Currently in study heavy metals (Pb, Cd, Cr) and metalloid (As) in freshwater sediment. just wonder if we can use dry ashing for the digestion instead of wet digestion, eg, using aqua regia
Yes, there is some references
Article Determination of Arsenic in Orange Juice by Dry Ashing Hydri...
thank you Dr, but how about in sediment. ?is it appropriate to use dry ashing
Since Arsenic compounds are volatiles at high temperatures, its determination can be performed by a non-destructive method, such as X-ray fluorescence analysis (XRF).
Revenko A.G. X-ray fluorescence analysis of rocks, soils and sediments // X-Ray Spectrometry. 2002. V. 31, No. 3. P. 264-273.
T.Yu. Cherkashina, S.I. Shtel'makh, G.V. Pashkova, 2017. Determination of trace elements in calcium rich carbonate rocks by Wavelength Dispersive X-ray Fluorescence Spectrometry for environmental and geological studies. Applied Radiation and Isotopes 130, 153–161. http://dx.doi.org/10.1016/j.apradiso.2017.09.038
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