Elmer相关论文
本文研究了Ⅰ_A、Ⅱ_A族基态原子、激发态原子、基态离子、激发态离子,以及激发态分子共31种分析型体的三维分布特点。研究所用全......
The sorption behavior and mechanism of a novel chelate resin, diglycolamidic acid resin (DAAR), for Sm(III) were investi......
Synthesis,Crystal Structure,UV-vis and EPR Studies of (NH_3CH_2CH_2NH_2)_(2.5)[Mo_(0.5)~(V)W_(0.5)~(
Cis-dioxo-metal complex (NH_3CH_2CH_2NH_2)_ 2.5 [Mo (V) _ 0.5 W (VI) _ 0.5 O_2-(OC_6H_4O)_2] 1 was obtained by ......
A highly efficient preparative procedure for ( R,S ) and ( S,S ) pyrrolidine 2 carboxylic acid 3,5 dioxa 4 ......
Thirteen triterpenoids, including three new ones, miyoshianols A (1), B (2) and C (3), were isolated from Huperzia miy......
Investigations on Preparation,Crystal Structure and Thermal Stability of Bis(O-ethylcarbonodithiolat
[Co(Et XA) 2·phen]·H 2O was prepared by adding 1,10 phen~anthroline to the EtOH solution of bis( O ethylcarbo~......
Synthesis,Structure and Biological Activities of S-[α-(4-Methoxyphenylcarbonyl)-2-(1,2,4-triazole-1-
The title compound was prepared by reaction of N,N -dimethyldithiocarbamate sodium with 1-bromo-1-(4-meth~oxy~phenylca......
(E)-α-Bromovinylselenides as Convenient Precursors for Stereoselective Synthesis of Trisubstituted A
Based on the different reactivity of selanyl and bromo groups,( E)-α- bromovinylselenides can undergo sequential cross ......
Methyl 9 ethylenedioxpyropheophorbide d was prepared from methyl pyropheophorbide a by protection of cyclic ketone wi......
Synthesis,Structure and Photoluminescence of Two Zinc Carboxylate Polymers with Different Coordinati
The hydrothermal reaction of ZnO with benzene 1,4 dicarboxylic acid gave Zn·BDC·2H 2O (1) and Zn·BDC·H 2O (2......
Cyclodextrin was pretreated by methylaluminoxane (MAO) and subsequently reacted with 8 aminoquinoline nickel dichloride......
A simple and effective pinacol coupling of various aromatic aldehydes mediated by gallium in good yields has been carrie......
Synthesis, Characterization of Heterodinuclear Co-Cu Complex and Its Electrocatalytic Activity towar
A new dinucleating ligand consisting of a tetraphenylporphyrin derivative covalently linked with tris(2-benzimidazylme......
Crystal Structure of Complex Tris(4,4,4-trifluoro-1-phenyl-1,3-butanedione)(1,10-phenanthroline) Eur
The complex Eu(btfa) 3(phen) (btfa=4,4,4 trifluoro 1 phenyl 1,3 butanedione, phen=1,10 phenanthroline) has been p......
Synthesis and Biological Activities of 4-Arylmethylidene-1-aryl-2-(selenomorpholin-4-yl)-2-imidazoli
In a search for novel agrochemical with high activity and low toxicity,a series of substituted 4,5 -dihydro-imidazol-5......
Synthesis and Crystal Structure of Two One-dimensional Chain Copper Complexes [Cu(TTA)_2(4,4′-azpy)]
Two copper complexes [Cu(TTA) 2(4,4′ azpy)] (1) and [Cu (TTA) 2(3,3′ azpy)] (2) (HTTA=1,1,1 trifluoro 3 (2 th......
Asymmetric synthesis of irnigaine was achieved starting from an enantiopure β amino ester 5 using the condensation......
One Dimensional Coordination Polymer Constructed by 1,2-Bis(4-pyridinecarboxamido)ethane and Copper(
The ligand [1,2 bis(4 pyridinecarboxamido)ethane] (L) and the coordination polymer {[Cu(L) 2(H 2O)]·(NO 3) 2·6 H......
A Novel Three-dimensional Framework with Tunnels Based on the Cobalt-containing Molybdenum Phosphate
A novel compound (H 2en) 5[CoMo 12 O 50 P 8(OH) 12 ]·2H 2O (1) (en =H 2NCH 2CH 2NH 2) has been h......
The one - dimensional chain self - assembled coordination polymer,[Cd(SCN) 2 (POM) 2 ] n (where POM ......
在美术学校学习，最大的收获之一就是不惧怕尝试使用各种美术材料，因为说不定什么时候你就会有意想不到的发现。大多数的模型爱好者买......
谷物中熏蒸剂残留量的测定,近年来采用气相色谱分析法,这方面已有许多报导。我们采用稀酸回流,以石油醚为萃取剂,用其有电子捕获......
据《R.W.》1980年Vol.183,No3报导,美国Perkin-Elmer公司出售2280型原子吸收分光光度计,以替换280型。这种新型仪器是一种用微型......
铌铁中铅的含量很低,部标规定Nb_1~#标准中铅含量应低于0.002％,Nb_2~#标准中铅的含量应低于0.005％。利用化学手段测定,处理步骤较长,......
铼酸钾为制取金属铼的重要原料,铼酸钾中杂质含量则直接影响高熔点金属铼的纯度。对铼酸钾中杂质分析国内外报导甚少,一般还需要......
Polycrystalline ZnO films were prepared on glass wafer using Zn targets by radio frequency(RF)reactive sputtering techni......
近二十年来随着计算机科学的发展,计算机储存检索和辅助解析光谱数据受到世界各国的重视,它已成为计算机信息处理的一个重要分支......
本文采用正常干灰化法处理粮食和茶叶样品,再用石墨炉原子吸收法测定其中镉和铅的含量,取得较满意的结果。仪器:Perkin一Elmer 70......
INTRODUCTION. On the basis of the ’Reactive Fragment Rypothesis’ proposed by Prof. Lu Jiaxi in 1981 for the active ce......
第十五届国际色谱报告会于1984年10月1日至5日在联邦德国Nurnterg(纽伦堡)举行。 我们应大会主席、联邦德国色谱协会主席E.Bayer......
本文应用Perkin-Elmer 577型红外分光光度计实验手段分析了B_4树脂吸附铀酰离子反应机理,初步得到如下结论:第一,B_4-1(2)和B_4-4(......
采用快速自动扫描等离子体光谱仪测定新型铜合金中铝、铁、钴、镍和硅,分析速度快,准确度较好。一、仪器及工作条件 PerKin-Elmer......
栎精(H_5Q·2H_2O)是一种应用较广的分析试剂,已用于Mo(Ⅵ)、V(Ⅴ)和W(Ⅵ)的测定。本文对V(Ⅴ)、Mo(Ⅵ)、W(Ⅵ)与栎精的配合物进......
ICP—AES分析在环境。地球化学样品的分析中占居重要地位。本方法采用Perkin—Elmer公司的快速自动扫描式ICP/6500型光谱仪,对地......
利用文献[1]方法制得Ho(NO_3)_3·nH_2O(n=6,5,3)(分别在48,60,98％的H_2SO_4气氛中干燥)淡黄色晶体。EDTA配合滴定其Ho_2O_3(％)含量......
美国地球物理贸易公司 GTS(Geophysical Trade Society)总裁 Phillip,L.Work 和执行副总裁 T.R.(Ted)Barker 及其下属子公司 Inte......
The Testing Centre was established in 1979 and ratified to be an Agricultural Testing Station of Shanghai Testing Centr......
The title complex, bis(4 nitrobenzaldehyde thiosemicarbazone) cadmium iodide (C 16H 16CdI 2N 8O 4S 2) crystallize......
PPV-based copolymers with cyano group in the main chain have been synthesized by Wittig-type polycondensation of alkoxy-......
Facile Synthesis of Amidines via Intermolecular Reductive Coupling of Nitriles with Azobenzene Promo
The intermolecular reductive coupling of nitriles with azobenzene induced by SmI2 was studied. Amidine derivatives were ......
Two copper complexes with a new multi sulfur 1,2 dithiolene ligand, C (C=tetrabutylammonium, n Bu4N+; tetraphenylphos......
