BACKGROUND Sucralose has gained popularity as a low calorie artificial sweetener worldwide. Due to its high stability and persistence, sucralose has shown widespread occurrence in environmental waters, at concentrations that could reach up to several μg/L. Previous studies have used time consuming sample preparation methods (offline solid phase extraction/derivatization) or methods with rather ...

The Uranium (U) decay series provides the most important isotopes of elements Radium (Ra), Radon (Rn) and Polonium (Po) with half-lives of 1600 years, 3.8 days and 140 days, respectively. Although the chemical structure of radium is very similar to calcium, the fact that it produces a radioactive gas (Radon) complicates its handling in the laboratory and natural environment. The average concent...

1. The effect of silicon (Si) contained in drinking water and solid food on the intestinal absorption of aluminium (Al) remains a matter of debate. The present study was designed to readdress this issue in the experimental animal, and to examine concomitantly the effects of citrate and the fasting state, respectively. 2. Three groups of young, non-fasted rats (n = 8 per group) were gavaged by s...

abnormal fluoride levels in drinking water have been associated with adverse health effects. to determine the fluoride content of well waters in enugu, southeastern nigeria, water samples from 50 artisan wells chosen by multistage sampling procedure from the 5 zones of enugu municipality were analyzed in duplicates for their fluoride content. the zonal mean values were 0.60, 0.70, 0.62, 0.62, a...

AIMS We compared the applicability of catalysed reporter deposition fluorescence in situ hybridization (CARD-FISH) and FISH to enumerate prokaryotic populations in ultra-oligotrophic alpine groundwaters and bottled mineral water METHODS AND RESULTS Fluorescent oligonucleotide probes EUB338 and EUB338mix (EUB338/EUB338-II/EUB338-III) were used to enumerate bacteria and probes EURY806 and CREN5...

The utilization of a systemic fluoride method must be controlled in terms of risks and benefits. The reason for this is that while a small dose will not be effective in preventing dental caries, a larger dose may cause dental fluorosis. Therefore the knowledge of the fluoride concentration found in the bottled mineral waters sold throughout the Brazilian market the consumption of which has incr...

E xpanding population, limited access to freshwater, and continued growth in the manufacturing, pharmaceutical, and chemical industries increase the potential for exposure to a plethora of compounds through air, food, and water. Advances in analytical technology enable the scientific community to observe and quantify chemical contaminants in air and water at miniscule levels (parts per trillion...