نتایج جستجو برای: potassium dichromate
تعداد نتایج: 77815 فیلتر نتایج به سال:
BACKGROUND Patch testing is an essential procedure in the investigation of eczema in children. OBJECTIVES To analyse the frequency of contact hypersensitivity and allergic contact dermatitis among Polish children with eczema. PATIENTS/METHODS During an allergy screening programme involving 9320 children aged 7 and 16 years, 12.6% reported symptoms of chronic/recurrent eczema. From this grou...
Article history: Received on: 21/06/2016 Revised on: 12/07/2016 Accepted on: 28/07/2016 Available online: 30/08/2016 Even though whey protein complex derived from milk, is being touted as a functional food with a number of health benefits, so far its full mechanistic effect has not been deeply explicated, which is the target of this study. For this reason, we observed the 2 months protection in...
The present study was undertaken to determine the viability and infectivity of oocysts of Cryptosporidium baileyi that had been stored from 1 to 40 months at 4 degrees C preserved in 2.5% potassium dichromate solution. Oocysts of C. baileyi were purified from the feces of experimentally infected chickens using discontinuous sucrose gradients. Subsequently, the purified oocysts were suspended in...
BACKGROUND Spectacle contact allergy is not infrequent. The fine scratches on the spectacle frames which may play a role in the sensitization to the potential allergenic components have not been studied. OBJECTIVE We sought the relationship between the scratches on the spectacle frames and the allergic contact dermatitis (ACD) in the Republic of Korea. METHODS A total of 42 Korean patients ...
Two commercial samples of saffron were analysed for moisture and ash contents, solubility in water, action with sulphuric acid, presence of foreign dyes and colour intensity of water soluble solution.The moisture content in Laccha was 12.7% while it was 11% in Mogra. The ash was 4.7% in both the samples. The water soluble matter in Laccha was 52.7% and 45.8% in Mogra. There was no foreign dye i...
The induction of aneuploidy by physical and chemical agents using different test systems was evaluated. The effect of X-rays, caffeine, acetaldehyde, ethanol, diethylstilbestrol, propionaldehyde, and chloral hydrate was studied by chromosome counting in Chinese hamster embryonic diploid cells. Aneugenic ability of cadmium chloride, cadmium sulfate, potassium dichromate, chromium chloride, nicke...
BACKGROUND Contact allergy epidemics to chromate and nickel were addressed in Denmark in 1983 and 1990 by regulatory interventions. OBJECTIVES To evaluate whether regulatory interventions on nickel and chromate exposure have reduced the proportion of strong patch test reactions. METHODS 22 506 patients with dermatitis aged 4-99 years were patch tested with nickel sulfate, potassium dichroma...
This work describes the uncertainty calculation for determination of chromium oxide in leather. Following various steps which includes assembling a list sources uncertainty, with help basic formula used to calculate measure and as all parameters cause an influence on result because value associated it then effect diagram is made shows correlation between these indicates their result.All individ...
We describe a rapid method for calibrating the Technicon AutoAnalyzer colorimeter I. Test solutions of bromphenol blue are recommended for the calibration, in preference to solutions of potassium dichromate, based on considerations of the instrument's working range and of the stray light characteristics of the associated filters.
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