scholarly journals An experimental approach to the determination of the gross activity of uranium, plutonium, americium and strontium in human biological samples using solid-state scintillation

2018 ◽  
Vol 10 (1) ◽  
pp. 25-32 ◽  
Author(s):  
Jiři Janda ◽  
Jitka Ticha
Keyword(s):  
Solid State ◽  
Biological Samples ◽  
Experimental Approach ◽  
Uranium Plutonium

Screen Printed Solid State Contact Biosensors for the Determination of Urea in Undiluted Biological Samples

1994 ◽  
pp. 142
Author(s):  
Bemhard P.H Schaffar ◽  
Andreas M. Dolezal ◽  
Wolfgang P. Kienberger ◽  
Helmut Offenbacher ◽  
Josef Riegebauer ◽  
...  
Keyword(s):  
Solid State ◽  
Biological Samples ◽  
Screen Printed

Experimental Determination of the Effective Resolution Limit in Thick Specimens at High Voltages

1975 ◽  
Vol 33 ◽  
pp. 664-665
Author(s):  
Mircea Fotino
Keyword(s):  
Experimental Approach ◽  
Chromatic Aberration ◽  
Resolving Power ◽  
Biological Research ◽  
Specimen Thickness ◽  
Resolution Limit ◽  
High Voltage Electron Microscopy ◽  
Voltage Electron ◽  
Resolution Level

The use of thick specimens (0.5 μm to 5.0 μm or more) is one of the most resourceful applications of high-voltage electron microscopy in biological research. However, the energy loss experienced by the electron beam in the specimen results in chromatic aberration and thus in a deterioration of the effective resolving power. This sets a limit to the maximum usable specimen thickness when investigating structures requiring a certain resolution level.An experimental approach is here described in which the deterioration of the resolving power as a function of specimen thickness is determined. In a manner similar to the Rayleigh criterion in which two image points are considered resolved at the resolution limit when their profiles overlap such that the minimum of one coincides with the maximum of the other, the resolution attainable in thick sections can be measured by the distance from minimum to maximum (or, equivalently, from 10% to 90% maximum) of the broadened profile of a well-defined step-like object placed on the specimen.

Determination of Protein in Biological Samples Using a Thiosemicarbazone Derivative as a Fluorescence Probe

2013 ◽  
Vol 30 (5) ◽  
pp. 555
Author(s):  
Shaoguang GENG ◽  
Xiaoying JIANG ◽  
Fengling CUI ◽  
Lei SHI
Keyword(s):  
Biological Samples ◽  
Fluorescence Probe
Sign in / Sign up

Export Citation Format

Share Document