Analytical and quantitative concentration of gunshot residues (Pb, Sb, Ba) to estimate entrance hole and shooting-distance using confocal laser microscopy and inductively coupled plasma atomic emission spectrometer analysis: An experimental study

2013 ◽  
Vol 231 (1-3) ◽  
pp. 142-149 ◽  
Author(s):  
Emanuela Turillazzi ◽  
Giovanni Paolo Di Peri ◽  
Antonio Nieddu ◽  
Stefania Bello ◽  
Fabrizio Monaci ◽  
...  
Keyword(s):  
Experimental Study ◽  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Confocal Laser ◽  
Plasma Atomic Emission ◽  
Gunshot Residues ◽  
Inductively Coupled ◽  
Entrance Hole ◽  
Atomic Emission Spectrometer ◽  
Shooting Distance

scholarly journals Sample introduction valve used in ICP-AES for faster analysis

1989 ◽  
Vol 11 (2) ◽  
pp. 84-86 ◽  
Author(s):  
Helge Stray
Keyword(s):  
Inductively Coupled Plasma ◽  
Sampling Rate ◽  
Atomic Emission ◽  
Sample Introduction ◽  
Peristaltic Pump ◽  
Plasma Atomic Emission ◽  
Inductively Coupled ◽  
Atomic Emission Spectrometer ◽  
Time Required

A twin six-port valve with two sample loops was installed between the autosampler and the nebuliser of a simultaneous inductively coupled plasma-atomic emission spectrometer. The valve was mounted close to the nebuliser inlet so that the time required for the sample to enter from the loop to the nebulizer was less than 0.5 s. The content of one loop was introduced to the nebulizer using a peristalic pump, whilst a second loop was filed with the next sample using a second peristaltic pump. The washout time was in this manner reduced by 20 s per analysis and the hourly sampling rate was increased from 90 to 180 in the measurements described.

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