Showing papers on "Brilliant green published in 1990"
TL;DR: Concerns are raised on the dependability of commercial diagnostic schemes that incorporate abbreviated (6 h) enrichment in TBG35 and/or SC35 in their analytical protocol for isolation of Salmonella from pre-enriched samples of naturally contaminated foods.
28 citations
TL;DR: In this paper, the extraction behavior of perrhenate with crown ethers was studied and methods for the separation and determination of rhenium were developed, and the molar ratios of crown ether to KReO4 in the extracted species are probably 1:1 for DC18C6, dibenzo-18-crown-6, 18-c Crown-6 and 18-C6.
15 citations
01 Dec 1990
TL;DR: The haploid strain 15B-II4 of Saccharomyces cerevisiae was used to study in an acute experiment the toxic and mutagenic effects of arylmethane dyes, and it was shown that the dyes could increase the frequency of appearance of nuclear point mutations and cytoplasmic mutations of respiratory deficiency.
Abstract: The haploid strain 15B-II4 of Saccharomyces cerevisiae was used to study in an acute experiment the toxic and mutagenic effects of arylmethane dyes Victory Blue (C.I. 44040), Methyl Violet (C.I. 42535), Brilliant Green (C.I. 42040) and cancerogenic aminoazo dye Chrysoidine (C.I. 11270). High biological activity of all the dyes tested was found, based on such toxic effects as cell killing and growth inhibition. Also, it was shown that the dyes could increase the frequency of appearance of nuclear point mutations and cytoplasmic mutations of respiratory deficiency.
3 citations
01 Jan 1990
TL;DR: In this article, a new kinetic spectrophotometric method is described for the determination of trace manganese(Ⅱ), based on its catalytic effect on the oxidation of Brilliant Green by KIO4.
Abstract: A new kinetic spectrophotometric method is described for the determination of trace manganese(Ⅱ), based on its catalytic effect on the oxidation of Brilliant Green by KIO4. Optimal experimental conditions have been established for the determination of Mn(Ⅱ).Beer's law is obeyed in the concentration range of 0.1ppb to 7ppb(λ= 460nm). The detection limit for Mn is 3.8×10-5μg/ml. The proposed methods is suitable for the direct determination of Mn in food products such as rice flour.
2 citations