Indexed by:
Abstract:
The study aimed to extend the applications of surface-enhanced Raman scattering (SERS) - recently one of the most promising and widely employed technique in food safety and quality monitoring - towards determination of two analytes in a single step for the first time. Thus, an ultra-sensitive and selective SERS based detection platform for the simultaneous determination of pesticides namely acetamiprid (AC) and 2,4-dichlorophenoxyacetic acid (2,4-D) in matcha tea has been developed. Owing to the potential interference of different nutrients and pigments in complicated matrices, the matcha tea samples with and without spiking AC and 2,4-D, were percolated through a solid phase extraction cartridge. The eluate was introduced to the SERS Au@Ag nanostructure substrate for monitoring SERS signal with subsequent chemometrics modeling. Under the optimized experimental conditions, a linear calibration exhibited at GA-PLS model with RPD values of 6.53 and 6.23, and Rp values 0.9943 and 0.9923, respectively for AC and 2,4-D. The method was validated in both mixed and single spiking conditions successfully in terms of student's t- and F- test at 95% confidence with satisfactory recovery percentages. An RSD value < 4.85% indicates good reproducibility of the proposed method.
Keyword:
Reprint 's Address:
Email:
Version:
Source :
LWT-FOOD SCIENCE AND TECHNOLOGY
ISSN: 0023-6438
Year: 2019
Volume: 105
Page: 290-297
4 . 0 0 6
JCR@2019
6 . 0 0 0
JCR@2023
ESI Discipline: AGRICULTURAL SCIENCES;
ESI HC Threshold:133
CAS Journal Grade:2
Cited Count:
WoS CC Cited Count: 81
SCOPUS Cited Count: 86
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 0
Affiliated Colleges: