A specific HPLC (High-Performance Liquid Chromatography) method has been developed and validated for the determination of vanillyl butyl ether in cosmetic products. The extraction procedure with an isopropanol water 1:1 mixture is described. The method uses a RP-C-18 column with isocratic elution and an ultraviolet (UV) detector. The mobile phase consists of a mixture of acetonitrile and buffer (Na2HPO4 20 mM in water) (30:70 v/v) with a variable flow rate. The method was validated with respect to accuracy, precision (repeatability and reproducibility), specificity and linearity. The procedure described here is simple, selective and reliable for routine quality control analysis and stability tests of commercially available cosmetic products.
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Abstract The incidences of thyroid cancer keep rising worldwide over the past few decades. Although most thyroid cancers are indolent and ...
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Abstract Amyloid beta peptide (Aβ), the main component of senile plaques of Alzheimer’s disease brains, is produced by sequential cleavage ...
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Coexistence of t(5;17)/NPM1-RARA and t(9;22)/BCR-ABL1 in chronic myeloid leukemia at initial diagnosis Juvenile myelomonocytic leukemia: a s...
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Abstract Background Hyponatremia is associated with the increased risk of early and late mortality in patients with cardiac disease. Thi...
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ACS Nano DOI: 10.1021/acsnano.7b02426 from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2h1neaG via...
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We set out to estimate net survival trends for 10 common cancers in 279 cancer registry populations in 67 countries around the world, as par...
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Publication date: Available online 17 January 2018 Source: Journal of Infection and Chemotherapy Author(s): Nobuyasu Hirai, Kei Kasahara, ...
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Background Epidemiology of Neisseria meningitidis has been changing since the introduction of universal vaccination programmes against meni...
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In metastatic breast cancer, the status of the estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor recepto...
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