Multiresidue Analysis of Insecticides and Other Selected Environmental Contaminants in Poultry Manure by Gas Chromatography/Mass Spectrometry

An analytical method was developed for the simultaneous determination in poultry manure of 41 organic contaminants belonging to different chemical classes: pesticides, polycyclic aromatic hydrocarbons, polychlorinated biphenyls, and polybrominated diphenyl ethers. Poultry manure was extracted with a modified QuEChERS method, and the extracts were analyzed by isotope dilution GC/MS. Recovery of these contaminants from samples spiked at levels ranging from 25 to 100 ng/g was satisfactory for all the compounds. The developed procedure provided LODs from 0.8 to 9.6 ng/g. The analysis of poultry manure samples collected on different farms confirmed the presence of some of the studied contaminants. Pyrethroids and polycyclic aromatic hydrocarbons were the main contaminants detected.

Cooperative research and development agreement with ABB Environmental Systems : emission control from coal-fired boilers and municipal and hazardous waste incinerators.

Mode of access: Internet.

Where to look for the law. A catalogue of L.C.P. co.'s books, and a brief subject index of other useful legal text work.

Mode of access: Internet.

Report on surveys, research projects, investigations and other organized fact-gathering activities of the Government of Puerto Rico.

Mode of access: Internet.

Soviet research and development in mass transfer chemical engineering unit operations.

"PAL 60-16"

Administrative practices supplement to the NIH Guidelines for research involving recombinant DNA molecules : policies and administrative procedures for recombinant DNA research subject to the NIH Guidelines /

"June 1979."

Protection of the individual as a research subject; grants, awards, contracts.

Mode of access: Internet.