title: Determination of hexabromocyclododecane diastereoisomers in Sargassum fusiforme and comparison of the extraction efficiency of ultrasonication, microwave-assisted extraction, Soxhlet extraction and pressurised liquid extraction.
abstract: The concentrations of hexabromocyclododecanes (HBCD) in Sargassum fusiforme, the common Chinese edible seaweed, were investigated by LC-MS/MS. For the recovery of HBCD, the efficiency levels of ultrasonic-assisted extraction, microwave-assisted extraction, Soxhlet extraction and pressurised liquid extraction were compared under different conditions. Pressurised liquid extraction and ultrasonic-assisted extraction resulted in complete extraction of HBCD (92.7-102.5% recovery). Microwave-assisted extraction and Soxhlet extraction, on the other hand, offered relatively low extraction recoveries (82.1-90.6%). The instrumental LODs on columns in this study were 1.0, 0.3 and 0.7 ng/g for α-HBCD, β-HBCD and γ-HBCD, respectively. Because of its accuracy, this straightforward method is particularly suitable for routine HBCD analysis.
authors.affiliation: Wenzhou Entry-Exit Inspection and Quarantine Bureau of P.R.C, Wenzhou, PR China.
authors.forename: Chao
authors.initials: C
authors.lastname: Han
authors.forename: Xiaomei
authors.initials: X
authors.lastname: Chen
authors.forename: Wen
authors.initials: W
authors.lastname: Xie
authors.forename: Zhenou
authors.initials: Z
authors.lastname: Zhu
authors.forename: Cuiping
authors.initials: C
authors.lastname: Liu
authors.forename: Fan
authors.initials: F
authors.lastname: Chen
authors.forename: Yan
authors.initials: Y
authors.lastname: Shen
mesh_terms: D025924:Chromatography, Supercritical Fluid / Q000379:methods*; D006801:Humans; D006842:Hydrocarbons, Brominated / Q000032:analysis*; D008872:Microwaves; D015394:Molecular Structure; D015203:Reproducibility of Results; D044647:Sargassum / Q000737:chemistry*; D012680:Sensitivity and Specificity; D012997:Solvents / Q000737:chemistry; D013237:Stereoisomerism; D014465:Ultrasonics; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D006842:Hydrocarbons, Brominated; D012997:Solvents; D014874:Water Pollutants, Chemical; C089796:hexabromocyclododecane