추천 제품
제품명
Supel™ QuE, Z-Sep+ Bulk, pkg of 20 g
material
polypropylene tube
제품 라인
Supel™
구성
Z-Sep+ Bulk
포장
pkg of 20 g
기술
QuEChERS: suitable
표면적
480 m2/g
Matrix
silica gel base material
기질 활성군
zirconia-based phase
입자 크기
50 μm
공극 크기
70 Å pore size
응용 분야
food and beverages
유사한 제품을 찾으십니까? 방문 제품 비교 안내
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.
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.
기타 정보
Supel™QuE Z-Sep+ enhances sample cleanup for complex matrices by effectively removing more fat and color from sample extracts than traditional phases for QuEChERS LC-MS methods. By eliminating problematic matrix interferences, Z-Sep products provide more robust LC-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+ is recommended for cleanup of samples containing greater than 15% fat.
법적 정보
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
애플리케이션
제품 번호
설명
가격
Storage Class Code
11 - Combustible Solids
WGK
nwg
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
이미 열람한 고객
Lianzhu Wang et al.
Se pu = Chinese journal of chromatography, 33(5), 501-507 (2015-09-22)
A fast method based on QuEChERS methodology for the simultaneous determination of 32 sulfonylurea herbicide residues in sweet corns and green soybeans was developed using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The clean-up effects of three dispersive sorbents were evaluated in
Darina Lankova et al.
Analytical and bioanalytical chemistry, 408(10), 2515-2525 (2016-02-11)
In this study, a novel analytical approach for the determination of 11 monohydroxylated polycyclic aromatic hydrocarbon metabolites (OH-PAHs) in urine was developed and validated. The rapid, simple and high-throughput sample preparation procedure based on ethyl acetate extraction and subsequent purification
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
Keiko Iwakoshi et al.
Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan, 57(5), 150-154 (2016-10-28)
Rapid multi-residue analysis of pesticides in pulses was developed using LC-MS/MS. Pesticide residues in 5 g of homogenized pulses were extracted with 30 mL of acetonitrile and salted out with 4 g of anhydrous magnesium sulfate and 2 g of
프로토콜
Supelco's Z-Sep+ sorbent effectively removes fat and pigment interferences from avocado, with good pesticide recoveries; it removes more matrix than traditional PSA/C18 sorbent, and produces a lower background for GC-MS analysis.
GC Analysis of Polynuclear Aromatic Hydrocarbons (PAHs) in Salmon on SPB®-608 (20 m x 0.18 mm I.D., 0.18 µm) after QuEChERS Cleanup using Supel™ QuE Z-Sep, Fast GC Analysis
Chromatograms
suitable for GC, application for SPEsuitable for GC, application for SPE자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..
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