A New Method of Graphic Representation of Sample Analysed by XRF

1994 ◽  
pp. 741-746
Author(s):  
Rodolfo G. Figueroa ◽  
David G. Caro
Keyword(s):  
Graphic Representation ◽  
New Method

A New Method Of Graphic Representation Of Sample Analysed By XRF

1993 ◽  
Vol 37 ◽  
pp. 741-746
Author(s):  
Rodolfo G. Figueroa ◽  
David G. Caro
Keyword(s):  
Comparison Method ◽  
Graphic Representation ◽  
New Method ◽  
Sample Analysis ◽  
Xrf Analysis ◽  
Comparison Methods ◽  
Works Of Art ◽  
Good Sample

XRF nondestructive sample analysis is very convenient when applied to samples that should not be altered, for example, works of art or archeological pieces. When one has various similar samples of this characteristic, a good sample comparison method is necessary. There are various comparison methods among which the three component graphic representation allows a comparison in a throe element component. In an XRF analysis, a large number of peaks, representing emissions from K and L lines normally appear. When a well calibrated spectrum is provided, the determination of the elements in the samples is relatively simple. However, accuracy is difficult to acheive when results from many samples are to be compared.

Selective Sampling and Orientation of Non-Homogeneous Tissues

1968 ◽  
Vol 26 ◽  
pp. 98-99
Author(s):  
C. C. Clawson ◽  
L. W. Anderson ◽  
R. A. Good
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Light Microscopy ◽  
Random Sampling ◽  
New Method ◽  
Microscope Examination ◽  
Small Areas ◽  
Selective Sampling ◽  
Large Numbers ◽  
Specific Orientation

Investigations which require electron microscope examination of a few specific areas of non-homogeneous tissues make random sampling of small blocks an inefficient and unrewarding procedure. Therefore, several investigators have devised methods which allow obtaining sample blocks for electron microscopy from region of tissue previously identified by light microscopy of present here techniques which make possible: 1) sampling tissue for electron microscopy from selected areas previously identified by light microscopy of relatively large pieces of tissue; 2) dehydration and embedding large numbers of individually identified blocks while keeping each one separate; 3) a new method of maintaining specific orientation of blocks during embedding; 4) special light microscopic staining or fluorescent procedures and electron microscopy on immediately adjacent small areas of tissue.

A new method for the determination of nitrates

1960 ◽  
Vol 23 ◽  
pp. 227-232 ◽  
Author(s):  
P WEST ◽  
G LYLES
Keyword(s):  
New Method
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