2021
A simple dilute-and-shoot procedure for the determination of platinum in human pleural effusions using HR-CS GF-AAS
ZVĚŘINA, Ondřej, Ondřej VENCLÍČEK, Jan KUTA, Pavel COUFALÍK, Ingrid HAGAROVÁ et. al.Základní údaje
Originální název
A simple dilute-and-shoot procedure for the determination of platinum in human pleural effusions using HR-CS GF-AAS
Autoři
ZVĚŘINA, Ondřej (203 Česká republika, garant, domácí), Ondřej VENCLÍČEK (203 Česká republika, domácí), Jan KUTA (203 Česká republika, domácí), Pavel COUFALÍK (203 Česká republika), Ingrid HAGAROVÁ (203 Česká republika) a Kristián BRAT (703 Slovensko, domácí)
Vydání
Journal of Trace Elements in Medicine and Biology, Munich, Elsevier, 2021, 0946-672X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30202 Endocrinology and metabolism
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.995
Kód RIV
RIV/00216224:14110/21:00122493
Organizační jednotka
Lékařská fakulta
UT WoS
000708644700009
Klíčová slova anglicky
Lung cancer; Platinum; Pleural effusion; HR-CS GF-AAS
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 7. 12. 2021 08:18, Mgr. Tereza Miškechová
Anotace
V originále
Background High-resolution continuum source AAS is an emerging technique for the determination of trace elements in clinical analysis. We aimed to develop a method for the direct determination of platinum (Pt) in pleural effusions that could deepen the understanding of the dynamics of intrapleural Pt concentration during cytostatic therapy. Materials and methods Samples were collected by thoracic drainage from five patients with lung cancer undergoing platinum based chemotherapy. A simple dilute-and-shoot method for Pt determination in the pleural effusions was developed. Ashing of the sample in an oxygen flow in a graphite tube allowed for direct analysis without prior mineralization. The trueness of the method was verified using an independent technique (ICP-MS). As platinum derivatives are only active in its free form (not bound to proteins), Pt in samples was further divided into free and protein-bound forms by means of ultrafiltration. Results Using the proposed method, Pt contents (free and total) were determined in samples collected at different times after the intravenous application of the Pt derivative. The concentration of total Pt reached values of up to 5,000 μg/L and different patterns of its dynamics in intrapleural fluid were observed. Conclusions The developed method enables the fast and simple determination of Pt in biological fluids. It may be applied on a large scale to improve the understanding of Pt dynamics during cytostatic therapy, and also to determine the optimal timing of both thoracic drainage and administration of systemic chemotherapy.
Návaznosti
EF17_043/0009632, projekt VaV |
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LM2018121, projekt VaV |
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MUNI/A/1608/2020, interní kód MU |
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