Determination of Residual Organo-phosphorus Insecticides in Foodstuffs

The Thermochemistry of Some Organo- Phosphorus Compounds

After the combustions, the phosphoric acid was, in fact, in aqueous solution, so that a correction for the heat of solution was necessary. These combustions were made in a static bomb, and as a result the concentration of phosphoric acid probably varied considerably in different parts of the bomb, leading to the comparatively large error of ±O·l per cent, associated with the heats of combustion...

Biochemistry of Organic Phosphorus Insecticides

Bamberger, E. (1903). Ber. dtsch. chem. Ge8. 36, 2042. B6hal, M. A. (1900). Ann. Chim. (Phy8.), 20, 411. Bouveault, L. (1893). Bull. Soc. chim., Pari8, 9, 368. Bratton, A. C. & Marshall, E. K. jun. (1939). J. biol. Chem. 128, 537. Bray, H. G., Hybs, Z. & Thorpe, W. V. (1951). Biochem. J. 48, 192. Bray, H. G., Lake, H. J., Neale, F. C., Thorpe, W. V. & Wood, P. B. (1948). Biochem. J. 42, 434. Br...

Method 1657: The Determination of Organo-Phosphorus Pesticides in Municipal and Industrial Wastewater

Determination of acrylonitrile in materials in contact with foodstuffs.

Monitoring of the content of free acrylonitrile in plastics used for the preparation of viands is necessary due to its negative effect on human health. A content of 20 ppb is the maximal value of free acrylonitrile in such samples. In this case, head-space gas chromatography is most favourable analytical method when combined with the standard addition method together with a mass-spectrometry de...

Residual archives on organochlorine insecticides in the core sediment of a tropical estuary, India

A comprehensive evaluation of the residual levels of Organochlorine insecticides (OCIs) in the sediment cores of Cochin Estuarine System (CES) is highlighted in this research article. It assessed the distribution pattern and impact of these xenobiotics in this environmental niche. Fifteen persistent organochlorine compounds (OCs) were quantitatively analysed in the six sediment core samples col...