Fabrication of polymer nano spheres, nano fibers, and composites of polymer with diferent materials, when perormed using polymer solutions, require its homgenous dissolution [ 3,4 ].Chloroform was found to be a good solvent for some plastics, but since it is a volatile solvent
its proportion in the solution varied due to its evaporation, and hence affects the end product.
use (VSU), also referred to as glue sniffing, inhalant abuse, or solvent abuse, has been defined as "the deliberate inhalation of a gas or fumes given off from a substance at room temperature for its intoxicating effect" (National Drug Abuse Information Centre, 1988).
To our best knowledge, the study of more volatile solvent
such as THF as the cosolvent in the preparation of asymmetric PES membrane has not been widely reported.
Recent psychopharmacological research indicates that NO may have mechanisms of action that are distinct from those of volatile solvent
(VS) inhalants (e.g., toluene) and NO reportedly produces markedly more pleasant, psychedelic experiences (Beckman, Zacny & Walker 2006).
For a highly volatile solvent
such as chloroform, one expects to have very significant evaporation during the spin-off stage, which causes a rapid rise in solution viscosity, thus leading to [[t.sup.*].sub.a] [less than] [[t.sup.*].sub.p] and underpredictions for by.
Finneran's 96-Well Aluminum Micro Plate System is suited for use with volatile solvents
and testing that requires uniform heating and cooling of samples.
Since then, much effort has been made to improve and extend the theory for non-Newtonian fluids (3-10), and paints which contain volatile solvents
The evaporator series includes Dri-Pure, which eliminates the effects of solvent bumping; SampleGuard, which prevents heat damage to samples while ensuring rapid evaporation; and Auto-Defrost & Drain, which enables volatile solvents
to be collected and safely disposed.
Suited for routine dispensing of volatile solvents
and hazardous, corrosive or viscous chemicals, the system is easily calibrated by users to ensure validity of results in full compliance with GLP and GMP protocols.
With almost no evaporation, samples in volatile solvents
can be analyzed with the NanoPhotometer technology in very small volumes.
In this way volatile solvents
that boil off first and are collected in the condenser can simply be removed.
In addition, a high performance scroll pump enables the system to operate without any pumping fluid or lubricant, making it suited for use in harsh chemistry environments where corrosive or volatile solvents
are frequently used.