Zobrazeno 1 - 10
of 41
pro vyhledávání: '"G E, Baiulescu"'
Stationary Phases in Gas Chromatography : International Series of Monographs in Analytical Chemistry
Stationary Phases in Gas Chromatography is a four-chapter book that begins with a description of chromatographic column, including its retention parameters; mobile and stationary phases; optimization of its process; and types of column in gas chromat
Autor:
G. E. Baiulescu, D. Seracu
Publikováno v:
Analytical Letters. 26:2349-2359
The paper presents for the first time in literature the use of color measurement in leaf diagnosis. It uses the data obtained in certain well- established conditions, in CIE 1976 system for quantifying the color changes of leaves in different suffere
Publikováno v:
Electrophoresis. 20(13)
A comparative study for the enantiomeric separation of terbutaline, clenbuterol, salbutamol and dobutamine was performed by capillary electrophoresis using cyclodextrins and their derivatives as chiral selectors. Several parameters such as buffer com
Autor:
G. E. Baiulescu, A. Pisoschi
Publikováno v:
Analytical Letters. 18:1027-1038
This paper describes the method for the concentration of Cu2+ by liquid-liquid extraction using Lix 64N solutions in kerosene, followed by back extraction chromatography. It consists of a pass of the organic phase through columns filled with cationic
Autor:
S. D. Popescu, G. E. Baiulescu
Publikováno v:
Analytical Letters. 19:587-596
The method proposed for determining codeine, dionin and thebaine by differential pulse polarography is based on the reduction (in ammoniacal medium) of the nitroderivatives obtained by dissolving the substances in concentrated nitric acid. The values
Publikováno v:
Analytical Letters. 16:289-299
Spark mass spectrometry was used as an analysis technique to ascertain the origin of paper samples or to uncover possible forgery. The relative content of the various components of the samples could be determined by optimizing the operational paramet
Publikováno v:
Talanta. 32:295-299
Two liquid-membrane electrodes, one sensitive to Cu(2+) and the other to Ag(+), were used for the determination of various sulpha-drugs with pK(a)or = 6 (as the sodium salts) by potentiometric titration with CuSO(4) and AgNO(3). The construction and
Pallatriazo ? A sensitive and selective reagent for the spectrometric determination of palladium(II)
Publikováno v:
Mikrochimica Acta. 83:169-173
Based on an investigation of the functional and active analytical groups, a new trisazo derivative, pallatriazo, is proposed as a reagent for determining Pd(II) spectrometrically. This reagent shows high sensitivity, allowing palladium determination
Publikováno v:
Analytical Letters. 16:601-612
Spectrometric studies on the complexation of Zr(IV) with five new pyrazolonic derivatives were carried out. The influence of ortho-substituted groups on the operational parameters of the spectrometric method of determining Zr(IV) was investigated. Th
Publikováno v:
International Journal of Environmental Analytical Chemistry. 2:203-211
The use of a p-aminophenylazoic dye, viz. 4-(4-aminophenylazo)-1-naphthylamine, is proposed as a spectrophotometric reagent for the determination of atmospheric sulfur dioxide absorbed in sodium tetrachloromercurate solutions. Determinations are made