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2.401  Articles
1 of 241 pages  |  10  records  |  more records»
The evaluation of uncertainty measurement in the determination of Fe content in powdered tonic food drink using graphite furnace atomic absorption spectrometry was carried out. The specification of measurand, source of uncertainty, standard uncertainty, c... see more

Counterfeit cosmetics are a large problem in the world today because they are cheap and easy to purchase. However, many are unaware of the counterfeit cosmetics’ ingredients as they are not mandated to comply with the American Food and Drug administration... see more

Catharanthus roseus (C. roseus) is considered as one of the medicinal and herbal plants that has great importance around the world. Botanical genus of Apocyanaceae Family, which have five types. C. roseus contains many compounds characterized by their med... see more

Dalam penelitian ini, dikembangkan suatu metode analisa Cu dengan menggunakan peralatan pemekatan yang telah dikembangkan sebelumnya(1). Dengan ini dimungkinkan dapat dilakukan analisa Cu dengan konsentrasi yang sangat rendah. Ion Cu pada kadar rendah (tr... see more

A total of 100 fresh hen's egg samples (pooled samples) including farmers' houses and poultry farms' eggs  were collected for estimation of lead, cadmium and copper levels (50 pooled samples for each type, each pooled was represented by 5 eggs). Poul... see more

Samples were processed by atomic absorption spectrometry method, with air acetylene flame and graphite furnace using AAS UNICAM 939 with solar program and ASA 50 PLUS VARIAN, wet digestion method, according to the manual issued by the Romanian Institute f... see more

The article highlights the development of cheap affordable highly efficient catalytic oxidation system of harmful components of industrial flue gases of carbon graphite enterprises, its design features according to the parameters of furnace equipment, whi... see more

The flame atomic absorption (AA) spectroscopy method for determination of cadmium (Cd) in cocoa almond (Theobroma cacao) used by Agrocalidad is toxic to humans and the environment; that is why we use the atomic absorption spectroscopy method with graphite... see more

Microwave assisted wet digestion of high-purity graphite was successfully accomplished at atmospheric pressure using an open-focused system. Samples of 0.2 -3 g mass were treated with a 1:2 (Ê‹/Ê‹) mixture of HNO3 and H2SO4. Measurements of the residual o... see more

1 of 241 pages  |  10  records  |  more records»