GL QuEChERS

GL QuEChERS

QuEChERS是一种样品前处理技术。QuEChERS是Quick,Easy,Cheap,Effective,Rugged和Safe的首字母缩写,诠释了它的用途。该试剂盒使食品样品中农残的检测过程更加轻松快捷。众所周知,农残会影响人们的健康。世界各地的法规对于检测食品中的农残要求也越来越严格。而原本的农残前处理方法费时费力,因此,QuEChERS于2003年被提出开发,目前除了食品行业之外,还应用于环境、司法、生物等领域。

GL Sciences公司的提供的QuEChERS产品适用于中国国家标准GB 23200.113、EN 15662方法(EU)和AOAC 2007.01方法(US)相关方法。

QuEChERS原理介绍

QuEChERS试剂盒的功能是从样品中除去干扰基质,分两步完成。一步通过使用MgSO4和缓冲盐将样品中农残从水中转移到添加的有机相(乙腈)中。第二步,根据基质的不同分别加入含MgSO4、PSA、C18和GCB的填料,其中的MgSO4用于去除多余水分,PSA可去除脂肪酸和糖类,GCB可去除色素和甾醇,C18确保农药不溶于含脂水果和蔬菜中产生的脂质层(样品>1%脂肪)。

一般上样步骤:

GL QuEChERS

GL QuEChERS

产品列表:

L-050020

Extraction Salts with 50mL Centrifuge Tube
6g MgSO4,1.5g NaOAc

50/p

GL-050021

Extraction Salts Packets only
6g MgSO4,1.5g NaOAc

50/p

GL-002031

50mg PSA,150mg MgSO4,2mL dSPE

100/p

GL-015031

400mg PSA,1200mg MgSO4,15mL dSPE

50/p

GL-002033

50mg PSA,50mg C18,150mg MgSO4,2mL dSPE

100/p

GL-015033

400mg PSA,400mg C18,1200mg MgSO4,15mL dSPE

50/p

GL-015040

50mg PSA,50mg C18,50mg GCB,150mg MgSO4,2mL dSPE

100/p

GL-015041

400mg PSA,400mg C18,400mg GCB,1200mg MgSO4,15mL dSPE

50/p

EN 15662方法

GL-050010

Extraction Salts with 50mL Centrifuge Tube
4g MgSO4,1g NaCl,0.5g DHS,1g TSCD

50/p

GL-050011

Extraction Salts Packets only
4g MgSO4,1g NaCl,0.5g DHS,1g TSCD

50/p

GL-002030

25mg PSA,150mg MgSO4,2ml dSPE

100/p

GL-015022

150mg PSA,900mg MgSO4,15mL dSPE

50/p

GL-002032

25mg PSA,25mg C18,150mg MgSO4,2mL dSPE

100/p

GL-015032

150mg PSA,150mg C18,900mg MgSO4,15mL dSPE

50/p

GL-015020

150mg PSA,15mg GCB,900mg MgSO4,15mL dSPE

50/p

GL-015024

150mg PSA,45mg GCB,900mg MgSO4,15mL dSPE

50/p

陶瓷均质子

GL-9903B

陶瓷均质子,用于50mL提取管

100/p

GL-9902B

陶瓷均质子,用于15mL净化管

100/p

GL-9901B

陶瓷均质子,用于2mL净化管

200/p

GB 23200.113-2018 植物性源食品中208种农药及其代谢物残留测定方法

不含离心管架

GL-050010

Extraction Salts with 50mL Centrifuge Tube
4g MgSO4,1g NaCl,0.5g DHS,1g TSCD

50/p

GL-050020

Extraction Salts with 50mL Centrifuge Tube
6g MgSO4,1.5g NaOAc

50/p

GL-015022

150mg PSA,900mg MgSO4,15mL dSPE

50/p

GL-015020

150mg PSA,15mg GCB,900mg MgSO4,15mL dSPE

50/p

GL-015033

400mg PSA,400mg C18,1200mg MgSO4,15mL dSPE

50/p

GL-015047

400mg PSA,400mg C18,200mg GCB,1200mg MgSO4 15mL dSPE

50/p

GL-9903B

陶瓷均质子,用于50mL提取管

100/p

GL-9902B

陶瓷均质子,用于15mL净化管

100/p

GL-9901B

陶瓷均质子,用于2mL净化管

200/p

含离心管架

GL-050010-G

Extraction Salts with 50mL Centrifuge Tube with Tube Holder
4g MgSO4,1g NaCl,0.5g DHS,1g TSCD

50/p

GL-050020-G

Extraction Salts with 50mL Centrifuge Tube with Tube Holder
6g MgSO4,1.5g NaOAc

50/p

GL-015022-G

150mg PSA,900mg MgSO4 with Tube Holder,15mL dSPE

50/p

GL-015020-G

150mg PSA,15mg GCB,900mg MgSO4
with Tube Holder, 15mL dSPE

50/p

GL-015033-G

400mg PSA,400mg C18,1200mg MgSO4
with Tube Holder, 15mL dSPE

50/p

GL-015047-G

400mg PSA,400mg C18,200mg GCB,1200mg MgSO4
with Tube Holder 15mL dSPE

50/p

GL-9903B

陶瓷均质子,用于50mL提取管

100/p

GL-9902B

陶瓷均质子,用于15mL净化管

100/p

GL-9901B

陶瓷均质子,用于2mL净化管

200/p

中国药典(四部通则2341)中药多农残的测定

GL-050020

Extraction Salts with 50mL Centrifuge Tube
6g MgSO4,1.5g NaOAc

50/p

GL-015050

300mg C18,300mg PSA,90mg GCB,300mg Silica,900mg MgSO4,15mL dSPE

50/p