|
|||||
|
|
Benzimidazole carbamate residues in milk: Detection by Surface Plasmon Resonance-biosensor, using a modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) method for extraction |
|
| Authors: | Jemma Keegan Michelle Whelan Martin Danaher Steven Crooks Aniello Anastasio David Brandon Richard O’Kennedy |
| Institution: | a Teagasc, Ashtown Food Research Centre, Ashtown, Dublin 15, Ireland b School of Biotechnology and National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland c Team Elucidate, Department of Chemistry, Cork Institute of Technology, Bishopstown, Cork, Ireland d Veterinary Sciences Division, Agri-Food & Biosciences Institute, Belfast, Northern Ireland e Teagasc Dairy Production Research Centre, Moorepark, Fermoy, Co. Cork, Ireland f Department of Scienze Zootecniche e Ispezione Alimenti, Federico II University, Naples, Italy g Institute of Agri-Food and Land, School of Biological Sciences, Queen's University Belfast, Belfast, Northern Ireland h Western Regional Research Center, US Department of Agriculture, Agricultural Research Service, Albany, CA, USA |
| Abstract: | A surface plasmon resonance (SPR) biosensor screening assay was developed and validated to detect 11 benzimidazole carbamate (BZT) veterinary drug residues in milk. The polyclonal antibody used was raised in sheep against a methyl 5(6)-(carboxypentyl)-thio]-2-benzimidazole carbamate protein conjugate. A sample preparation procedure was developed using a modified QuEChERS method. BZT residues were extracted from milk using liquid extraction/partition with a dispersive solid phase extraction clean-up step. The assay was validated in accordance with the performance criteria described in 2002/657/EC. The limit of detection of the assay was calculated from the analysis of 20 known negative milk samples to be 2.7 μg kg−1. The detection capability (CCβ) of the assay was determined to be 5 μg kg−1 for 11 benzimidazole residues and the mean recovery of analytes was in the range 81-116%. A comparison was made between the SPR-biosensor and UPLC-MS/MS analyses of milk samples (n = 26) taken from cows treated different benzimidazole products, demonstrating the SPR-biosensor assay to be fit for purpose. |
| Keywords: | SPR-biosensors Benzimidazole carbamates Bovine milk QuEChERS |
| 本文献已被 ScienceDirect 等数据库收录！ | |