منابع مشابه
determination of maximal singularity free zones in the workspace of parallel manipulator
due to the limiting workspace of parallel manipulator and regarding to finding the trajectory planning of singularity free at workspace is difficult, so finding a best solution that can develop a technique to determine the singularity-free zones in the workspace of parallel manipulators is highly important. in this thesis a simple and new technique are presented to determine the maximal singula...
15 صفحه اولDetermination of hydroxylysine in urine.
A new method for colorimetric determination of urinary hydroxylysine is described. Approximately one-hundredth of human urine collected for 24 hr was diluted to 25 ml and titrated to pH 2.0 with 2 hcl, and then subjected to column chromatography on Dowex 50 X 4 (H+ form). Amino acids were eluted from the column with 1.5 N NH4OH. Hydroxylysine in the elute with 1.5 N NH4OH was separated from th...
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THE LOSS OF MERCURY due to volatilization and incomplete removal of oxidizing agents which destroy dithizone are among the major problems in determining mercury in urine. This paper describes a method by which these difficulties are reduced to a minimum. In actual use, this method has been found efficient in screening large numbers of workers exposed to a mercury hazard. Most methods require a ...
متن کاملDetermination of urine dopamine.
The Duliere and Raper conversion of dopamine to 5,6-hydroxyindole is applied to urinary dopamine, which is concentrated and recovered by adsorption (pH 8.5-9.0) on and elution with dilute acetic acid from alumina. The spectrofluorometric readings are made at pH 5.3, with activation and fluorescence at 320 and 375 mjz, respectively. Proportionality between high and low internal standards is achi...
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An ion pair reversed phase HPLC method for the determination of clavulanic acid has been developed. Since clavulanic acid had poor absorption O,mas 201 nm in water) in a UVregion suitable for HPLC detection, the detectability was enhanced by bathochromic shift of )maa due to solvent effect. The shifts of 2ma.., were measured with the solutions containing clavulanic acid, tetrabutylammonium brom...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1943
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)72319-3