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10.1002/jps.2600651006.abs Equations are derived for the isotropic dissolution of single particles, considering simple forms of the six crystal systems. These can be summarized by three basic equations which are approximated well, and in some cases exactly, by the dissolution equation for a...
10.1002/jps.2600651039.abs Fifteen reaction products of isothiocyanates with cysteine, seven reaction products of isothiocyanates with 2,3‐dimercapto‐1‐propanol, and four reaction products of isothiocyanates with sulfanilamide were synthesized. Their antimicrobial activity against...
10.1002/jps.2600651017.abs The ground mixture of phenytoin and microcrystalline cellulose was prepared by grinding in a vibrational ball mill. The X‐ray diffraction patterns indicated the amorphous nature of the ground mixture. Comparative studies were made concerning the in vitro dissolution...
10.1002/jps.2600651038.abs (—)‐Loliolide was isolated as a native compound from Canscora decussata Schult (Gentianaceae). Physical and spectral (UV, IR, PMR, CMR, and mass spectra) properties of the compound and its acetate derivative established its identity. The significance of the...
10.1002/jps.2600651010.abs 36S‐Furosemide was administered to beagle dogs and rhesus monkeys in an oral solution on a single and a 20 repeated 5‐mg/kg/day dosing regimen. Following the single dose, 25.0% (dogs) and 24.0% (monkeys) of the dose were excreted in the urine in 24 hr. TLC analysis...
10.1002/jps.2600651024.abs A mass spectral method is described for the structure determination of glucuronic acid conjugates of hydroxyphenylal‐kylaminoethanol‐type drugs. Trimethylsilylation and application of the GLC‐mass spectral technique yield mass spectra with sufficient information...
10.1002/jps.2600651035.abs The quantitative analysis of a new pharmaceutically active amine hydrochloride is described. Samples are extracted with chloroform. A yellow amine‐dye complex is formed by buffering a sample‐bromthymol blue solution at pH 8.5 ± 0.1 and subsequently extracted with...
10.1002/jps.2600651019.abs Single lots of 11 commercially available 500‐mg sulfisoxazole tablets were evaluated in vitro and in vivo. All products tested met USP XVIII specifications for weight variation and product assay. However, three products failed to meet the USP XVIII dissolution...
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