Comparison and applicability of Agilent EMR-Lipid and Captiva EMR-Lipid Sorbents in QuEChERS method for food analysis

Quang Hoang Hanh Le¹, Nguyen Ngoc Chau Tran¹, Thi Cam Tuyen Nguyen¹, Huong Giang Nguyen², Kien Trieu Lac², Thi Anh Pham³ and Pham Ngoc Son Chu^3*

¹TSL Hi-Tech Training and Research Center
²Ho Chi Minh City Centre for the Quality Control of Food, Drug and Cosmetics
³Chemical Society of Ho Chi Minh City

Received 12 May 2020; accepted 11 August 2020

 

Abstract:
Agilent’s innovative EMR-Lipid and Captiva EMRLipid sorbents efficiently replace the traditional QuEChERS d-SPE clean-up products in selective lipid removal from fatty matrices, thus improving instrumental analytical reproducibility, reliability, and long-term use. These products have dual functionality; a hydrophobic interaction between the sorbent with long aliphatic lipid chains of the matrices, which allows for complete lipid retention, and a size exclusion property that does not retain analytes, thus this maximizes, in principle, analyte recovery in any sample. As most of the analytes under study were polar or not highly nonpolar and had a relatively large size, the examination of small-sized nonpolar or less polar compounds is necessary to check for partial retention by the sorbents and if any, further precautions should be taken when using these sorbents. These queries are answered in our present communication concerning the analytes Trifluralin (logP: 5.27), Fipronil (logP: 4.0), and Clenbuterol (logP: 2.63).

Keywords: Captiva EMR-Lipid, EMR-Lipid Sorbents, size exclusion and hydrophobic interaction with fatty materials, food analysis.

Classification number: 2.2