نتایج جستجو برای: spectrophotometry
تعداد نتایج: 9228 فیلتر نتایج به سال:
Journal:
:Astronomy & Astrophysics
2010
Journal:
:International Astronomical Union Colloquium
1996
Journal:
:Monthly Notices of the Royal Astronomical Society
1989
Journal:
:Monthly Notices of the Royal Astronomical Society
1988
Journal:
:Monthly Notices of the Royal Astronomical Society
1984
Journal:
:The Astrophysical Journal
1987
Journal:
:Journal of the Brazilian Chemical Society
2015
Journal:
:The Astronomical Journal
1965
Journal:
:Clinical chemistry
1978
P Carter
J E Wallace
K Blum
We present an improved method for ultraviolet spectrophotometry of theophylline in serum. We studied various extraction techniques aimed at eliminating interferences from co-extractable serum constituents. In the resulting modified procedure, 1 ml of serum is required and a salt-solvent pair of ammonium sulfate and chloroform/hexane is used for extraction. The solvent forms the top phase after ...
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