International comparison (CCQM-3) on the determination of organic compounds using isotope dilution mass spectrometry: (pp'-dichlorodiphenyl) dichloroethylene (pp'-DDE) in solution

Autor: V J Barwick, K S Webb, D Carter

Publikováno v: Metrologia. 36:89-99

A comparison (CCQM-3) of the concentration of the compound (pp'-dichlorodiphenyl) dichloroethylene (pp'-DDE) in 2,2,4-trimethyl pentane solvent by national laboratories using isotope dilution mass spectrometry has been completed. Two levels of sample

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e0008a581a0d0fdb057d07576fdde4d0
https://doi.org/10.1088/0026-1394/36/2/3

Identification of organic colourants in cosmetics by HPLC-diode array detection

Autor: S. C. Rastogi, V. J. Barwick, S. V. Carter

Publikováno v: Rastogi, S C, Barwick, V J & Carter, S V 1997, ' Identification of Organic Colourants in Cosmetics by HPLC-Diode Array Detection ' Chromatographia, vol. 45, pp. 215-228 .

A method for the analysis of organic cosmetic colourants was developed. The colourants extracted from the cosmetic products were analysed by HPLC followed by diode-array detection across the wavelength range 275 nm–760 nm. The chromatographic separ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::838dafdc12920c5e951a7492d14089a8
https://doi.org/10.1007/bf02505563