title: Automatic spotting of pesticide extracts on thin-layer plates.
abstract: An apparatus has been devised to apply on a thin-layer sheet 9 samples of 1 or 2 ml of a solvent extract at a rate of 1 ml/20 to 30 min, thereby allowing the solvent to be evaporated by an airstream. Spots were 5 to 6 mm in diameter, and no attention of the analyst was required during spotting. The apparatus has been used to analyze for chlorinated hydrocarbons in soils.
authors.affiliation: Entomology Research Division, Agr. Res. Serv., USDA, Beltsville, Maryland.
authors.forename: M
authors.initials: M
authors.lastname: Beroza
authors.forename: M E
authors.initials: ME
authors.lastname: Getz
authors.forename: C W
authors.initials: CW
authors.lastname: Collier