George Schwartzman

Bio: George Schwartzman is an academic researcher from Food and Drug Administration. The author has contributed to research in topics: Infrared spectroscopy & Paper chromatography. The author has an hindex of 4, co-authored 10 publications receiving 44 citations.

Association of official analytical chemists: 1964-1988

Abstract: In 1964, William Horowitz published the history of the Association of Official Agricultural Chemists (AOAC), of which he was the chief executive officer (Horwitz 1964). At that time the AOAC had existed for 80 years and had ventured very little beyond its stated purpose of validating and publishing standardized methods of analysis for substances important to agriculture and the public health through a highly structured system of interlaboratory testing and review. In the ensuing quarter of a century, however, the AOAC not only changed its name to Association of Official Analytical Chemists but also underwent a striking expansion and transformation. The highlights of that transformation are the subject of this account.

Les composés phénoliques des miels : étude préliminaire sur l'identification et la quantification par familles

Abstract: HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Les composés phénoliques des miels : étude préliminaire sur l’identification et la quantification par familles M.J. Amiot, S. Aubert, M. Gonnet, M. Tacchini

Handbook of Processed Meats and Poultry Analysis

Abstract: Handbook of processed meats and poultry analysis , Handbook of processed meats and poultry analysis , کتابخانه مرکزی دانشگاه علوم پزشکی تهران

Use and residues of mercury compounds in agriculture

Abstract: Mercury compounds were first used in Germany as seed dressings to control seed-borne diseases of cereals about 1914. ‘Uspulun’, described as a ‘chlorophenolmercury’ compound was placed on the market in 1915 by Bayer A.G. as a liquid dressing and was soon widely used. Dusts, such as ‘Ceresan’, at first having phenylmercury acetate as the active ingredient and, subsequently, a methoxyethylmercury compound, and ‘Agrosan’, a tolylmercury acetate formulation, became more widely used ten years later. Liquid treatments, using alkylmercury active ingredients, were reintroduced about the time of World War II because of the reduced hazards and inconvenience to operators dressing the grain in specially designed machines, although alkylmercury compounds are more toxic than arylmercurials. In Sweden it has recently been found that the extensive use of alkylmercury compounds can lead to harmful contamination of the environment and there they have been replaced by other organomercury compounds. In most countries both liquid and dust treatments are commonly used. Formulations containing organo- mercurials have been found to give a better control of fungal diseases of grain than non-mercurial formulations.

Abundant microorganism in soil.

Abstract: The presence in soil of large numbers of a catalase-negative, microaerophilic, coccoid microorganism was demonstrated. Use of media of high nutrient value, without incorporation of inhibitors, and growth in the absence of antagonistic microorganisms were utilized to isolate this organism from soil dilutions greater than those providing growth by other means. The organism described does not grow on soil extract agars and is missed by conventional counting techniques for soil organisms. On the basis of morphological and growth characteristics, this organism appears to have at least some taxonomic relationships to the families Actinomycetaceae and Mycobacteriaceae. It is proposed that this organism makes up much of the coccoid microflora of soil as observed by light and ultraviolet fluorescence microscopy.