A simple and sensitive method for the simultaneous determination of methanol, ethanol, iso propyl alcohol(IPA), methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK), n-propyl alcohol (n-PA), ethyl acetate (EA), n-butanol, n-propyl acetate (n-PAc), toluene and ortho-xylene by headspace techniques with FID detection is described.
Abbreviations: Iso propyl alcohol (IPA), methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK), n-propyl alcohol (n-PA), ethyl acetate (EA), n-butanol, n-propyl acetate (n-PAc), ortho-xylene (xylene).
Risks for PNET increased in relation to IQR increases during pregnancy and first year of life for substances loading on factor 1, particularly to aromatic solvents [benzene, toluene, ethyl-benzene, and ortho-xylene
(collectively referred to as BTEX), and 1,3-butadiene] and the chlorinated solvents perchloroethylene and trichloroethylene, as well as to acetaldehyde and selenium.
In order to encourage new investment and capacity addition in the chemicals and petrochemicals sector, he proposed to reduce the BCD on reformate, ethane, propane, ethylene, propylene, butadiene and ortho-xylene
, methyl alcohol and denatured ethyl alcohol, and crude naphthalene.
More promising economically, however, are G'100 blends that include various types of xenols, including para-, meta- or ortho-xylene
. These materials are cheaper than mesitylene and traded on chemical commodity markets, thus they're more widely available.
The upgrade in the ratings takes into account the improvement in the financial performance during financial 2010 aided by a sustained recovery in the spread between Phthalic Anhydride (PAN) and Ortho-Xylene
(OX) from the fourth quarter of financial 2009 onwards.