title: [Method-performance studies of notified analytical method for clofentezine].
abstract: Method-performance studies were conducted for the notified revised analytical method of clofentezine. Clofentezine spiked in azuki beans, apple, orange, banana, grape, tea powder and tea extract at the level of 0.2 microgram/g (2 micrograms/g for tea) was analyzed in replicate in 6 laboratories. Mean values of recovery from 7 crops ranged from 78.4 to 85.2%. Repeatability relative standard deviation values ranged from 2.2 to 4.6% and reproducibility standard deviation values ranged from 4.8 to 10.3%. The detection limits were 0.005-0.01 microgram/g. These results show the notified analytical method has good performance.
authors.affiliation: National Institute of Health Sciences: 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Sasaki
authors.forename: T
authors.initials: T
authors.lastname: Tatsuno
authors.forename: M
authors.initials: M
authors.lastname: Nakamura
authors.forename: T
authors.initials: T
authors.lastname: Imazawa
authors.forename: O
authors.initials: O
authors.lastname: Utsunomiya
authors.forename: Y
authors.initials: Y
authors.lastname: Kondo
authors.forename: H
authors.initials: H
authors.lastname: Osada
authors.forename: K
authors.initials: K
authors.lastname: Takahata
authors.forename: M
authors.initials: M
authors.lastname: Toyoda
mesh_terms: D002722:Chlorobenzenes / Q000032:analysis*; D007887:Fabaceae / Q000737:chemistry; D005638:Fruit / Q000737:chemistry; D007306:Insecticides / Q000032:analysis*; D027845:Malus / Q000737:chemistry; D028521:Musa / Q000737:chemistry; D015203:Reproducibility of Results; D013662:Tea / Q000737:chemistry; D027843:Vitis / Q000737:chemistry
chemical_list: D002722:Chlorobenzenes; D007306:Insecticides; D013662:Tea; C062106:clofentezine