منابع مشابه
Fluorometric determination of histidine.
A. FLUOROMETRIC METHOD for the determination of histidine was developed in response to the need for an accurate and precise manual method for the confirmation of histidinemia (1). it is based on the fluorometric method of Shore et a!. (2), which involves the condensation of histaniine with o-phthalaidehyde (OPT) in a strongly alkaline solution to form a rather labile fluorescent compound which ...
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With 4-chloro-7-nitrobenzo-2, 1,3-oxadiazole (I), fluorescent derivatives of propoxyphene can be prepared, thus enabling quantitation of the drug in biological samples. This technique offers an acceptable alternative to gas chromatographic (1-5) or ultraviolet spectrophotometric (6, 7) procedures. Favorable aspects of the fluorometric technique are high sensitivity, specificity, potential for r...
متن کاملImproved fluorometric determination of malonaldehyde.
Lipoperoxidation is implicated in various pathological conditions. Malonaldehyde (MDA) is the most commonly used marker of this process. We propose simple modifications to Yagi's fluorometric assay for MDA determinations, to avoid long and tedious manipulations by eliminating the first precipitation and washing steps, analogous to HPLC methods, and to increase both the sensitivity and the speci...
متن کاملKinetic fluorometric determination of aluminum in serum.
We describe a simple fluorometric method for determining aluminum in serum samples by monitoring the rate of reaction of 2-hydroxy-1-naphthaldehyde-p-methoxybenzoylhydrazone with aluminum ions. The emission of the resulting fluorescent metal-chelate formed is measured at 475 nm. Aluminum was measured in the supernate of serum after proteins were removed by precipitation with concentrated nitric...
متن کاملSimplified fluorometric determination of salicylate in plasma.
diagnosis and prognosis of hypogonadic subjects, particularly in the phase of pubertal spurt. Sources of discordance have been ascribed to ultra-sensitivity of methods (1), attributable to the use of monoclonal antibodies. Their high specificity could emphasize heterogeneity of LH molecular species, particularly if the proportions of the various forms differ in particular pathological states (2).
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1974
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.22.1910