A number of studies have been done on furan
and 2-methyltetrahydrofuran (MTHF) which are potential biomass fuels.
The goal was to be making furan
bonded chromite/silica molds with reclamation by April 2014, while continuing full production.
(X = H, F, Cl and Br) complexes than that in isolated furan
Scientists led by Javier Santos, a professor at the Department of Analytical Chemistry at the University of Barcelona said in the journal <em>Food Chemistry</em> that higher concentrations of furans
are found in espresso (43a[euro]146 nanograms per mililitre) than in coffee made in drip coffee makers, with normal coffee getting higher readings (20a[euro]78 ng/ml) than decaffeinated coffee (14a[euro]65 ng/ml).
Our study was limited, for it focused on only two select congeners out of the 75 dioxin and 135 furans
that exist, and only looked at the sum of 17 dioxin/furan
congeners to evaluate total TEQs.
The formation of furan
was correlated with the pH, sugar content, titratable acidity and ascorbic acid content of the produce.
After processing, samples for dioxin and furan
analysis were submitted to the analytical laboratory on July 19, 2004.
According to analytical data posted on FDA's web site and presented as exploratory data, furan
may be present in a wide variety of foods at extremely low levels ranging from a few parts per billion (ppb) to approximately 100 ppb.
Some animal data suggests that high levels of furan
exposure might have a carcinogenic effect in humans, but its true effects in humans, especially at such very low levels, are not known, the FDA said.
Previous studies have determined that RGS detection limits in sediment are 8 pg/g for dioxin, 63 pg/g for furan
The work (2-5) mainly consists of polymerization of bisfuran or furan
resin with bismaleimide derivative.
s list of toxic polluters; the agency found significant quantities of lead, cadmium, chromium, arsenic, dioxin and furan
contamination in its cement dust.