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Simultaneous Resolution of Clenbuterol Hydrochloride Enantiomers and Propranolol Hydrochloride Enantiomers using Thin-Layer Chromatography Jin-Gang Yu1, a, Du-Shu Huang2,b 1 College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P.
As we all know, β-CD and it’s derivatives have many hydroxyl groups, and the 3D structure of β-CD is like a cone which top end has been cut off.

Synthesis and Fluorescence Properties of New Europium (III) and Terbium (III) Complexes with N-(3-methoxyl–phenyl)ketoacetamide Xi-Shi Tai 1, a 1 College of Chemistry and Chemical Engineering, Weifang University, Weifang 261061, P.R.
Infrared spectra The IR spectra of the two complexes are similar in relative positions and intensities of the peaks, which suggest that the structure of the two complexes is also similar.

The interior cavities of CNTs can be utilized for encapsulating and loading foreign matters, which opens a pathway for the exploration of new chemistry and electrochemistry within a confined one-dimensional interspace [7].
The structure and surface morphology of the samples were characterized by TEM (JEM-1200, JEOL, Japan) and XRD (D8ADVANCE, Bruker, Germany).

These pits may lead to premature crack initiation, resulting in subsequent failure of high-strength Al6061-T651 alloy structures.
Optical microscope (Equipped with Image Analysis Software) and Scanning Electron Microscopy (SEM), equipped with Energy Dispersive X-ray spectrometry (EDS), were used to investigate the morphology and the chemistry of the 6061 alloy surface and constituent particles.

Introduction Titanium alloy has been considered as an important structure material for use in industrial applications.
Its prominent combination of properties makes it attractive for aeronautics, automobile, chemistry, marine, war industry, and so forth [1, 2].

Synthesis and Application of 1-(2,5-dimethyl-3-thiazolyl)-2-[2-methyl-5-(4-hydroxymethylphenyl)-3-thienyl]perfluoroyclopentene Yinglong Fu, Xue Li and Gang Liu* Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, P.
The structure of 1o was characterized by 1H NMR spectroscopy. 1H NMR spectra were recorded on Bruker AV400 (400 MHz) spectrometer with CDCl3 as the solvent and tetramethylsilane as an internal standard. 1H NMR (400 MHz, CDCl3, TMS): δ 1.99 (s, H, -OH), 2.05 (s, 3H,-CH3), 2.09 (s, 3H, -CH3), 2.69 (s, 3H, -CH3), 4.71 (d, 2H, J = 8.0 Hz, -CH2), 6.83 (s, 1H, thiophene-H), 7.35 (d, 2H, J = 8.0 Hz, benzene-H), 7.39 (d, 2H, J = 8.0 Hz, benzene-H).

China 2college of chemistry, Jilin University, Changchun 130012, P.R.
Scheme 1 The Structure of the oligomer Fig. 1 Rheology results of the resin Based on the results of the temperature ramp and results from thermal analysis (Fig. 1), isothermal rheology measurements were run at the following temperatures: 280OC, 290OC, 300OC, 310OC, 320OC and 330OC.

China b Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, 37 Xueyuan Road, Beijing 100083, P.
Schindler and Maier firstly synthesized such a membrane through the carbonization of a pre-existing polymer membrane with identical pore structure.

The Formation is a single inclined structure with 5-8 degrees, and the southwest is higher than the northeast.
Its physical chemistry characteristic decides its flooding mechanism[9]: (1) decrease interfacial tension and flow resistance, (2) decrease oil viscosity, make oil volume expansion, extract and carburate light hydrocarbon from crude oil, (3) pressure drop causes solution gas drive, and (4) enhance injective ability through acidization.

The Effects of Mineral Admixture on the Compressive Strength of Concrete Meili Zhao Department of chemistry and chemical Engnieering of Weifang University,Weifang,Shandong 261061, P.R.
It can improve the interface structure of the concrete and get better durability, corrosion resistance, long life, stable performance for concrete.[4] Experiment 2.1 Experimental materials 1.