Optimisation of the reaction conditions for the direct determination of the dissolved combined amino acid levels in sea water

1988 ◽  
Vol 71 (2) ◽  
pp. 215-224 ◽  
Author(s):  
J. Chapman ◽  
J. Braven ◽  
M.I. Liddicoat ◽  
E.I. Butler
Keyword(s):  
Amino Acid ◽  
Sea Water ◽  
Direct Determination ◽  
Reaction Conditions ◽  
Amino Acid Levels

Direct determination of bromide ions in sea water by ion chromatography using water as the mobile phase

1996 ◽  
Vol 322 (1-2) ◽  
pp. 43-47 ◽  
Author(s):  
Hu Wenzhi ◽  
Cao Shun-an ◽  
Mamoru Tominaga ◽  
Akira Miyazaki
Keyword(s):  
Ion Chromatography ◽  
Mobile Phase ◽  
Sea Water ◽  
Direct Determination ◽  
Bromide Ions

A new gas chromatographic method for determination of amino acid levels in human serum

1980 ◽  
Vol 105 (2) ◽  
pp. 201-211 ◽  
Author(s):  
Hartmut Frank ◽  
Albert Rettenmeier ◽  
Helmut Weicker ◽  
Graeme J. Nicholson ◽  
Ernst Bayer
Keyword(s):  
Amino Acid ◽  
Human Serum ◽  
Chromatographic Method ◽  
Amino Acid Levels ◽  
Gas Chromatographic Method

Determination of amino acid levels in the rat striatum, after administration of ethanol alone and associated with ketamine, a glutamatergic antagonist

2008 ◽  
Vol 444 (1) ◽  
pp. 48-51 ◽  
Author(s):  
Silvânia Maria Mendes Vasconcelos ◽  
Gabriel Teixeira Montezuma Sales ◽  
Natália Martins Lima ◽  
Paula Matias Soares ◽  
Elaine Cristina Pereira ◽  
...  
Keyword(s):  
Amino Acid ◽  
Rat Striatum ◽  
Amino Acid Levels

A High Speed Method of Continuous Background Correction in Atomic Absorption Spectrometry. III. Direct Determination of Trace Metals in Sea Water Using the Varian Techtron Carbon Rod Atomizer Model 63

1975 ◽  
Vol 29 (2) ◽  
pp. 158-163 ◽  
Author(s):  
T. H. Donnelly ◽  
J. Ferguson ◽  
A. J. Eccleston
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Sea Water ◽  
Direct Method ◽  
Direct Determination ◽  
Absorption Spectrometry ◽  
Background Correction ◽  
Flame Atomic Absorption ◽  
Carbon Rod Atomizer

A newly developed method of background correction for atomic absorption spectrometry combined with the Varian Techtron carbon rod atomizer, model 63, has been applied to the direct determination of Pb, Zn, Fe, Cu, Ni, Co, and Cd in sea water. The background-corrected absorption measurements are reproducible and have a linear relationship to increasing additions of the metal over the ranges examined for the direct determination of metals in sea water. The values are comparable to those obtained by the accepted ammonium tetramethylenedithiocarbamate-methyl isobutyl ketone flame atomic absorption spectrometry method, within the limits of precision expected. However, except for Fe and Zn, the method is not sensitive enough to allow measurements at the lower concentration ranges of the metals in sea water. The direct method is a rapid technique for analyzing marine waters enriched in metals.

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