推荐产品
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
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。
法律信息
储存分类代码
13 - Non Combustible Solids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
其他客户在看
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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