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The information obtained about relevant reaction parameters can be
greatly increased by monitoring concentration changes during a
reaction. To achieve this goal, a fully automated system was
designed which handles both sampling and analysis. The sampling
system takes samples at predefined...
An enzyme immobilization technique has been developed to
determine the concentration of biological compounds. This technique
has been applied to penicillinase and urease, which are crosslinked
as very fine films directly onto the sensitive ends of pH glass
electrodes, thereby dispensing with...
RP-HPLC with automated pre-column OPA derivatization is
clearly a suitable alternative for assaying physiological AA and
may be particularly useful for AA present at low concentrations
(free tryptophan, plasma 3-methylhistidine).
A commercially available hydride generator, with a novel
membrane gas-liquid separator, has been coupled to a new ICPMS
instrument which itself features many unique design
considerations. Little or no optimization of the mass spectrometer or
ionization source was required to obtain excellent...
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