产品名称
Supel™ QuE, Non-Buffered Tube 1, pk of 50
material
polypropylene tube
product line
Supel™
composition
magnesium sulfate, 4 g
sodium chloride, 1 g
packaging
pk of 50
technique(s)
QuEChERS: suitable
centrifuge tube volume
15 mL
Quality Level
application(s)
food and beverages
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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
存储类别
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
商品
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实验方案
A short abstract on a method using QuEChERS and GC/MS/MS for determination of fipronil & fipronil sulfone.
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 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.
Quechers SPE
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