Indirect determination of micro amounts of medicinal drugs by atomic-absorption spectrometry-measurement of L-ascorbic acid

1981 ◽  
Vol 76 (3-4) ◽  
pp. 329-334 ◽  
Author(s):  
Yoshinori Kidani ◽  
Reiko Umemoto ◽  
Kenji Inagaki
1994 ◽  
Vol 59 (10) ◽  
pp. 2227-2234 ◽  
Author(s):  
Václav Stužka ◽  
Jaromír Souček

A new method has been developed for the indirect determination of nitroso- and nitrophenols by atomic absorption spectrometry (AAS) after extraction of ionic associates involving bipyridylocopper(II) (CuDP) or phenanthrolinocopper(II) (CuPH) complexes. Nitrobenzene and methyl isobutyl ketone appeared to be suitable for the extraction. It was possible to determine several tenths to hundredths of a milligram of nitrophenol in a litre. Extractable associates with CuDP and CuPH are formed by phenols possessing two substituents or by higher molecular weight phenols such as naphthol or hydroxyquinoline. Monosubstituted phenols fail to form associates of this kind.


1992 ◽  
Vol 106 (3-6) ◽  
pp. 183-190 ◽  
Author(s):  
Sarnath Chattaraj ◽  
Kuntala De ◽  
Arabinda K. Das

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