PHOTOMETRIC DETERMINATION OF TOTAL PHOSPHORUS IN CERTAIN FOOD PRODUCTS

The Determination of Certain Formaldehyde Releasers in Cosmetic Products

Structure of Certain Banach Algebra Products

Let  and  be Banach algebras, ,  and . We define an -product on  which is a strongly splitting extension of  by . We show that these products form a large class of Banach algebras which contains all module extensions and triangular Banach algebras. Then we consider spectrum, Arens regularity, amenability and weak amenability of these products.

The Pulsed Flame Photometric Detector for analysis of phosphorus pesticides in wastewater and food commodities

The PFPD has advantages over the other two phosphorus sensing GC detectors: 1) the Thermionic Specific Detector (TSD), a nitrogen-phosphorus detector, and 2) the Flame Photometric Detector (FPD). Comparisons are made between these detectors. Finally, high speed data acquisition firmware and software that allows one to easily set up the PFPD and review the pulsed emission data emanating from eac...

Photometric Determination of Estrogens

The Kober color test for the identification of natural estrogens (1) is a 2-phase reaction. The first effect of heating estrogens with the phenolsulfonic acid reagent is the production of a yellowish brown-colored solution; when this solution is chilled, carefully diluted with water, and then reheated, its color gives way to a characteristic pink. The Z-phase nature of the reaction renders its ...

Chromatographic Determination of Pesticides in Foods and Food Products

The newest results in the chromatographic analysis of pesrticides present in foods and food products are collected and the results are critically evaluated. Examples for the employment of preconcentration and prepurification technologies, gas chromatography using ECD, NPD, MS and MS/MS detection methods, liquid chromatographic methodologies such as thin-layer chromatography, high performance li...