منابع مشابه
In vitro quantitative chemical analysis of tattoo pigments.
BACKGROUND The composition of cosmetic tattoos might prove relevant to their treatment by high-powered lasers. OBJECTIVES To test the accuracy and completeness of information supplied by the tattoo ink manufacturers and to perform an elemental assay of tattoo pigments using scanning electron microscopy with energy-dispersive x-ray analysis. DESIGN Samples of 30 tattoo inks were examined usi...
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Metabolic acidosis is a common finding after cardiac arrest. Until recently this acidosis was mainly attributed to lactate. The physico-chemical approach to acid-base balance permits the detection of previously unmeasured ions. These ions have been shown to affect the acid-base status of patients.
متن کاملUsing PGSE NMR for chemical mixture analysis: Quantitative aspects
Pulsed gradient spin echo NMR coupled with a data processing approach such as direct exponential curve resolution algorithm may be used to resolve individual components in a mixture. Differences in the diffusivities of the components lead to differences in their signal decay behavior in the experiment and allow for pure component spectra to be resolved. Because the experiment is echo-based, dif...
متن کاملFormal Quantitative Analysis of Reaction Networks Using Chemical Organisation Theory
Abstract. Chemical organisation theory is a framework developed to simplify the analysis of long-term behaviour of chemical systems. An organisation is a set of objects which are closed and self-maintaining. In this paper, we build on these ideas to develop novel techniques for formal quantitative analysis of chemical reaction networks, using discrete stochastic models represented as continuous...
متن کاملQuantitative Chemical Studies on Hemolysins
1. Total antibody in hemolysins may be estimated from the nitrogen added to sheep stromata suspensions. 2. The method is applied to a number of hemolysins and a correlation, valid to within 20 per cent, established between hemolytic titer and total antibody. 3. When stromata combine with antibody in the presence of guinea pig complement they may take up at least 80 per cent of their weight of c...
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1959
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed036p363.1