In this search, the removal of copper and lead ions from aqeous solutions by flotation had
been studied, and the effect of various factors on the removal process.
The study showed that the removal of copper and lead ions was increased by increasing
the
value of the solution pH up to pH = 8 and the removal rate was 80%.
At pH = 10 precipitation of the ions was obtained in the form of hydroxides.
The removal ratio of both ions is increased by increasing the flow of the air within the
solution to reach 98% for copper and 97% for lead at the flow of Q = 1000 ml/min and
then the removal rate decreases to 60% with increasing airflow to Q = 1500 ml/min.
The initial concentration values affect the removal process and the increase in the removal
ratio was shown by increasing the initial concentration. The removal rate of copper ions
was 50 % at the initial concentration of C0 = 50 mg / l to 98% at C0 = 100 mg / l. While the
lead removal rate was 61 % at the initial Concentration C0 = 50 mg/l to 97% at
concentration C0 = 100 mg / l.
This paper discuss the Laser induced breakdown
spectroscopy (LIBS) by using Nd:YAG which is a high energy
pulsed Laser . The laser radiation is focused on solid targets which
are samples of red Copper (99.5%). Most important Plasma
parameters which are electron temperature and density was
measured.
The voltammetric behavior of captopril in presence of
copper ions was investigated by using adsorptive cathodic stripping
voltammetry at hanging mercury drop electrode.
A sensitive, simple and selective spectrofluorimetric method
has been proposed for determination Captopril (CPT) in pure form
and pharmaceutical preparations. This method depends on the
formation of complex between Captopril and Copper (II) at
pH=3.5.
The study addresses the synthesis of two organic phosphoric compounds that have
the P-NH-c bridge, They have the following chemical formula (PhO)2P(O)-NH-C(CH3)=CHCN
( abbreviated as PCNO) and The compound (abbreviated as PCNS) The compound
were s
ynthesized in the center of acetonitrile and having a strong base of sodium hydride
NaH by Diphenyl chloro phosphate (PhO)2POCl compounds and Diphenyl chloro thio
phosphate (PhO)2PSCl compound Respectively . Some of the physical and chemical
properties of the synthetic composites, such as the melting point, dissolution , and the
withdrawal of some important spectra such as the IR spectra and the NMR spectra were
used in the extraction of the copper(II) Ions from the of medium sulphates, Lesson of
Partition Coefficient Copper Dcu between aqueous medium of organic medium containing
different concentrations of organic phosphorus compounds prepared previously. Partition
Coefficient copper(II) ion distribution was studied in terms of the change in the value of
PH (PH = 4 --- 6) at the constant concentration of the extract used previously .The
Spectrophotometer for calculating copper concentrations was used Depending on absorption ,
and the two previous components were compared .
The experiment was carried out to study the ability of Cu and Zn
adsorption on natural Zeolite using six concentration of Cu and Zn
(50, 100, 150, 200, 250, 300) mg.L-1 and two different diameters
of Zeolite particles (0.5mm-1mm). The research aim
ed to define
the ability of Freundlich and Langmuir isotherms equations.
specifically coefficient R2 was used to determine the suitability of
these isotherms.
Copper chromite (CuCr2O4) was synthesized by a chemical coprecipitation
method. The synthesized samples were characterized
using X-ray powder diffraction technology (XRD). The
temperature of synthesis was 650°C.
This study aimed to determine the effect of antifungal drug (copper
Sulphate) on blood picture of broiler chickens Vaccinated with
Newcastle Disease Vaccine, We used the drug being tested by two
doses: (50, 100) ppm from the age of 7 till 45 Days.
We used /150/
chick were divided into three equal groups.
Phenol derivatives have been reacted with aryl halides under
heterogeneous basic catalyst (Amberlyst-21) using 5 mol% Cu(I)
Complex as catalyst, [CuClPPh3]4. The typical reaction has been
performed between p-cresol and bromobenzene. This reaction
is
achieved in o-xylene as solvent. However, the catalyst complex
does not dissolve in toluene rather it acts as heterogeneous catalyst.
Therefore, it is filtrated at the end of the reaction and reused several
times. Accordingly, new compounds were prepared by reacting one
of the bromoaryl derivatives with paracetamol. It is anticipated that
the synthesized compounds may have pharmaceutical application as
non-steroidial anti-inflammatory drugs (NSAIDs).
The concentrations of copper (Cu), zinc (Zn), nickel (Ni), lead (Pb),
cadmium (Cd) in dead and live honeybees were determined by using
atomic absorption spectrophotometry. The samples were collected from
beehives of stationary apiariessituated in
five different locations of
Latakia; Qardahah (Asitamo), Haffeh (Dabba), Jableh (Snouper),Latakia
city (Al-Ramel Al-Shamali\ Autostrade of Al-Jomhouria) and Eastern
Entryway to Latakia (behind Al-Jood factory) , during the spring and
autumn in 2014.
