Chemical Analysis Articles & Analysis
6 articles found
An isotope is one of two or more atoms of the same chemical element with the same atomic number, occupying the same position on the periodic table and having almost identical chemical behavior, but with different atomic weights or mass numbers, which results in differences in mass spectral behavior, radioactive transitions, and physical properties (e.g., ...
Quality control of hair, skin, and dentalcare products continues to increase in importance for producers. Aside from safeguarding our health, it is equally important to avoid the sale of out-of-specification products. Product recalls are very expensive and have a lasting effect on a company’s reputation. Therefore, intensive testing of these different care products is essential before ...
Drug analysis refers to the detection and analysis of ingredients and contents in drugs. Drug analysis and testing involves the study of composition, physical and chemical properties, purity, and the determination of the content of active pharmaceutical ingredients and their preparations, to ensure that the medications are safe, ...
Research Scope on Drug Stability Analysis Chemical stability refers to changes in drug content (or potency) due to chemical reactions such as hydrolysis and oxidation. ...
Total removal efficiencies for estrogenic activity in the dissolved phase were 79.8 to 99.4%. Chemical analysis of 17β‐estradiol, estrone and 17α‐ethinylestradiol levels showed that they accounted for the majority of the observed in vitro estrogenic activity in the final effluents but only 18 to 70% of estrogenic activity in the influents. ...
X-ray radiography of soil cores was used as the primary test method to determine the reasons for the permeation of perchloroethylene into apparently impermeable clay layers at a hazardous chemical spill site. X-ray powder diffractometry, scanning electron microscopy, and chemical analysis were also performed to characterize the materials and ...