The phosphorus assay method of Lowry and Lopez has been modified to permit a rapid and accurate determination of inorganic phosphorus in the presence of organic phosphorus without prior deproteinization of the samples. The reduction of ammonium phosphomolybdate to molybdenum blue is carried out with
Determination of phosphoethanolamine in urine or in the presence of high taurine concentrations
✍ Scribed by G. Gundlach; A. Käbisch; R. Voegeli; H. Pralle; S. Hartenfels
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 268 KB
- Volume
- 142
- Category
- Article
- ISSN
- 0003-2697
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✦ Synopsis
Phosphoethanolamine forms a low-solubility lead salt, which may be precipitated from urine together with inorganic phosphate, thus separating taurine, urea, and other interfering substances of chromatographic determination. Fluorometric detection of phosphoethanolamine with ophthaldialdehyde after elution from a Dowex 50-X10 column enhances the specificity of the method once more. The method described is fast and easy to perform. o 1984 Academic PKSS. IX.
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