title: [Test method of methanol content in detergent].
abstract: A test method of methanol content in detergent using a headspace-GC method was established. A 1 g aliquot of test sample was mixed with 0.4 mg of 2-propanol and made up to 20 mL with water. Then, 5 mL of test solution was placed in a headspace vial. The vial was sealed and incubated for 30 min at 60°C, then the headspace gas was analyzed by GC-FID. The recovery from spiked 1 mg/g of methanol was 95.6-100.6%. The determination limit was 0.1 mg/g. Using this method, the methanol content in 14 kinds of detergents was quantified. Methanol was detected from two detergents at the levels of 0.13 and 0.27 mg/g.
authors.affiliation: National Institute of Health Sciences, Tokyo, Japan. mutsuga@nihs.go.jp
authors.forename: Motoh
authors.initials: M
authors.lastname: Mutsuga
authors.forename: Chiye
authors.initials: C
authors.lastname: Tatebe
authors.forename: Yoshichika
authors.initials: Y
authors.lastname: Hirahara
authors.forename: Yoko
authors.initials: Y
authors.lastname: Kawamura
mesh_terms: D003902:Detergents / Q000032:analysis*; D005410:Flame Ionization; D000432:Methanol / Q000032:analysis*
chemical_list: D003902:Detergents; D000432:Methanol