Channeling all of the Five Powers, she wove around the Asha'man something that seemed akin to the weave for detecting residues, a thing Romanda had small facility for.

The doors opened smoothly onto the 19th floor and artificially chilled air, in which he could detect tiny residues of charcoal used in the filtration process, swept across his face like a plastic cloud.

Sulzer has since restored the acid baths and added tests to detect residues.

Because of concerns about the presence of fluoroquinolones in the food supply, not only in aquaculture, but also in foods like honey, the U.S. is continuing to develop methods and strategies to detect illegal residues and prevent their introduction into the U.S. food supply.

According to several Federal officials and investigators, a preliminary examination of a fragment from the wreckage, with a sophisticated machine designed to detect residues of powerful explosives, yielded what was described by one officer as "a borderline positive reading."

Hog futures retreated on reports that Japanese inspectors had detected residues of sulfamethazine, a possibly carcinogenic feed additive, in shipments of pork from the United States, analysts said.

These procedures are given to Swab Test On Premises (STOP) to detect antibiotic residues in kidney tissues.

Scientists can now detect residues in amounts far lower than what is permitted.

It merely detects residues of drugs ingested as much as weeks in the past, when the worker may well have been off-duty or on holiday.