Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Katarzyna Chajewska"'
Autor:
Dorota Kwiatkowska, Krzysztof Grucza, Katarzyna Chajewska, Patryk Konarski, Katarzyna Wojtkowiak, Aleksandra Drapała, Mariola Wicka
Publikováno v:
Drug Testing and Analysis.
Ecdysterone (Crustecdysone; Beta-Ecdysone; 20-hydroxyecdysone) is a naturally occurring steroid hormone belonging to the ecdysteroid class. The presented study investigated the possible concentration range of ecdysterone in urine after consumption of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::024d3e989e91be8e6e48d80c23dc71f3
https://doi.org/10.1002/dta.3420
https://doi.org/10.1002/dta.3420
Autor:
Monika Kita, Sylwia Lewandowska-Pachecka, Marzena Wójtowicz, Katarzyna Chajewska, Ewa Turek-Lepa, Dorota Kwiatkowska, Andrzej Pokrywka, Anna Jarek
Publikováno v:
Drug Testing and Analysis. 6:1191-1196
Stimulants, together with anabolic androgenic steroids, are regarded as one of the most popular doping substances in sport. Owing to a great variety of these substances and new designer drugs being introduced to the market, each year the World Anti-D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1615dc7e2c9dc727234760695be5ec8d
https://doi.org/10.1002/dta.1755
https://doi.org/10.1002/dta.1755
Autor:
Katarzyna Chajewska, Anna Jarek, Dorota Kwiatkowska, Marzena Wójtowicz, Ewa Turek-Lepa, Andrzej Pokrywka, Rymantas Kazlauskas, Catrin Goebel
Publikováno v:
Drug Testing and Analysis. 7:331-335
Reports of new designer agents banned in sport being detected in supplements widely available for athletes are constantly emerging. The task of anti-doping laboratories is to control athletes for the presence of substances listed by the World Anti-Do
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db712e691af774c99f27148c3a83091a
https://doi.org/10.1002/dta.1741
https://doi.org/10.1002/dta.1741
Publikováno v:
Journal of pharmaceutical and biomedical analysis. 115
The quantitative analysis of a new designer doping agent, 2-ethylamino-1-phenylbutane (EAPB) and its metabolite, 2-amino-1-phenylbutane (APB) in urine samples, and the determination of EAPB in dietary supplement samples, have been presented. The main
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f106c88840bb51c491d3ef1a5f01505
https://pubmed.ncbi.nlm.nih.gov/26311473
https://pubmed.ncbi.nlm.nih.gov/26311473
Autor:
Ewa Bulska, Anna Jarek, Piotr Chołbiński, Katarzyna Chajewska, Katarzyna Kowalczyk, Dorota Kwiatkowska, Ewa Turek-Lepa, Andrzej Pokrywka
Publikováno v:
Chemical Papers. 69
Although various attempts have been made to eliminate doping in sport, hitherto they all have proved futile. Moreover, the main class of substances that jeopardises the fair play rule remains the same — anabolic androgenic steroids (AAS). To date,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3cbbb48420915074cece97a9b7781a5
https://doi.org/10.1515/chempap-2015-0030
https://doi.org/10.1515/chempap-2015-0030
Autor:
Dorota, Kwiatkowska, Marzena, Wójtowicz, Anna, Jarek, Catrin, Goebel, Katarzyna, Chajewska, Ewa, Turek-Lepa, Andrzej, Pokrywka, Rymantas, Kazlauskas
Publikováno v:
Drug testing and analysis. 7(4)
Reports of new designer agents banned in sport being detected in supplements widely available for athletes are constantly emerging. The task of anti-doping laboratories is to control athletes for the presence of substances listed by the World Anti-Do
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4c3f641120d595091303d8156cb651cf
https://pubmed.ncbi.nlm.nih.gov/25355281
https://pubmed.ncbi.nlm.nih.gov/25355281
Autor:
Anna, Jarek, Marzena, Wójtowicz, Dorota, Kwiatkowska, Monika, Kita, Ewa, Turek-Lepa, Katarzyna, Chajewska, Sylwia, Lewandowska-Pachecka, Andrzej, Pokrywka
Publikováno v:
Drug testing and analysis. 6(11-12)
Stimulants, together with anabolic androgenic steroids, are regarded as one of the most popular doping substances in sport. Owing to a great variety of these substances and new designer drugs being introduced to the market, each year the World Anti-D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::12403f6c3d0024ca6e112161f1d3f652
https://pubmed.ncbi.nlm.nih.gov/25421604
https://pubmed.ncbi.nlm.nih.gov/25421604
Publikováno v:
Tetrahedron: Asymmetry. 8:1741-1749
The asymmetric ene reaction of N-glyoxyloyl-(2R)-bornane-10,2-sultam 2 and its hemiacetal 3 with 1-pentene 4 and 1-hexene 5 in the presence of Lewis acids is reported. All the ene reactions studied led to diastereoisomeric mixtures of olefins 6 and 7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0232b6d34c42623120bfbf5c05386ed9
https://doi.org/10.1016/s0957-4166(97)00130-4
https://doi.org/10.1016/s0957-4166(97)00130-4
Publikováno v:
ChemInform. 28
The asymmetric ene reaction of N-glyoxyloyl-(2R)-bornane-10,2-sultam 2 and its hemiacetal 3 with 1-pentene 4 and 1-hexene 5 in the presence of Lewis acids is reported. All the ene reactions studied led to diastereoisomeric mixtures of olefins 6 and 7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4255d9f2241dc5fa581faa0cdad866a
https://doi.org/10.1002/chin.199742224
https://doi.org/10.1002/chin.199742224