INVESTIGATION OF THE CONSTITUTION AND STRUCTURE OF JIAWANG VITRINITES BY MILD HYDROGENATION——Ⅳ. THE GAS-LIQUID CHROMATOGRAPHIC ANALYSES OF THE FRACTIONS<200℃ AND 200—320℃ FROM THE LIQUID CHROMATOGRAPHY
Ion Chromatography on Statically Coated Liquid Ion Exchanger Co-Iumn-Performance and Application of a Statically Coated Column with Quaternary Cetylpyridinium Salt
The materials which are liquid state at a room temperature or near the room temperature are named room-temperature ionic liquids (RTILs) or room temperature molten salts.
离子液体(英文为room temperature ionic liquids,简写为RTILs)是在室温或近于室温下呈液态的由离子构成的物质,又称室温熔融盐。
The materials which are liquid state at a room temperature or near the room temperature are named room-temperature ionic liquids (RTILs) or room temperature molten salts.
离子液体(英文为room temperature ionic liquids,简写为RTILs)是在室温或近于室温下呈液态的由离子构成的物质,又称室温熔融盐。
Room temperature ionic liquids (RTILs) are a class of organic salts that remain liquid at or near room temperature, usually composed of organic cations and organic or inorganic anions.
Ionic liquid is liquid materials totally formed by ions under the room temperature or the nearby temperature (-30~50 °C). It is also called room temperature ionic liquid or room temperature molten salts, etc.
Quantitative Structure-Retention Relationships Applied to Reversed-Phase High-Perfromance Liquid Chromatography
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A brief summary of the theoretical background of QSRR is followed by presentation of reversed-phase high performance liquid chromatographic (RP-HPLC) separation theories of applications to the reported QSRR.
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Two new trichothecenes, Roridin P and Isororidin P, and two known trichothecenes, Verrucarin A and Verrucarin J, were isolated from liquid cultures of Myrothecium roridum Tale ex Fr.
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A sensitive high-performance liquid chromatography (HPLC) method was established for the determination of concentration of 5-FU-1-acetic acid in the gastrointestinal contents and plasma of rats.
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This article demonstrates the use of a linear programming model to achieve an optimal allocation of liquid funds among various currencies in different countries.
A new method for the synthesis of polyene acids has been described.This consists of the condensation of crotonic ester or sorbic ester with suitable alde- hydes,followed by hydrolysis.Thus a C4 or C6 side chain with conjugated double bonds can be introduced in a single step.Condensation of methyl cro- tonate with benzaldehyde and with furfural in the presence of alcohol-free sodium methoxide gives,after hydrolysis,cis-δ-phenyl-△~(αγ)-pentadienoic acid(m.p.137.5- 138°)and cis δ-2-furan-△~(αγ)-pentadienoic ac...
The solubilities of potassium dichromate in mixtures of light and heavy water with various D_2O-contents hsve been measured at 25±0.03°. The solubility is expressed in two different ways: (1) S_n, the number of moles of K_2Cr_2O_7 dissolving in 55.51 moles of H_2O-D_2O mixture with the mole fraction of D_2O equal to n; (2) S_x, the number of grams of K_2Cr_2O_7 dissolving in 1 gram of H_2O-D_2O mixture with the weight fraction of D_2O equal to x (see Table 1, pp. 321-322). The data are plotted in Fig. 1 (p...
In this paper,the activity coefficient of aluminum in liquid iron with reference to pureliquid aluminum as the standard state is calculated from existing thermal and distribution datawith certain assumptions.First,the silver-lead equilibrium diagram is used to obtain the activitycoefficient of silver in liquid lead.Next,the data of Wright and of Lorentz and Erbe on the dis-tribution of silver between liquid lead and aluminum are combined with the foregoing toobtain the activity coefficient...