Przejdź do zawartości
Merck
Wszystkie zdjęcia(1)

Key Documents

View All Documentation

55237-U

Supelco

Supel™ QuE QuEChERS tube

Citrate/Sodium Bicarbonate Tube, pk of 50

Synonim(y):

QuEChERS

Zaloguj sięWyświetlanie cen organizacyjnych i kontraktowych
Wszystkie zdjęcia(1)

About This Item

Kod UNSPSC:
41115712
NACRES:
NB.21

product name

Supel™ QuE, Citrate/Sodium Bicarbonate Tube, pk of 50

skład

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)

opakowanie

pk of 50

metody

QuEChERS: suitable

pojemność probówki reakcyjnej (do wirowania)

15 mL

Zastosowanie

food and beverages

metoda separacji

ion exchange

Szukasz podobnych produktów? Odwiedź Przewodnik dotyczący porównywania produktów

Opis ogólny

Suitable for extracting ~10 g food/agricultural sample. The citrate is used to buffer the extraction to pH 5.0 - 5.5. At this pH, most acid and base labile pesticides are. The sodium bicarbonate is used to further stablize acid labile pesticides.
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.

Informacje prawne

Supel is a trademark of Sigma-Aldrich Co. LLC
This page may contain text that has been machine translated.

wymagane, ale niedostarczone

Numer produktu
Opis
Cennik

Kod klasy składowania

13 - Non Combustible Solids

Klasa zagrożenia wodnego (WGK)

WGK 1

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable

Wybierz jedną z najnowszych wersji:

Certyfikaty analizy (CoA)

Lot/Batch Number
16868801
13899202
13899201
11117903
11117902

Nie widzisz odpowiedniej wersji?

Jeśli potrzebujesz konkretnej wersji, możesz wyszukać konkretny certyfikat według numeru partii lub serii.

Wyszukaj dokument COA

Masz już ten produkt?

Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

Klienci oglądali również te produkty

Slide 1 of 3

1 of 3

Supel™ QuE PSA/ENVI-Carb™ (EN) Cleanup Tube 2, pack of 100, suitable for EN 15662:2008 per BS

Supelco

55176-U

Supel™ QuE

Supel™ QuE Z-Sep+ Tube, pk of 50, centrifuge tube volume 15 mL , Shaker Compatible

Supelco

55486-U

Supel™ QuE

QuEChERS Shaker and Rack Starter Kit AC/DC input 230 V AC, Schuko plug

Supelco

55438-U

QuEChERS Shaker and Rack Starter Kit

Mohammad Faraji et al.
Food chemistry, 240, 634-641 (2017-09-28)
A QuEChERS based methodology was developed for the simultaneous identification and quantification of acetamiprid, imidacloprid, and spirotetramat and their relevant metabolites in pistachio by liquid chromatography-tandem mass spectrometry for the first time. First, sample extraction was done with MeCN:citrate buffer:NaHCO
Maria Teresa Salles Trevisan et al.
Journal of chromatography. A, 1512, 98-106 (2017-07-20)
An analytical method using a quick, easy, cheap, effective, rugged and safe (QuEChERS) procedure for multi-residue determination of 52 pesticides in coffee leaf extractshas been developed and validated according to SANTE/11945/2015 guidelines. Different sorbent combinations for dispersive solid phase extraction
David Moreno-González et al.
Talanta, 128, 299-304 (2014-07-26)
In this study a fast, selective and sensitive multiresidue method based on QuEChERS methodology has been evaluated and validated for the determination of carbamate pesticides, in edible vegetable oils by UHPLC-MS/MS. A new clean-up sorbent, Supel(TM) QuE Z-Sep(+), has been
Lijun Han et al.
Journal of separation science, 39(23), 4592-4602 (2016-11-03)
A novel carbon/zirconia-based material, Supel

Produkty

Solid Phase Extraction: Ion Exchange Methodology

SPE retention mechanism in this case is based on the electrostatic attraction of charged functional groups of the analyte(s) to oppositely charged functional groups on the sorbent.

Protokoły

Solid Phase Extraction: Normal Phase Methodology

Retention occurs through polar interaction between the sorbent and analytes. Typical sample matrices that can be employed in normal-phase SPE include hydrocarbon or fatty oils diluted in a solvent like hexane, isooctane, chlorinated solvent, THF, diethyl ether, or ethyl acetate.

Powiązane treści

QuEChERS Sample Preparation Method

QuEChERS is a ‘Quick, Easy, Cheap, Effective, Rugged and Safe’ sample cleanup method used to prepare food and agricultural samples for pesticides analysis. QuEChERS is based on the Solid Phase Extraction (SPE) technique of sample preparation.

Metoda przygotowania próbki QuEChERS

Metoda QuEChERS upraszcza oczyszczanie próbek do analizy pestycydów w próbkach żywności i rolniczych.

Metoda przygotowania próbki QuEChERS

Metoda QuEChERS upraszcza oczyszczanie próbek do analizy pestycydów w próbkach żywności i rolniczych.

QuEChERS Sample Prep Method

QuEChERS method simplifies sample cleanup for pesticides analysis in food and agricultural samples.

Nasz zespół naukowców ma doświadczenie we wszystkich obszarach badań, w tym w naukach przyrodniczych, materiałoznawstwie, syntezie chemicznej, chromatografii, analityce i wielu innych dziedzinach.

Skontaktuj się z zespołem ds. pomocy technicznej