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- W2099850021 abstract "A method for direct atomization of slurry sample by electrothermal atomic absorption spectrometry (SS-ETAAS) has been developed for the determination of trace lead impurities in commercially available pure copper using laboratory-made molyb - denum tube atomizer. Suitable charring temperature was set and matrix element interference was checked. Lead standard solu- tion in the glycerol-water medium as calibration medium and ultrasonic agitation method of the suspension of the sample pow- der were used. Typical results of this direct slurry method and wet digestion were close and precision varies over the range R SD 3.9 to 9.0 %. The recovery of Pb added was 98-102 %. Accuracy for certified copper sample agreed within 3 % range. Limits of detection were 34 fg Pb (3S/N), and characteristic mass 170 fg Pb. The method offers rapid calibration, simplified and fast analysis of lead in pure copper at lower cost." @default.
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- W2099850021 date "2000-06-01" @default.
- W2099850021 modified "2023-10-16" @default.
- W2099850021 title "Determination of trace lead impurities in pure copper slurry samples by electrothermal atomic absorption spectrometry with molybdenum tube atomizer" @default.
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- W2099850021 doi "https://doi.org/10.1051/analusis:2000126" @default.
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