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- W2385289325 abstract "A novel direct sampling method to determine cadmium in beverages by solid sampling electrothermal vaporization atomic fluorescence spectrometry(SS-ETV-AFS) was established, where a tungsten coil as a Cd trap was used to remove matrix interferences and foam graphite as an electrothermal vaporizer and a sample boat. In the present study, 10 μL sample was loaded onto a sample boat, and then vaporized with 70 W for 30 s after being ashed with 100 W for 30 s(natural spring water) or 50 s(beverages), using Ar/H2(9:1) as the carrier gas with a flow rate of 600 mL/min. Results showed that the calibration curve for Cd ha d good linearity(from 0 to 5 ng), and a correlation coefficient(r) was more than 0.998; the recovery rates for Cd in 10 kinds of beverages were 92.2%-111.8%. The detection limit was 0.04 μg/L, and the relative standard deviations(RSD) were less than 10%. This method is simple, sensitive, fast(the whole analytical process including sample pre treatment can be completed within 3 min) and suitable for in-field determination of ultra-trace amounts of Cd in beverages." @default.
- W2385289325 created "2016-06-24" @default.
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- W2385289325 date "2013-01-01" @default.
- W2385289325 modified "2023-09-24" @default.
- W2385289325 title "Direct Determination of Ultra-Trace Amounts of Cadmium in Beverages by Tungsten Coil Trapping Electrothermal Vaporization Atomic Fluorescence Spectrometry" @default.
- W2385289325 hasPublicationYear "2013" @default.
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