title: Determination of triazine herbicides in milk by cloud point extraction and high-performance liquid chromatography.
abstract: High-performance liquid chromatography with UV detection was used to detect four triazines in milk. An efficient pretreatment method known as cloud point extraction (CPE) was proposed for extracting and preconcentrating analytes. The parameters of CPE including surfactant type and concentration, electrolyte, sample pH, incubation temperature and duration were investigated. Under optimal conditions, satisfying recoveries in the range of 70.5-96.9% were achieved for four triazines. The limits of detection ranged from 6.79 to 11.19μg L(-1). The linear range of quantitation for the four triazines was 50-2000μg L(-1), and the correlation coefficients of the calibration curves were all 0.9999. The results demonstrated that the proposed method was efficient and reliable for the determination of triazine herbicides in milk samples.
authors.affiliation: College of Food Science and Engineering, Shandong Agricultural University, No. 61 Daizong Road, Tai'an, Shandong Province 271018, China.
authors.forename: Tiantian
authors.initials: T
authors.lastname: Liu
authors.forename: Peng
authors.initials: P
authors.lastname: Cao
authors.forename: Jinpei
authors.initials: J
authors.lastname: Geng
authors.forename: Jinqiang
authors.initials: J
authors.lastname: Li
authors.forename: Mingzhen
authors.initials: M
authors.lastname: Wang
authors.forename: Minglin
authors.initials: M
authors.lastname: Wang
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Li
authors.forename: Dalu
authors.initials: D
authors.lastname: Yin
mesh_terms: D000818:Animals; D002417:Cattle; D005591:Chemical Fractionation / Q000379:methods*; D002851:Chromatography, High Pressure Liquid; D005506:Food Contamination / Q000032:analysis; D006540:Herbicides / Q000032:analysis* / Q000302:isolation & purification*; D008892:Milk / Q000737:chemistry*; D014227:Triazines / Q000032:analysis* / Q000302:isolation & purification*
chemical_list: D006540:Herbicides; D014227:Triazines
keywords: Cloud point extraction; HPLC-UV; Milk; Triazines