Background: This study consists of two parts. The first part deals with both qualitative and quantitative analysis of 226Ra using alpha spectrometry measurement method. In the second part, the percentage of radioactive equilibrium between 226 Ra and its daughter products were determined by alpha spectrometry and total alpha measurement system after elapsed time of 15 days from precipitation. Ma...

background many members of the genus satureja have aromatic and medicinal characteristics. objectives results thymol (34.5%), γ-terpinene (18.2%) and ρ-cymene (10.5%) were the main components of the essential oil. the toxicological study on 5637 and kyse cell lines showed ic50 values of 156 μg/ml. the essential oil exhibited considerable antimicrobial activity on tested bacteria and fungi. mate...

this study was conducted to determine the radioactivity concentration in soil samples of anarak-khour district located at central iran. 48 soil samples from a depth of 10-15 cm were taken from seven different sites for monitoring. the radioactivity concentration of 238u, 232th, 137cs and 40k in soil samples was determined, using a high resolution (hpge detector, p-type) γ-spectrometry by detect...

proteomics has emerged since 1995 for studying the total proteome of cells, tissues, or organisms at any condition. the study of proteins has a fundamental importance because they are the functional and final molecules of the gene expression process and proteomics could be a valuable technique for achieving this purpose. mass spectrometry is a complementary technique for proteomics that allows ...

1. Accelerator mass spectrometry (AMS) 1.1. Reviews 1.2. AMS systems 1.3. Methodology 1.4. Developments in radiocarbon analysis 1.5. Developments in the measurement of elements other than carbon 2. Electrospray mass spectrometry (ESMS) 3. Gas chromatography-electron ionization mass spectrometry (GC-EIMS) 4. Glow discharge mass spectrometry (GDMS) 4.1. Reviews 4.2. Instrumentation 4.3. Analytica...

Background: It is believed that the loading value of anticancer drug conjugated to the monoclonal antibody, called drug-to-antibody ratio (DAR), is the main quality feature of antibody-drug conjugates. Methods: In this study, matrix assisted laser desorption/ionization mass spectrometry was used to determine the average molecular weight of trastuzumab and its three conjugated forms. The differe...