Determination of copper in foods by atomic absorption spectrophotometry

1970 ◽  
Vol 21 (10) ◽  
pp. 535-536 ◽  
Author(s):  
A. G. Cameron ◽  
D. R. Hackett
Keyword(s):  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
Absorption Spectrophotometry ◽  
Determination Of Copper

Collaborative Study Using Atomic Absorption Spectrophotometry for the Determination of Copper in Alcoholic Products

1967 ◽  
Vol 50 (2) ◽  
pp. 338-339
Author(s):  
Duane H Strunk ◽  
A A Andreasen
Keyword(s):  
Atomic Absorption ◽  
Spectrophotometric Method ◽  
Collaborative Study ◽  
Atomic Absorption Spectrophotometry ◽  
Good Precision ◽  
Absorption Method ◽  
Standard Curve ◽  
Absorption Spectrophotometry ◽  
Determination Of Copper

Abstract A collaborative study was conducted on the 'atomic absorption spectrophotometric method for measuring the concentration of copper in alcoholic products. In this method, the samples are aspirated directly into the burner of the instrument, and the absorhance values are converted to ppm copper by reference to a standard curve. Data show good precision and are comparable to those obtained by the ZDBT method. It is recommended that the atomic absorption method be adopted as official, first action.

scholarly journals Merging Zones Standard Addition Technique for Determination of Copper in Beer by Flow Injection Atomic Absorption Spectrophotometry

1998 ◽  
Vol 81 (3) ◽  
pp. 645-647 ◽  
Author(s):  
Sílvia M V Fernandes ◽  
António O S S Rangel ◽  
José L F C Lima
Keyword(s):  
Atomic Absorption ◽  
Flow Injection ◽  
Sampling Rate ◽  
Reference Method ◽  
Atomic Absorption Spectrophotometry ◽  
Injection System ◽  
Absorption Spectrophotometry ◽  
Standard Additions ◽  
Determination Of Copper

abstract A flow injection system for determination of copper in beer by atomic absorption spectrophotometry by the standard additions method is described. The manifold, based on the merging zone technique, prevents the burner head from clogging, as observed with the conventional reference method. With 5 standard additions, results are comparable with those of the reference method. Relative deviations were less than 5.8%, precision was better than 6.4%, and sampling rate was about 30 samples/ h. A less precise, less accurate, but faster procedure (75 samples/h) is possible with only 2 standard additions. The detection limit was 5µg/l.

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