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:
产品列表:
L-050020 |
Extraction Salts with 50mL Centrifuge Tube |
50/p |
GL-050021 |
Extraction Salts Packets only |
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 |
50/p |
GL-050011 |
Extraction Salts Packets only |
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 |
50/p |
GL-050020 |
Extraction Salts with 50mL Centrifuge Tube |
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 |
50/p |
GL-050020-G |
Extraction Salts with 50mL Centrifuge Tube with Tube Holder |
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 |
50/p |
GL-015033-G |
400mg PSA,400mg C18,1200mg MgSO4 |
50/p |
GL-015047-G |
400mg PSA,400mg C18,200mg GCB,1200mg MgSO4 |
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 |
50/p |
GL-015050 |
300mg C18,300mg PSA,90mg GCB,300mg Silica,900mg MgSO4,15mL dSPE |
50/p |