Abstract：
:A novel dendritic silicon dioxide nanocomposite coated with a highly dispersed graphene-like boron nitride nanosheet (g-BN(x)@SiO2) was in-situ synthesized and employed as a solid-phase extraction material for the Rhodamine B (RhB) and Rhodamine 6G (R6G) enrichment in food samples prior to their quantitation by HPLC. The structures and morphologies of g-BN(x)@SiO2 were characterized by XRD, FTIR, BET and TEM. The adsorption performance and mechanism were investigated and showed an enhanced maximum adsorption capacity of 625 mg/g for RhB on the nanocomposite loaded with 1% of g-BN via a fast, spontaneous process. Under optimal extraction conditions, this method showed low detection and quantification limits (2.8 μg/L for RhB, 2.1 μg/L for R6G and 9.2 μg/L for RhB, 6.9 μg/L for R6G, respectively), good repeatability (RSD% <3.7%), and satisfactory spiked recoveries of 94.8%-103.1% for RhB and R6G in real chili powder and beverage. Therefore, the g-BN(1%)@SiO2-based materials possess significant potential.
journal_name
Food Chemjournal_title
Food chemistryauthors
Chao Y,Pang J,Bai Y,Wu P,Luo J,He J,Jin Y,Li X,Xiong J,Li H,Zhu Wdoi
10.1016/j.foodchem.2020.126666subject
Has Abstractpub_date
2020-08-01 00:00:00pages
126666eissn
0308-8146issn
1873-7072pii
S0308-8146(20)30528-8journal_volume
320pub_type
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