Development of an analytical method to quantify and identify multiple pesticides, antibiotics, and other residues in honey

AGRO 8

Steven J. Lehotay, slehotay@errc.ars.usda.gov1, Alan R. Lightfield, alightfield@errc.ars.usda.gov1, Katerina Mastovska, kmastovska@errc.ars.usda.gov1, and Hamide Z. Senyuva, hamide.senyuva@tubitak.gov.tr2. (1) Eastern Regional Research Center, USDA Agricultural Research Service, 600 East Mermaid Lane, Wyndmoor, PA 19038, (2) Ankara Test and Analysis Laboratory, TUBITAK, Konya Yolu No. 67, Besevler, Ankara 06330, Turkey
Honey is an important commodity in countries around the world, particularly in Turkey, which must meet the regulations of export markets. For analytical testing of honey, the use of a single method for diverse chemical residues (e.g., pesticides and antibiotics) would save time, cost, and labor versus the current approach of using several different methods. A list of >40 analytes was compiled based on Turkey and U.S. regulations and monitoring needs, which include naphthalene, chloramphenicol, tetracyclines, sulfonamides, streptomycin, and many pesticides. The QuEChERS approach was evaluated for sample preparation, and gas chromatography/mass spectrometry (GC-MS) and liquid chromatography/tandem mass spectrometry (LC-MS/MS) were used for identification and quantification of the diverse analytes. For GC-MS, a unique automated, large-volume direct sample injection approach was used to lower detection limits and improve ruggedness. Novel aspects related to the development of a single method to cover such a wide range of chemical residues will be presented.
 

Agrochemical Residue & Metabolism Chemistry
8:30 AM-11:30 AM, Sunday, 10 September 2006 San Francisco Marriott -- Salon 1, Oral

Division of Agrochemicals

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006