Iraqi National Journal Of Chemistry

A new mix ligand complexes were synthesized using the prepared Schiff base
(BM) as a primary ligand and 8-hydroxy quinoline(HQ.) as a secondary
ligand with metal ions [V(III), Cr(III), Fe(III), Rh(III) and Al(III)] .These
complexes were characterized by (FT-IR and Uv-Vis) Spectroscopies ,
(elemental analysis and flame atomic absorption) techniques as well as
(magnetic susceptibility and conductivity) measurements. showed that the
metal ions was coordinated with (BM) by nitrogen atom of azomethene
groups and oxygen atom of hydroxyl groups , in addition of coordination of
(HQ.) by oxygen atom of hydroxyl group and nitrogen atom of the quinoline
ring. The antibacterial activity for ligands (BM and HQ.) and mixed ligand
complexes
were studied against two
selected
micro-organisms
(Escherichia coil ) and (staphylococcus aureus).The antifungal activity
against two micro-organism (penicillumSpp and Aspergillusflavus) were
studied for ligands (BM and HQ.) and mixed ligand complexes . The results showed great enhancement of activity of the all complexes relative to that of
their respective ligands.

The current study established a method for preparation of
polyanilie-CNT coated platinum wire (SPME Fiber) and investigated
their capability to extract phenol from aqueous samples.
The Platinum wires were polished with a weighing Paper, then
rinsed with double- distilled water and cleaned in an ultrasonic bath
and finally electrochemically treated in 0.1 M sulfuric acid by
potential cycling between – 0.1and 1.5 V versus Ag/AgCl electrod
until a stable cyclic voltammogram was obtained. the Stability of
these type of polymers are being studied under different conditions
in order to find out whether they are capable of being used for
several
times. Apart from being easy and inexpensive,
electrochemical preparation of CNT-doped coatings of CNT- doped
coatings for SPME purposes is also quite flexible and the thickness
of the fibers can be controlled by the number of CV cycles.

A sensitive and selective solid phase extraction procedure for the determination of
traces of Cd(II) ion has been developed. An alumina-sodium dodecyl sulfate (SDS)
coated on with 3,3',3",3'"-tetraindolyl (terephthaloyl) dimethane (TTDM). The influences of
the analytical parameters including pH and sample volume were investigated. Common
coexisting ions did not interfere on the separation and determination of analytes under
study. The adsorbed analytes were desorbed by using 6mL of 4 mol L−1 nitric acid. The
responses are linear 0.01–0.90 for Cd2+ ion and detection limit for for Cd2+ ion were
found to be 1.1 (ng mL-1), respectively. The relative standard deviation of the method
was found to be less than 3.0%. The presented procedure was successfully applied for
determination of analytes in Colored Hair and Dryer Agents of Paint.

HACCP is a systematic method for the identification, assessment
and control of safety hazards. Such hazards are defined as
biological, chemical, or physical agents or operations that are
reasonably likely to cause illness or injury if not controlled. In the
manufacture of pharmaceuticals, these may include the manufacture of certain antibiotics, hormones, cytotoxic substances
or other highly active pharmaceuticals, together with operations
such as fluid-bed drying and granulation, which are examples of
hazard unit operations. HACCP plans are focused on hazards, the
overall objective being to ensure that pharmaceuticals are safe for
use.(1)
The use of inflammable solvents (solutions) and certain laboratory
operations may constitute hazards.The following elements of the
HACCP methodology are integral parts of the validation master
file:
— development of a flow diagram of the process;
— verification of the flow diagram on site.
In addition, HACCP will extend this concept to include an analysis
of the critical quality variables as well as the assessment of
hazards affecting the safety of
workers and environmental
pollution hazards directly related to the concerned.(2)