title: [Turbidimetric method for quantitative determination of triton X-100 with silicotungstic acid].
abstract: The Formation of Triton X-100-silicotungstic acid complex was studied. Quantitative turbidimetric determination of the detergent based on this process was suggested. This method allows to determining the complex formation at any wavelength in the range from 350 (epsilon 350 = 15,600 cm-1 M-1) to 600 nm (epsilon 600 = = 9090 cm-1 M-1). The calibration curve for Triton X-100 recorded at 350 nm is linear in the concentration range of 0 to 30 micrograms/ml. A sigmoid calibration curve was observed at longer wavelengths. A linear fragment of the calibration curve recorded at 600 nm was found at a concentration of Triton X-100 of about 5 micrograms/ml. The complex nature of calibration curves can be explained by heterogeneity of the complex dispersion.
authors.affiliation: Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, Leninskii Prospect 33, 119071 Russia.
authors.forename: L S
authors.initials: LS
authors.lastname: Lagutina
authors.forename: K F
authors.initials: KF
authors.lastname: Shol'ts
mesh_terms: D002138:Calibration; D003902:Detergents / Q000032:analysis*; D009391:Nephelometry and Turbidimetry / Q000379:methods*; D017830:Octoxynol / Q000032:analysis* / Q000737:chemistry; D017640:Silicates / Q000737:chemistry; D017973:Tungsten Compounds / Q000737:chemistry
chemical_list: D003902:Detergents; D017640:Silicates; D017973:Tungsten Compounds; D017830:Octoxynol; C021746:silicotungstic acid
vernacular_title: Turbidimetricheskiĭ metod kolichestvennogo opredeleniia tritona X-100 s kremnevol'framovoĭ kislotoĭ.