A direct and in situ digestion technique is reported for electrothermal atomic absorption spectrometric analysis of Cd in dairy products. In situ digestion methods offered high sensitivity due to the absence of sample dilution andminimum risk of contamination or analyte loss. Under optimized conditions, the calibration graph was linear in the range of 0–5 ng/mL, with a limit of detection of 0.012 ng/mL. The method was successfully applied in dairy product samples including milks, yogurt, and milk beverages, with spiked recoveries of 91 to 111%. The accuracy of the proposed method was also validated by wet digestion-based method.
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Abstract of article is published in Zhurnal Prikladnoi Spektroskopii, Vol. 87, No. 1,p. 172, January–February, 2020.
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Hu, Y., Xu, M., Zhao, X. et al. Using Chemical Modifiers and Increasing the Pyrolysis Temperature for High-Sensitivity Spectrometric Determination of Cadmium in Dairy Products. J Appl Spectrosc 87, 169–173 (2020). https://doi.org/10.1007/s10812-020-00978-4
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DOI: https://doi.org/10.1007/s10812-020-00978-4