An analytical method, based on separation with gas chromatography (GC) and detection with optical fiber (OF), was used for the separation, detection and quantification of benzene, toluene, ethylbenzene, p-xylene, m-xylene and o-xylene. The use of OF as a detector is based on the variations of the reflected optical power detected when the aromatic compounds eluted from the GC column are sorbed i...

Photoluminescence of |22|Paracyclophane and p-Xylene in the Presence of Silver Ions M. Zander Laboratory of Rütgerswerke AG, Castrop-Rauxel Z. Naturforsch. 39a, 10091010 (1984); received August 18. 1984 Phosphorescence spectra and phosphorescence lifetimes of [22]paracyclophane (I) and p-xylene have been mea­ sured in ethanol glass at 77 K in the presence of silver Perchlorate at various concen...

Rhodococcus sp. strain DK17 was isolated from soil and analyzed for the ability to grow on o-xylene as the sole carbon and energy source. Although DK17 cannot grow on m- and p-xylene, it is capable of growth on benzene, phenol, toluene, ethylbenzene, isopropylbenzene, and other alkylbenzene isomers. One UV-generated mutant strain, DK176, simultaneously lost the ability to grow on o-xylene, ethy...

Pseudomonas sp. strain T and Pseudomonas sp. strain K172 grow with toluene under denitrifying conditions. We demonstrated that anaerobic degradation of toluene was initiated by direct oxidation of the methyl group. Benzaldehyde and benzoate accumulated sequentially after toluene was added when cell suspensions were incubated at 5 degrees C. Strain T also grows anaerobically with m-xylene, and w...

Anisotropic dielectric relaxations in several binary nematic mixtures of MBBA and non-mesogenic compound oriented by magnetic field were measured in the frequency range of 300 Hz to 3 MHz. Viscosity measurements were also made in the isotropic state. Non-mesogenic compounds used were non-linear shaped molecules such as chloroform, m-xylene, and 1,3,5-trimethylbenzene, and nearly linear shaped m...

This paper mainly focuses on treatment process for Benzene, Toluene & Xylene (BTX) containing wastewater by using an alternating anoxic/micro aerobic sequencing batch reactor to overcome the stripping of BTX compounds into the atmosphere, as often occurs in conventional aerobic treatment processes. An ORP probe was successfully used to monitor different electron acceptor conditions in sequencin...

Boiling points have been determined at 101.33 kPa for the binary mixtures of sulfolane + o-xylene, sulfolane + m-xylene, sulfolane+p-xylene, sulfolane+ethylbenzene and sulfolane+1,2,4-trimethylbenzene. Calculations of the non-ideality of the vapor phase were made with the second virial coefficients evaluated from the Hayden–O’Connell method. The binary parameters for five activity coefficient m...