추천 제품
product name
Supel™ QuE, Citrate/Sodium Bicarbonate Tube, pk of 50
구성
magnesium sulfate, 4 g
sodium bicarbonate, 5 g (Cat. No. S6014)
sodium chloride, 1 g (Cat No. S7653)
sodium citrate dibasic sesquihydrate, 0.5 g (Cat. No. 71635)
sodium citrate tribasic dihydrate, 1 g (Cat. No. S4641)
포장
pk of 50
기술
QuEChERS: suitable
원심분리 튜브 용적
15 mL
응용 분야
food and beverages
분리 기술
ion exchange
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일반 설명
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.
법적 정보
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 1
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
이미 열람한 고객
프로토콜
Normal-phase SPE separates analytes based on polar interaction with sorbents in diverse sample matrices.
관련 콘텐츠
QuEChERS는 ‘Quick, Easy, Cheap, Effective, Rugged, Safe’ 시료 정화 방법으로 살충제 분석을 위해 식품과 농산물 시료 전처리에 사용합니다. QuEChERS는 시료 전처리에서 고체상 추출법(SPE) 기술에 기반합니다.
QuEChERS method simplifies sample cleanup for pesticides analysis in food and agricultural samples.
자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..
고객지원팀으로 연락바랍니다.