NDLI: Magnetic matrix solid phase dispersion assisted dispersive liquid liquid microextraction of ultra trace polychlorinated biphenyls in water prior to GC-ECD determination

Content Provider	Springer Nature Link
Author	Diao, Chunpeng Li, Cong Yang, Xiao Sun, Ailing Liu, Renmin
Copyright Year	2016
Abstract	Magnetic matrix solid phase dispersion (MMSPD) assisted dispersive liquid liquid microextraction (DLLME) was applied to extract ultra traces of polychlorinated biphenyls (PCBs) from water samples prior to gas chromatography with electron capture detection. PCBs in water were adsorbed by micro particles of magnetic bamboo charcoal and then transferred into the elution solvent. PCBs in the elution solvent of the MMSPD were further concentrated into trace volume extraction solvent of the DLLME procedure. Under optimized conditions, good linearity in the range of 0.2–100 ng L−1 was obtained with regression coefficients (r) higher than 0.9987. Based on a signal-noise ratio of 3, the limits of detection (LODs) range from 0.05–0.1 ng L−1. These LODs are much lower than those of MMSPD or DLLME alone. Relative standard deviations are between 4.9–8.2 %. The method was successfully applied to the determination of PCBs in lake and river water. Relative recoveries were 85.5–117.4 % for the spiked environmental water samples. Graphical Abstract Polychlorinated biphenyls (PCBs) were adsorbed by micro particles of magnetic bamboo charcoal (MBC) and then eluted. PCBs were further concentrated into a trace volume of the extraction solvent used in dispersive liquid liquid microextraction.
Starting Page	1261
Ending Page	1268
Page Count	8
File Format	PDF
ISSN	00263672
Journal	Microchimica Acta
Volume Number	183
Issue Number	3
e-ISSN	14365073
Language	English
Publisher	Springer Vienna
Publisher Date	2016-01-27
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Magnetic solid phase extraction Bamboo charcoal PCBs Water sample GC-ECD Nanochemistry Nanotechnology Characterization and Evaluation of Materials Analytical Chemistry Microengineering
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry

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