title: [Study on the direct determination of auxins by gas chromatography].
abstract: A method for the direct determination of auxins, indole acetic acid (IAA), indole-butyric acid (IBA) and naphthylacetic acid (NAA), by gas chromatography with wide-bore capillary column is described. The gas chromatographic conditions were as follows: HP-1 capillary column, 5 m x 0.53 mm i.d., 2.65 microns film, the column temperature 180 degrees C, the temperature of injector 250 degrees C, the temperature of FID detector 260 degrees C, carrier gas: N2 20 mL/min and dibutyl phthalate was used as internal standard. All components and internal standard were separated in 3 min. The relative standard deviations were from 0.61% to 1.14%. The method is simple, rapid, sensitive, good reproducible and satisfactory.
authors.affiliation: Center of Analysis and Test, Shanxi Teacher's University, Linfen 041004, China. dulim@dns.sxtu.edu.cn
authors.forename: L M
authors.initials: LM
authors.lastname: Du
authors.forename: Q Q
authors.initials: QQ
authors.lastname: Xu
mesh_terms: D002849:Chromatography, Gas; D007210:Indoleacetic Acids / Q000032:analysis*
chemical_list: D007210:Indoleacetic Acids