A method for the analysis of methylmercury and total Hg in fungal matrices - Publication - MOST Wiedzy

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A method for the analysis of methylmercury and total Hg in fungal matrices

Abstract

The aim of the study was to develop an efficient method for the determination of monomethyl-mercury (MeHg) and total mercury (THg) content in materials such as fungal sporocarps and sclerotia. Certified Reference Materials (CRMs) with the assigned values of MeHg and THg as well as the control materials (dried mushrooms) with known content of THg were evaluated for method validation. Recovery of MeHg from reference materials was at the following levels: from tuna fish at 87.0 ± 2.3% (THg at 101.9 ± 1.2%), from fish protein at 99.4 ± 1.3% (THg at 92.70 ± 0.41%), and from dogfish liver at 96.45 ± 0.73%. Recovery of THg from the fungal control material CS-M-5 was at 104.01 ± 0.60% (contribution of MeHg in THg content was at 6.2%), from CS-M-4 at 101.1 ± 2.0% (contribution at 3.2%), from CS-M-3 at 100.55 ± 0.67% (contribution at 0.6%), and from CS-M-2 at 101.5 ± 2.7% (contribution at 3.7%). The content of MeHg in randomly selected wild fungi and their morphological parts was in the range from 0.006 to 0.173 mg kg−1 dry weight (dw). In the case of THg, the concentration values were in the range from 0.0108 to 10.27 mg kg−1 dw. The MeHg content in the control materials with the assigned THg values was determined. Since the control materials play an important role in all elements of the quality assurance system of measurement results, they can be used to analyse MeHg as the first control material for fungi.

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Category:
Articles
Type:
artykuły w czasopismach
Published in:
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY no. 106, pages 5261 - 5272,
ISSN: 0175-7598
Language:
English
Publication year:
2022
Bibliographic description:
Rutkowska M., Falandysz J., Saba M., Szefer P., Misztal-Szkudlińska M., Konieczka P.: A method for the analysis of methylmercury and total Hg in fungal matrices// APPLIED MICROBIOLOGY AND BIOTECHNOLOGY -,iss. 106 (2022), s.5261-5272
DOI:
Digital Object Identifier (open in new tab) 10.1007/s00253-022-12043-5
Verified by:
Gdańsk University of Technology

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