Zhimin Luo et al.
Small (Weinheim an der Bergstrasse, Germany), 12(43), 5920-5926 (2016-09-07)
A novel 3D cobalt sulfide (CoS) nanoparticle-decorated nitrogen and sulfur co-doped reduced graphene oxide aerogel (NSGA), referred to as CoS/NSGA, is prepared via three sequential processes, i.e., freeze-drying, annealing, and sulfidization. The obtained CoS/NSGA exhibits excellent electrocatalytic performance in the...
Maria José da Silva et al.
Analytica chimica acta, 629(1-2), 98-103 (2008-10-23)
Quantifying cocaine in apprehended samples is important to the Brazilian Federal Police because the concentration can indicate the origin of the drug and consequently the traffic route. In addition to the other risks of using this drug is the variability...
H Ghebeh et al.
Analytical biochemistry, 262(1), 39-44 (1998-09-15)
A colorimetric assay is described for the measurement of Pluronic F-68 in animal cell culture medium. The assay is based on the formation of a complex with cobalt thiocyanate as previously developed for the measurement of Pluronic in liver tissue....
J Lemli et al.
Pharmaceutisch weekblad. Scientific edition, 5(4), 142-144 (1983-08-26)
A rapid and simple colorimetric method is presented for the estimation of organic bases in pharmaceutical preparations. Solid cobalt thiocyanate reagent is used. Many bases form blue coloured ion pairs soluble in dichloromethane.
Encarnación Borrego et al.
Journal of AOAC International, 85(1), 173-181 (2002-03-07)
The mixed aggregate (MA) method was evaluated for the routine determination of total ethoxylated nonionic surfactants in municipal raw and treated sewage. Nonionics in wastewater samples were enriched with a C8 solid-phase extraction cartridge, eluted with ethyl acetate-methanol, and separated...