Báo cáo vật lý: "Immobilization of Dithizone onto Chitin Isolated from Prawn Seawater Shells (P merguensis) and its Preliminary Study for the Adsorption of Cd(II) Ion" pdf
... onto the surface of chitin, the intensity of
dithizone bands is considerably low as compared to those of chitin. The XRD
also suggests that immobilization of dithizone onto the surface of chitin ... depolymerization of chitin
biopolymer into its monomers.
Figure 2 gives the IR spectra of the reference and isolated chitin from
prawn se...
... for the purpose of modeling of the effect of land use change on
the runoff.
6
Land use, soil type, catchment size, and topographic structure were
used as the bases for regionalization of their ...
(1966–1991) for the purpose of calibration and eight (1994–1997) events for
validation of their research model. The comparative results of their instantaneo...
... determine how the major components of the amalgam
(Cu, Zn and Hg) diffuse into the structures of the teeth. Curson and Crocker
20
determined the concentrations of Zn and Pb in the pulp of the teeth. ... Elements in the Pulps of Healthy and Carious Teeth
The pulp contains the nerves and blood vessels of the teeth. The blood
vessels feed the...
...
that the ratio of the silica source to the surfactant ratio and the pH of the synthesis
gel can greatly influence the characteristics of the resulting materials as they
generally control the formation ... with increasing amounts of HCl or
the presence of large amounts of C1
–
ions. Therefore, for the partial dehydration
of PEO units, the volume of...
...
treatment. The reduction in surface area for Cu-AC can be explained by Cu
2
O
and CuO deposition onto the external surface and inner porous surface of the AC.
The presence of these oxides increases the ... portion of the H
2
O
2
is used to oxidise the AC,
there are fewer hydroxyl radicals available to oxidise the dye. Second, the
formation of a surface ox...
... by the cutting edge. In addition, the effects of other
milling parameters were studied; cutting speed (m/min), axial depth of cut (mm) and feed
rate (mm/tooth). Results indicate failure of the ... kali ganda berbanding dengan tidak menggunakan
Prestasi Mata Alat Karbida 78
4. Barbezat, G. (2005). Advanced thermal spray technology and coating for
lightweight engine block...
... cm
–1
indicates
the adsorbed water (H
2
O) in the pores of the solid. The shift of the band at ~ 660–
690 cm
–1
indicates the interaction between ZrO
2
and the Al-O of the metal oxide
pillar. ... confirmed by the
adsorption- desorption isotherm profiles and the pore distribution graphs in
Figures 3 and 4, respectively.
Although the relationship betwe...
... 1). F
these two molecules were used for the preparation of the deriva
(Schemes 2 and 3). The structures of the compounds were elucidate
NMR,
mass spectroscopy and elemental analysis. The IR ... ring of
activity of
ence of free
capacity on
ncrease and
at different
time intervals. The percentage inhibition of LDL oxidation for the standards like
BH...
... formation of AlN on the surface, which degrades the properties of the
epilayer [6].
2.2. Silicon Carbide (SiC)
The main advantage of this substrate is that its lattice parameter and the
thermal ...
where r is the reflectivity of the electric field from a single interface, and n
1
and
n
2
are the optical indices of the alternating
B
λ
/4 material l...
... in the range of 0.0%–8.0%
is also found.
1
The small quantity of the UFA is responsible for the relatively
high resistance of the oil to oxidation.
2
The UFA easily form peroxides in the ... or the addition of any foreign materials
before irradiation, thus the problem of reagent-introduced contaminants is
completely avoided. The procedure involved the lon...