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Analysis of Flavonoids in Acanthopanax by UV–Vis Spectrophotometry with Comparative Study on Different Extraction Technologies Ying Wang a, HongTao Chu b College of Chemistry and Chemical Engineering,Qiqihar University, Qiqihar 161006, People’s Republic of China aWangying2862@sina.com, blange1979@163.com Keywords: Acanthopanax Senticosus, Flavonoids, Microwave-Assisted Extraction Abstract.
Most of the flavonoids in Acanthopanax Senticosus have 3¢,4¢- dihydroxy-substituted structure.
This structure can show special color by reacting with the system of NaNO2–Al(NO3)3–NaOH.

Fig. 3(a) shows the micrograph of Ti-A1 shows long rice-shape like structure with high agglomeration of particles.
Meanwhile in Fig. 3(b) shows Ti-A2 has thin rice-shaped structure and the agglomerations of particles are still been observed.
A241 (1998), p. 38 [9] Xiaoyan Pan, Xueming Ma, Journal of Solid State Chemistry Vol. 177 (2004), p. 4098 [10] G.

The Effects of Calcium Fluoride Addition on Crystallization Characteristics of Hydroxyapatite-zirconia Composite Li-li Wang1, a, Xiu-feng Wang, Jian-feng Zhu and Cheng-long Yu 1Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science & Technology, Xi’an, Shaanxi, People’s Republic of China 710021 awanglili@sust.edu.cn Keywords: HA-ZrO2 Composite; Calcium Fluoride; Fluorapatite; Crystallization Characteristics Abstract.
Introduction Hydroxyapatite has gained much attention during the past decade in the applications of orthopedics and dentistry because of its similarity in chemical composition and crystallographic structure to human hard tissue [1-3].
Alternative methods to fabricate dense HA-ZrO2 composites should be introduced by changing the structure of HA, intrinsically.

The structure of the diversity and structure change of new performance, make its used in food packaging, not only can maintain good moisture, prevent oxygen into the package, but also can degradation, so reduce the pollution of the environment.
[8] Yingxin Zhang, Jiaying Xin, Linlin Chen: Journal of Natural Gas Chemistry, Vol. 17 (2008), pp. 103-109

The amorphous structure of the material was established by the X-ray method, using a Siemens Kristalloflex 4 instrument with CuKα radiation.
The statistical theory of adsorption [19] shows that the isotherms with 0<1/n<1 (in our case 0.66<1/n<1.03) are attributed to a heterogeneous structure of the adsorbent surface without any interaction between adsorbed atoms, molecules or ions. 0 5 10 -7 1 10 -6 1.5 10 -6 2 10 -6 2.5 10 -6 3 10 -6 3.5 10 -6 0 5 10 -5 0.0001 0.00015 0.0002 A, (pHe=2.1) A, (pHe=3.1) A, (pHe=6.2) A, mol/g SiO2 Ce, mol/L Fig. 3 Linear plots of the Freundlich adsorption isotherms for gallic acid on silica.
Weast (Ed.): CRC Handbook of Chemistry and Physics, 69 th edition (CRC Press, Boca Raton, 1988-1989), p.

Several reports demonstrated that CNTs have good adsorption capacities for different materials due to their hollow and layered nanosized structures that have a large specific surface area [8,9].
CNTs are already reported as good adsorbents for various materials due to its large specific surface area, and hollow and layered nanosized structure [9,11].
The authors would like to thank the Department of Chemistry, Faculty of Science, Srinakharinwirot University for the Atomic Absorption Spectroscope.

Adsorption of Methyl Violet Dye from Aqueous Solutions by Activated Carbon Produced from Tamarind Seeds Piaw Phatai1,a, Jutharatana Klinkaewnarong2, b and Surachai Yaiyen3,c 1Department of Chemistry, Faculty of Science, Udon Thani Rajabhat University, 41000 Thailand 2 Department of Physics, Faculty of Science, Udon Thani Rajabhat University, 41000 Thailand 3Faculty of Agro-industry, King Mongkut’s Institute of Technology Ladkrabang, 10520 Thailand apiawtee99@hotmail.com, bjutharatana@gmail.com, ckisurach@kmitl.ac.th Keywords: Activated carbon, Tamarind seeds, Methyl violet.
Introduction Dyes are synthetic chemical compounds having complex aromatic structures, which make them more stable and difficult to biodegradable.
Among others, activated carbon (AC) as an absorbent is still the best adsorbent of dye wastewater and has been widely used because of its high surface area and highly microporous structure [3].

Its microstructure consists of a solid solution γ matrix strengthened by nanoparticles of γ' (Ni3(Al,Ti), ordered face centred cubic L12 structure) and γ" (Ni3(Nb,Ti,Mo), ordered body centred tetragonal DO22 structure) phases.
Hutchison (Eds.), Nanocharacterization, Royal Society of Chemistry Publishing, Cambridge, 2007, pp. 184–267

STUDIES ON COPPER ION ADSORPTION USING PECTIN/FUNCTIONALIZED-SILICA COATED CELLULOSE Radchada Buntem1, a*,Thitiwat Tanyalax1,b 1Department of Chemistry, Faculty of Science, Silpakorn University, Nakorn Pathom, Thailand aradchadab@yahoo.com, bthitiwat2534@gmail.com Keywords: Pectin/functionalized silica adsorbent, pectin/silica-coated cellulose, copper ion adsorbent Abstract.
This is due to the complex between amino group of functionalized silica and copper ions as the proposed structure in Fig.4.
(a) (b) Fig.3 FT-IR spectra of functionalized silica (a) before and (b) after copper ion adsorption Fig. 4 The proposed structure of the Cu2+ complex in Cu2+-FILPSL2 Table 1 The functional group analysis of functionalized silica before and after copper ion adsorption Mode of Vibration Wave Number (cm-1) of Cu2+-free functionalized silica Cu2+-loaded amine-functionalized silica n(OH), n(NH) 3257 - 3606 (broad) 3200 - 3634 (broad) n(CH) 2945 , 2917 2982 , 2923 d(NH) 1637 1627 n(Si-O-Si) 859 - 1335 865-1337 (broad) n(≡Si-O) 956 948 n(O-Si-O) 788 796 3.2 The copper ion adsorption For copper ion adsorption, all factors including the concentration of copper ion, pH of the CuCl2 solution and cationic interferences were studied.

(3) Particle dynamic evolution is largely different when the combustion flame structure is different.
(4) Soot particles dynamics evolution of three nucleation models in different flame structures have discussed based on the method of moments, which is important for predicting the number and quality of soot particles.
Kinetic Modeling of Soot Formation with Detailed Chemistry and Physics: Laminar Premixed Flames of C2 Hydrocarbons[J].