干旱区生态环境知识资源中心(Arid): Determination of booster biocides in sediments by focused ultrasound-assisted extraction and stir bar sorptive extraction-thermal desorption-gas chromatography-mass spectrometry

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DOI	10.1016/j.microc.2019.104445
	Determination of booster biocides in sediments by focused ultrasound-assisted extraction and stir bar sorptive extraction-thermal desorption-gas chromatography-mass spectrometry
	Garcia, E.1; Giraldez, I.1; Ruiz Montoya, M.2; Morales, E.1
通讯作者	Giraldez, I.
来源期刊	MICROCHEMICAL JOURNAL
ISSN	0026-265X
EISSN	1095-9149
出版年	2020
卷号	152
英文摘要	Booster biocides present in natural waters may be captured by the sediments. Highly sensitive, robust, selective and reliable analytical methods are required to evaluate their presence in the sediments. A focused ultrasound assisted extraction method for the simultaneous determination of five organic booster biocides (Chlorothalonil, Dichlofluanid, Sea-Nine 211, Irgarol 1051 and TCMTB) in marine sediments is proposed. The isolation of the target compounds from 0.5 g of sediment was efficient using 2.5 mL of methanol as solvent, an output amplitude of 50 W, 100% duty cycle and an extraction time of 300 s. The extraction procedure was followed by solid-phase clean-up on non-polar sorbents (Oasis HLB). The compounds were sampled using stir bars (20 mm length, 0.5 mm film thickness) coated with polydimethylsiloxane (PDMS). The stir bars were stirred at 900 rpm for 3 h at room temperature. Desorption was carried out by thermal desorption (TD), and the analytes were separated in the gas chromatography (GC). They were detected by triple quadrupole mass spectrometry (MS/MS) using the multiple reaction monitor (MRM) mode. The detection limits (DIA) of booster biocides were in the range of 0.02 to 2.2 ng g(-1) dry weight. The regression coefficients were higher than 0.999. The average recovery was higher than 86% (R.S.D.: 7-11%). The analytical procedure was applied to determination of the booster biocides in port sediment samples from the southwestern Spain. Sea-Nine 211 was found in one sediment at a level of 2.1 ng g(-1). Irgarol was present in all the sediments at concentrations between 2 and 9 ng g(-1).
英文关键词	Booster biocides Sonication Stir bar sorptive extraction GC-MS/MS Sediment analysis
类型	Article
语种	英语
国家	Spain
收录类别	SCI-E
WOS记录号	WOS:000503315300103
WOS关键词	MARINE-SEDIMENTS ; DEGRADATION-PRODUCTS ; ANTIFOULING BIOCIDES ; COASTAL WATERS ; IRGAROL 1051 ; CONTAMINATION ; SEA ; ORGANOTINS ; PAINTS ; AREAS
WOS类目	Chemistry, Analytical
WOS研究方向	Chemistry
EI主题词	2020-01-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312207
作者单位	1.Univ Huelva, Dept Quim Prof JC Vilchez Martin, Campus El Carmen,Avda Fuerzas Armadas S-N, Huelva 21071, Spain; 2.Univ Huelva, Res Ctr Technol Prod & Chem Proc, Dept Ingn Quim Quim Fis & Ciencias Mat, PRO2TECS, Campus El Carmen,Avda Fuerzas Armadas S-N, Huelva 21071, Spain
推荐引用方式 GB/T 7714	Garcia, E.,Giraldez, I.,Ruiz Montoya, M.,et al. Determination of booster biocides in sediments by focused ultrasound-assisted extraction and stir bar sorptive extraction-thermal desorption-gas chromatography-mass spectrometry[J],2020,152.
APA	Garcia, E.,Giraldez, I.,Ruiz Montoya, M.,&Morales, E..(2020).Determination of booster biocides in sediments by focused ultrasound-assisted extraction and stir bar sorptive extraction-thermal desorption-gas chromatography-mass spectrometry.MICROCHEMICAL JOURNAL,152.
MLA	Garcia, E.,et al."Determination of booster biocides in sediments by focused ultrasound-assisted extraction and stir bar sorptive extraction-thermal desorption-gas chromatography-mass spectrometry".MICROCHEMICAL JOURNAL 152(2020).