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American Journal of Analytical Chemistry 2014年第7期5卷 433-444页

作者： Yoshihiro Kudo Marina Ogihara Shoichi Katsuta Yasuyuki Takeda Graduate School of Science Chiba University Chiba Japan

Two extraction constants (Kex± and Kex) for extraction of silver picrate (Ag﹢Pic﹣) by benzo-15-crown-5 ether (B15C5) and benzo-18-crown-6 one (B18C6) into 1,2-dichloroethane (DCE) and dichloromethane (DCM) were determined at 298 K and given values of ionic strength. Here, Kex± and Kex were expressed as [AgL﹢]o[Pic﹣]o/[Ag﹢][L]o[Pic﹣] and [AgLPic]o/[Ag﹢][L]o[Pic﹣], respectively: L symbolizes B15C5 or B18C6 and the subscript “o” denotes the organic phase composed of DCE or DCM. Individual distribution constants (KD,Pic) of picrate ion, Pic﹣, into the two diluents were also determined with the determination of Kex. From comparison of these KD,Pic values with those standardized, interfacial potential differences () at extraction equilibria were evaluated. Then, using these values, relations of the experimentally-determined logKex± or logKex values with their electrochemically-standardized ones were precisely discussed. Consequently, it was indicated that logKex± should be expressed as a function of .

关键词： Individual Distribution Constants Interfacial Potential Differences Standardized Extraction Constants Silver Picrate benzo Crown Ethers Dihaloalkanes

CRYSTAL STRUCTURE OF benzo-15-CROWN-5-POTASSIUM TETRAIODOINDATE(Ⅲ)

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结构化学 1987年第3期 209-213页

作者： Zhou Zhixian Du Baoshi Zhang Xianxin Department of Chemistry, Zhengzhou University Liu Shixiong Huang Jinling Institute of Structuraj Chemistry, Fuzhou University

K(C14H2oO5)2InI4, Mr =1198.16, triclinic,P1,a=ll.839(3), b=12.993(4), c= 14.774(6)A,α=107.87(3),β=109.25(3),γ=95.08(2)°,V=1996.1A3, Z=2, Dc=***-3, MoKa radiation, =0.71073A, F(000)=1136e, R=0.049 for 4381 observable reflections. The structure consists of complex cation K(B15C5)2+ and complex anion InI4-. In the cation, potassium ion lies between two ether oxygen planes of two benzo-15-crown-5 molecules. In the an-ion, indium atom is tetrahedrally coordinated by four iodine atoms.

关键词： triclinic coordinated benzo crown iodine observable indium benzene anion potassium

CRYSTAL STRUCTURE OF 2-METHYL-4-（ρ-）METHYLPHENYL-2,3-DIHYDRO- benzo-（l,5）-DIAZEPINE(C17H18N2)

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结构化学 1985年第3期 195-198页

作者： Li Qi Jin Sheng Zhou Gongdu Department of Chemistry, Beijing Normal University Department of Chemistry, Beijing University Institute of Physical Chemistry, Beijing University

INTRODUCTION. The study of the title compound is a part of our systematic investigations on the 2,4-substituted derivatives of benzo- seven-membered heterocyclic system, in recent years. The comparison of conformation... 详细信息

关键词： METHYLPHENYL-2,3-DIHYDRO l,5 DIAZEPINE N2 benzo CRYSTAL STRUCTURE OF 2-METHYL-4

FLUOROMETRIC METHOD FOR RAPID DETECTION OF DNA DAMAGE IN HUMAN PERIPHERAL LEUKOCYTES INDUCED BY benzo(A)PYRENE

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癌变．畸变．突变 1991年第S1期3卷 255-255页

A preliminary study on application of Pluorometric Analysis ofDNA Unwinding（FADU）to the detection of DNA strand breaksinduced by indirect environmental mutagen benzo（a）pyrene（BaP）was *** results showed that BaP,activated by PCB-in-duced rat liver S9mixture,could result in obvious increase of DNAstrand breaks in human peripheral leukocytes incubated with

关键词： DNA RAPID A)PYRENE breaks strand preliminary pyrene benzo incubated minutes

RELATIONSHIP BETWEEN ACTIVITIES OF CYTOCHROME P-450 MONOOXYGENASES IN HUMAN PLACENTAL MICROSOMES AND BINDING OF benzo(A)PYRENE METABOLITES TO CALF THYMUS DNA.

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癌变．畸变．突变 1991年第S1期3卷 81-81页

作者： Ke Won Kang Department of Biological Science Korea Adavanced Institute of science and TechnologyTaejon 305-701Korea

benzo(a)pyrene metabolism in human placental microsomes fromsmokers was ***(a)pyrene metabolites were separatedusing high pressure liquid chromatographic technique. Reactionof benzo(a)pyrene with microsomal fraction o... 详细信息

关键词： pyrene placental cigarette benzo metabolism smoke DNA cytochrome dihydroxy insoluble

Analytical Determination of benzophenone-3 in Sunscreen Preparations Using Boron-Doped Diamond Electrodes

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American Journal of Analytical Chemistry 2011年第3期2卷 383-391页

作者： Michelli Thomaz Laranjeira Fabio de Lima Silvio Cesar de Oliveira Valdir Souza Ferreira Robson Tadeu Soares de Oliveira 不详

A new electroanalytical procedure was developed for the determination of benzophenone-3 (benzo) in commercial sunscreen as the active ingredient. The procedure is based on the use of electrochemical methods as cyclic and square-wave voltammetry, with boron-doped diamond (BDD) electrodes. The reduction of benzo in Britton-Robinson buffer (0.1 mol●L–1) using this type of electrode gives rise to one irreversible peak in –1.30 V (versus Ag/AgCl) in presence of cationic surfactant cetyltrimethylammonium bromide (CTABr). The proposed electrochemical method was successfully applied to the analysis of commercially available pharmaceutical preparations.

关键词： Boron-Doped Diamond benzophenone-3 benzo and Square-Wave Voltammetry

SYNTHESES OF 4′-ALKYLAMINOMETHYLbenzo-15-CROWN-5 AND POLYMER-SUPPORTED CROWN ETHER

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Chinese Science Bulletin 1981年第2期26卷 149-152页

作者：徐元耀金小立黄国华邬震中黄耀曾 Shanghai Institute of Organic Chemistry Academia Sinica Shanghai Institute of Organic Chemistry Academia Sinican 1967 Pedersen reported his pioneering work on crown ethers. Since then a large variety of macrocyclic compounds have been prepared and their complexation properties applications in organic reactions and analytical chemistry have been investigated extensively.

In 1967, Pedersen reported his pioneering work on crown ethers. Since then, a large variety of macrocyclic compounds have been prepared and their complexation properties, applications in organic reactions and analytic... 详细信息

关键词： pioneering crown SYNTHESES OF 4 benzo sizes remaining somewhat metha filtration disadvantages

STUDY OF SOME 2,4-DISUBSTITUTED-2,3-DIHYDRObenzo-( 1,5) THIAZEPINES AND THE STRUCTURES OF THEIR INTERMEDIATES

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Chinese Science Bulletin 1980年第1期25卷 41-43页

作者：金声邢其毅 Department of Chemistry Beijing University

In our previous paper the preparation of some tetrahydro-benzo (1,5) thiazepines was reported. Besides the physiological effect of this class of compounds, their stereochemistry, spectral properties and the reaction m... 详细信息

关键词： tetrahydro benzo physiological substituent starting pyridine aniline maxima definitely hydroxide

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RESPIRATORY SYSTEM

China Medical Abstracts(Internal Medicine) 2003年第1期20卷 26-29页

10.1 Respiratory failure2003068 Evaluation of non-invasive ventilation in a-cute respiratory failure with chronic obstructive pulmonary disease. GU Jianyong(顾俭勇), et al. Dept E-mergen, Zhongshan Hosp, Fudan Univ, Shanghai 200032. Shanghai J Med 2002; 25 (12): 741 - ***:To observe the effect of non-invasive venti-lation(NIV) in acute respiratory failure with

关键词： ventilation DNA malign repair inhibited pyrene Polymerase tetrazolium uptake benzo

ANTITRANSFORMING ACTIVITY OF CHLOROPHYLLIN AGAINST SELECTED CARCINOGENS AND COMPLEX MIXTURES

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癌变．畸变．突变 1991年第S1期3卷 209-209页

作者： WuZ.-L. J.-K.Chen T.-M.Ong W.-Z.Whong H.E.Brockman Institute for Chemical Carcinogenesis Guangzhou Medical College GuangzhouChina.Institute for Chemical Carcinogenesis Guangzhou Medical CollegeGuangzhouChina.Division of Respiratory Disease Studies National Institute for Occupational Safetv and Health.Morgantown.WV26505-2888 U.S.A.Division of Respiratory Disease Studies National Institute for Occupational Safetv and Health.Morgantown.WV26505-2888 U.S.A.Dept.of Biological Sciences Illinois State UniversityNormalIL 61761 U。S.A.

Chlorophyllin,the sodium and copper salt of chlo-rophyll,has been shown by several investigators tobe an antimutagenic *** a previous study wefound that it is a potent inhibitor of the mutagenicactivity of dietary and... 详细信息

关键词： potent dietary regarding benzo carcino tobacco mixtures aflatoxin inhibit untreated