State of the art report of selenium speciation in biological samples

Autor: Aleksandra Polatajko, Norbert Jakubowski, Joanna Szpunar

Publikováno v: J. Anal. At. Spectrom.. 21:639-654

Selenium is an essential trace element for humans and animals. It plays a putative role in the prevention of cancer and other illnesses. The increasing use of selenium in food and fodder supplementation has resulted in a need for high-performance ana

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a167323f9306c7916a728f08376ec147
https://doi.org/10.1039/b605654g

A systematic approach to selenium speciation in selenized yeast

Autor: Magdalena Śliwka-Kaszyńska, Rafal Ruzik, Joanna Szpunar, Aleksandra Polatajko, Mihály Dernovics, Jorge Ruiz Encinar

Publikováno v: J. Anal. At. Spectrom.. 19:114-120

A systematic approach to the characterization of selenized yeast supplements in terms of the speciation of selenium was developed. The optimized fractionation procedures included the sequential leaching of water soluble, cell-wall bound, and membrane

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::359786575d1be38c5dd5c95e7a5bcaf8
https://doi.org/10.1039/b308756p

An integrated functional approach to dissect systemic responses in maize to arbuscular mycorrhizal symbiosis

Autor: Nina, Gerlach, Jessica, Schmitz, Aleksandra, Polatajko, Urte, Schlüter, Holger, Fahnenstich, Sandra, Witt, Alisdair R, Fernie, Kalle, Uroic, Uwe, Scholz, Uwe, Sonnewald, Marcel, Bucher

Publikováno v: Plant, cellenvironment. 38(8)

Most terrestrial plants benefit from the symbiosis with arbuscular mycorrhizal fungi (AMF) mainly under nutrient-limited conditions. Here the crop plant Zea mays was grown with and without AMF in a bi-compartmented system separating plant and phospha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::4c0771ba3c85763789e130c38f33b453
https://pubmed.ncbi.nlm.nih.gov/25630535

Certification of a new selenized yeast reference material (SELM-1) for methionine, selenomethinone and total selenium content and its use in an intercomparison exercise for quantifying these analytes

Autor: Lu Yang, Alfredo Sanz-Medel, Aleksandra Polatajko, Shona McSheehy, Zoltán Mester, Joseph A. Caruso, Maria Luisa Fernández, Heidi Goenaga-Infante, Ralph E. Sturgeon, Christine Scriver, Joanna Szpunar, Raimund Wahlen, Robert J. Goldschmidt, Péter Fodor, Paulette Maxwell, Scott Willie, Wayne R. Wolf, Baki B. M. Sadi, Ryszard Lobinski

Publikováno v: Analytical and Bioanalytical Chemistry
Analytical and Bioanalytical Chemistry, Springer Verlag, 2006, 385 (1), pp.168--180. ⟨10.1007/s00216-006-0338-0⟩

International audience; A new selenized yeast reference material (SELM-1) produced by the Institute for National Measurement Standards, National Research Council of Canada (INMS, NRC) certified for total selenium (2,059±64 mg kg-1), methionine (Met,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a36de01dfc5e3e65a3cd62fb9942298
https://doi.org/10.1007/s00216-006-0338-0

Identification of non-peptide species in selenized yeast by MALDI mass spectrometry using post-source decay and orthogonal Q-TOF detection

Autor: Ryszard Łobiński, Joanna Szpunar, Jorge Ruiz Encinar, Aleksandra Polatajko

Publikováno v: Analyst
Analyst, Royal Society of Chemistry, 2004, 129 (9), pp.846--849. ⟨10.1039/b406650b⟩

International audience; The potential of tandem mass spectrometry following matrix-assisted laser desorption ionization (MALDI) was studied for speciation of selenium. Non-peptide selenium-containing compounds were isolated from a selenized yeast aqu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f81d68a6f92ea653e94ff94d20371b11
https://hal.archives-ouvertes.fr/hal-01560733