Impact of various factors on radioactivity distribution in different DBS papers

Autor: Xiao Ren, Zuyu Guo, Manfred Zimmer, Gary T Emmons, Patricia Zane, Tobias Paehler
Rok vydání: 2010
Předmět:
Zdroj: Bioanalysis. 2:1469-1475
ISSN: 1757-6199
1757-6180
DOI: 10.4155/bio.10.96
Popis: Background: Dried blood spot (DBS) sampling could potentially become the preferred blood collection technique in toxicological and clinical studies. Autoradiography was performed to study compound distribution within a dbs under different conditions using five papers, 31ETF, Grade 226, 903®, FTA® and FTA® Elute. Results: The results showed an uneven distribution in all papers with common distribution patterns regardless of compounds: decreased concentrations along the edge, the volcano effect in the middle and the speckle pattern in the center. Treated papers were more readily influenced by environmental factors. Conclusion: Autoradiography enables visualization of a compound’s distribution and can guide bioanalytical assay development by allowing convenient evaluation of factors, such as choice of paper, spotting volume, punch size, punch location, temperature and humidity.
Databáze: OpenAIRE