Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Julio Medina-Escriche"'
Autor:
Juan C.Barberá Ubeda, Julio Medina Escriche, Francisco J.López Benet, Felix HernÁndez HernÁndez
Publikováno v:
Journal of AOAC INTERNATIONAL. 70:727-733
The efficacy of sulfuric acid cleanup and KOH-ethanol hydrolysis confirmation was studied for 22 organochlorine pesticides and 2 polychlorinated biphenyls (PCBs). Mean recoveries for different treatment times are given. The method was applied to anal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3acad43bc6a473337a06e05d8c8ec2fc
https://doi.org/10.1093/jaoac/70.4.727
https://doi.org/10.1093/jaoac/70.4.727
Publikováno v:
The Analyst. 109:457-459
The use of infrared spectroscopy is proposed for the determination of some average properties of nonylphenol-ethylene oxide condensates such as average relative molecular mass, average degree of condensation, the hydrophobic-lipophilic balance (HLB)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e17701cff6d1ee908c730f461de1ef0f
https://doi.org/10.1039/an9840900457
https://doi.org/10.1039/an9840900457
Publikováno v:
The Analyst. 108:1402
A spectrophotometric method of vanadium determination is described. It is based on the oxidation of Pyrogallol Red (PGR) and vanadium is determined by the decrease in absorbance of its characteristic band at 490 nm and at pH 4. This absorbance decrea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a953c55cb47e11b41b75dec27a38177
https://doi.org/10.1039/an9830801402
https://doi.org/10.1039/an9830801402
Publikováno v:
Scopus-Elsevier
The effects of surfactants on fluorescence analysis were studied. The addition of non-ionic surfactants (ethylene oxide - propylene oxide condensates) to a metal complex solution causes a remarkable enhancement of fluorescence, by which means the sen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae4e5cac0cde54b883d794edb9a32e77
https://doi.org/10.1039/an9830801386
https://doi.org/10.1039/an9830801386