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10.1002/jps.2600500312.abs Surface characteristics of particles and the intensity of particle interactions are presented as factors which may lead to caking of insoluble particles in aqueous dispersion. The degree of flocculation and the sediment volume were used as indexes of caking for...
10.1002/jps.2600500304.abs Boric acid and acidified solutions of borates have been qualitatively detected by the time‐honored test utilizing “turmeric paper.” While adequate, the test does present some difficulty in its interpretation. Unless certain precautions are taken the results of...
10.1002/jps.2600500309.abs A series of chemically unrelated compounds were evaluated and compared as to their relative cough suppressant activity in a group of varying test subjects. Graded responses were noted and detailed in the report.
10.1002/jps.2600500323.abs The auto‐oxidation product of apomorphine has been isolated. On the basis of elemental analysis, spectral evidence, as well as solubility and chromatographic behavior, it appears to be devoid of nitrogen, possibly an 8‐substituted phenanthrene‐3,4‐dione. A...
10.1002/jps.2600500306.abs The ultimate analysis of lipoidal matter extracted from the roots and tubers o Dioscorea macrostachya (Benth.) disclosed fatty acids present to be palmitic, stearic, oleic, and linoleic. The unsaponifiable matter yielded β‐sitosterol and the presence of unsaturated...
10.1002/jps.2600500321.abs Twenty‐four Wistar rats were subjected to three types of stress, four hours a day, four days per week, for a period of thirty‐five weeks in an attempt to produce hypertensive rats which could be utilized in the investigation of antihypertensive compounds. The blood...
10.1002/jps.2600500303.abs It has been found that alkaline aqueous solutions of various boric acids readily solubilize steroid molecules containing A cis‐1,2‐diol grouping. Both triamcinolone (9α‐fluoro‐l6α‐hydroxy‐prednisolone) and its synthetic precursor “F‐3”...
10.1002/jps.2600500307.abs The permanganate oxidation method of Schiaffino, et al., was applied to known mixtures of folic acid with iron salts, ascorbic acid, and other constituents of multivitamin‐mineral preparations. Some difficulty was experienced in the recovery of folic acid from these...
10.1002/jps.2600500311.abs A neutron activation analysis procedure was designed for the microanalysis of gold‐containing compounds, which eliminates all prior chemical separation and permits direct qualitative and quantitative analysis for gold in a γ‐ray scintillation spectrometer. The...
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