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Centrifugal chromatography 离心色谱法
Pub Date : 1964-01-01 DOI: 10.1016/0009-5907(64)80004-1
Zdeněk Deyl, Jan Rosmus, Miroslav Pavlíček
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引用次数: 0
Chromatography of free nucleotides 游离核苷酸色谱法
Pub Date : 1964-01-01 DOI: 10.1016/0009-5907(64)80005-3
J.J. Saukkonen
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引用次数: 24
Gas chromatography in inorganic chemistry 无机化学中的气相色谱法
Pub Date : 1963-01-01 DOI: 10.1016/0009-5907(63)81014-5
J. Tadmor

The specific problems encountered in gas chromatography of inorganic compounds and the separations performed to date in the field are reviewed.

Some possibilities of further development of the gas chromatography technique in inorganic chemistry are indicated.

在无机化合物的气相色谱法中遇到的具体问题和迄今为止在该领域进行的分离进行了回顾。指出了气相色谱技术在无机化学中进一步发展的可能性。
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引用次数: 9
Paper chromatography and chemical structure 纸层析与化学结构
Pub Date : 1963-01-01 DOI: 10.1016/0009-5907(63)81011-X
J. Green, S. Marcinkiewicz

The chromatography of a series of phenylated p-cresols has been studied. It provides evidence that carbon-carbon hyperconjugation is of importance in determining the RM values of these compounds.

研究了一系列苯基化对甲酚的色谱法。这证明了碳-碳超共轭在确定这些化合物的RM值方面具有重要意义。
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引用次数: 1
A comprehensive bibliography of separations of organic substances by counter-current distribution 通过逆流分布分离有机物质的综合参考书目
Pub Date : 1963-01-01 DOI: 10.1016/0009-5907(63)81012-1
C.G. Casinovi
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引用次数: 1
Furnishing a laboratory for paper and thin-layer chromatography 为纸张和薄层色谱提供实验室
Pub Date : 1963-01-01 DOI: 10.1016/0009-5907(63)81003-0
E. von Arx, R. Neher
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引用次数: 1
Index 指数
Pub Date : 1963-01-01 DOI: 10.1016/0009-5907(63)81015-7
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引用次数: 0
Paper chromatography and chemical structure 纸层析与化学结构
Pub Date : 1963-01-01 DOI: 10.1016/0009-5907(63)81006-6
J. Green, S. Marcinkiewicz, D. McHale
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引用次数: 7
Paper chromatography and chemical structure 纸层析与化学结构
Pub Date : 1963-01-01 DOI: 10.1016/0009-5907(63)81007-8
S. Marcinkiewicz, J. Green

The constitutive effects of intramolecular hydrogen bonding on the chromatography of aromatic o-hydroxy-aldehydes and o-hydroxy-esters have been studied. It is shown that the degree of hydrogen bonding between the two ortho-groups as indicated by the shifts Δν(CO) in the infra-red spectra of the compounds can be quantitatively correlated with the values of ΔRM(CHO) or ΔRM(COOCH3) found by comparing the RM values of the compounds with those of the parent phenols. Both the chromatographic and infra-red effects can be related to the bond order of the double bond (in the parent hydrocarbon) bearing the two chelating groups. Intramolecular hydrogen bonding is an important factor affecting the precise theoretical calculation of RM. This study provides an example of how such a constitutive effect can be evaluated.

研究了分子内氢键对芳香邻羟基醛和邻羟基酯色谱的本构效应。结果表明,化合物红外光谱中位移Δν(CO)所表示的两个邻基之间的氢键度,可以与通过比较化合物与母体酚类化合物的RM值所得到的ΔRM(CHO)或ΔRM(COOCH3)值进行定量关联。色谱和红外效应都与(在母体烃中)含有两个螯合基团的双键的键序有关。分子内氢键是影响RM精确理论计算的重要因素。这项研究提供了一个如何评估这种本构效应的例子。
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引用次数: 3
Paper chromatography and chemical structure 纸层析与化学结构
Pub Date : 1963-01-01 DOI: 10.1016/0009-5907(63)81009-1
S. Marcinkiewicz, J. Green

A series of o-nitroso derivatives of phenols, alkoxyphenols, coumaranols and chromanols have been chromatographed. Two reversed phase and one direct phase system have been used. The correlation of the RM values of these compounds with their structure is at present impossible, being complicated by the combined occurrence of tautomerism and internal hydrogen bonding. Since these factors are interdependent and since they also depend on the nature of the solvents, the chromatography of o-nitrosophenols cannot be satisfactorily interpreted in terms of the electronic structure of the parent phenols or the relevant bond orders in the parent hydrocarbons.

对苯酚、烷氧酚、香豆醇和铬醇的一系列邻亚硝基衍生物进行了色谱分析。采用了两个反相系统和一个直相系统。这些化合物的RM值与其结构的相关性目前是不可能的,因为同时发生的互变异构和内部氢键使其变得复杂。由于这些因素是相互依赖的,而且它们也取决于溶剂的性质,所以邻亚硝基苯酚的色谱不能用母体酚的电子结构或母体烃的相关键序来令人满意地解释。
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引用次数: 0
期刊
Chromatographic reviews
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