in dispersive SPE, cleanup is facilitated by mixing bulk amounts of SPE (e.g., Supelclean PSA, ENVI-Carb, and/or Discovery DSC-18) with the extract. After sample cleanup, the mixture is centrifuged and the resulting supernatant can either be analyzed directly or can be subjected to minor further treatment before analysis.

Supelco carries a line of vials and centrifuge tubes containing pre-determined amounts of salts and SPE sorbents to support the most common method configurations used today.

적합성

Designed to provide high recovery all pesticides, including problematic planar pesticides, in samples containing high levels of chlorophyll (e.g. cannabis, spinach, lettuce, oregano, etc.). Ideal for cleanup of extract after initial food extraction and phase partitioning.

법적 정보

AOAC is a registered trademark of AOAC International

ENVI-Carb is a trademark of Sigma-Aldrich Co. LLC

Supel is a trademark of Sigma-Aldrich Co. LLC

Supelclean is a trademark of Sigma-Aldrich Co. LLC

안전성 정보

• 픽토그램: GHS05
• 신호어: Danger
• 유해 및 위험 성명서: H314
• 예방조치 성명서: P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1B
• Storage Class Code: 8B - Non-combustible, corrosive hazardous materials
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable