产品名称
Supel™ QuE, Acetate Tube, pk of 50, AOAC® 2007.01
material
polypropylene tube
Quality Level
agency
AOAC® 2007.01
product line
Supel™
composition
magnesium sulfate, 6 g , sodium acetate, 1.5 g (Cat. No. 58750)
packaging
pk of 50
technique(s)
QuEChERS: suitable
centrifuge tube volume
15 mL
application(s)
food and beverages
separation technique
ion exchange
General description
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。
Application
Legal Information
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存储类别
12 - Non Combustible Liquids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
实验方案
Analysis of banned neonicotinoid insecticides from dandelion blossoms using QuEChERS and LC-MS.
Normal-phase SPE separates analytes based on polar interaction with sorbents in diverse sample matrices.
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.
相关内容
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.
气相色谱分析(GC)是分离和分析混合物中挥发性和半挥发性化合物的常用分析技术。这一技术凭借出色的分辨能力及速率和灵敏度，成为常用的分析技术。GC在环境、石油、化工、食品和饮料以及制药等众多行业中广泛使用。
Gas chromatography separates volatile compounds in the gas phase, applied in various industries for quality control.
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 55234-U | 04061835552436 |