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Merck

55237-U

Supelco

Supel QuE QuEChERS tube

Citrate/Sodium Bicarbonate Tube, pk of 50

别名:

QuEChERS

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About This Item

UNSPSC代码:
41115712
NACRES:
NB.21

产品名称

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

组成

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)

包装

pk of 50

技术

QuEChERS: suitable

离心管体积

15 mL

应用

food and beverages

分离技术

ion exchange

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相关类别

一般描述

分散SPE法,通常也是指"QuEChERS” 方法(快速,简便,便宜,有效,耐用和安全),是一种现代样本准备技术,正在越来越多地被用在食品和农业产品多残基杀虫剂分析领域。

使用QuEChERS方法,食品/农产品样本首先在水溶性溶剂(比如乙腈),在高盐(比如氯化钠和硫酸镁)和或者缓冲试剂(比如柠檬酸盐)存在下,进行提取。高盐能够引起液相分离,而缓冲试剂能够稳定酸碱不稳定杀虫剂。 在摇晃和离心之后,有机相部分就进一步用SPE清洁。 和传统的SPE管方法不同,在分散SPE中,清洁需要混合大量的SPE(比如Supelclean PSA, ENVI-Carb, 和或者Discovery DSC-18)和提取物。 在样本清洁后,混合物经过离心,得到的上清可以直接分析,或者在分析前需要很少的处理。

Supelco有一系列的管和离心管,含有预置量的盐和SPE吸附剂,能够支持现今最常用的方法。
适用于提取约10 g食品/农业样品。 枸橼酸盐用于缓冲萃取至pH 5.0-5.5。 在该pH下,大多数酸碱不稳定的农药。碳酸氢钠用于进一步稳定不耐酸农药。

法律信息

Supel is a trademark of Sigma-Aldrich Co. LLC

储存分类代码

13 - Non Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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其他客户在看

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
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
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

商品

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.

实验方案

Normal-phase SPE separates analytes based on polar interaction with sorbents in diverse sample matrices.

Normal-phase SPE separates analytes based on polar interaction with sorbents in diverse sample matrices.

Normal-phase SPE separates analytes based on polar interaction with sorbents in diverse sample matrices.

Normal-phase SPE separates analytes based on polar interaction with sorbents in diverse sample matrices.

相关内容

QuEChERS方法简化了食品和农业样品农残分析的样品纯化步骤。

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

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

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

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