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- W2277966056 abstract "This paper presents a sample preparation method for the determination of MeHg and ethylmercury (EtHg) in water samples by adsorbent preconcentration and capillary gas chromatography/atomic fluorescence detection (GC/AFS). MeHg and EtHg were preconcentrated from water on to a screening column packed with sulfhydryl cotton fiber (SCF) adsorbent. The MeHg and EtHg were elated by a mixture of acidic potassium bromide and copper sulfate solution, and then extracted using dichloromethane. Breakthrough volume of the SCF column used was tested using high organic matter-containing water from the Florida Everglades and seawater from Florida Bay. Good recoveries were achieved for both MeHg (85%) and EtHg (70%), and no breakthrough was found up to 2 L of sample. The detection limit was 0.01 ng/L in a 2 L water sample for both MeHg and EtHg." @default.
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- W2277966056 date "1996-10-01" @default.
- W2277966056 modified "2023-09-27" @default.
- W2277966056 title "A comprehensive study of methyl and ethylmercury determination in natural water by adsorbent preconcentration an GC/AFS analysis" @default.
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