ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
  • Gas chromatography
  • Springer  (15)
  • Annual Reviews
  • 1980-1984  (15)
  • 1965-1969
  • 1980  (15)
Sammlung
Schlagwörter
Verlag/Herausgeber
Erscheinungszeitraum
  • 1980-1984  (15)
  • 1965-1969
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    Ultrastructural and gas-chromatographic analysis of the preputial glands of male nude (nu/nu) mice (1980)
    Springer
    Cell & tissue research 211 (1980), S. 73-82 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Preputial glands ; Nude mice ; Ultrastructure ; Gas chromatography
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The preputial glands of male nude (nu/nu) mice were analyzed by a combination of electron microscopy and gas chromatography to determine whether or not they are affected, like developing hairs and nails, by the nu/nu genotype. Results of the analyses revealed no differences between the glands of nude and normal male mice in either their ultrastructural characteristics or lipid secretory products.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00233724
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Possible amounts of oxygen in the carrier gas as compared to sample amounts (1980)
    Springer
    Chromatographia 13 (1980), S. 203-206 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; Carrier gas purity ; Sample stability
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary The amount of oxygen which may be present in the gas volume corresponding to a peak is investigated and compared to the sample amounts. It is shown that even with high purity carrier gases one may have a significant excess of oxygen present at low sample amounts. Attention is drawn to the possibility of impurity build-up by diffusion e.g. through the septum.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02261871
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Resolution of enantiomers and isotopic compositions by selective complexation gas chromatography on metal complexes (1980)
    Springer
    Chromatographia 13 (1980), S. 263-270 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; Metal complexes ; Enantiomers ; Isotopic composition
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary The high selectivity of complexation gas chromatography has been employed for enantiomer resolution and isotope separation. Thus, a chiral olefin, 3-methylcyclopentene, has been resolved analytically on optically active dicarbonyl-rhodium(I)-3-trifluoroacetyl-1R-camphorate in squalane. The deuterated ethylenes C2H4−nDn have been separated on the same rhodium(I)-containing stationary phase. The chiral aliphatic oxiranes epoxypropane andtrans-2,3-epoxybutane have been resolved on optically active nickel(II)-bis-3-trifluoroacetyl-1R-camphorate in squalane.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02265639
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    The selective abstraction of aliphatic aldehydes by gas chromatographic stationary phases containing N,N′-disubstituted-p-phenylenediamines (1980)
    Springer
    Chromatographia 13 (1980), S. 555-556 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; On-column abstraction ; Aliphatic aldehydes ; Amine antioxidants
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary The selective on-column abstraction of aliphatic aldehydes by gas chromatographic stationary phases containing N-iso-propyl N′-phenyl-p-phenylenediamine is described.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02311859
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    Gas chromatographic determination of impurities in nitromethane (1980)
    Springer
    Chromatographia 13 (1980), S. 35-39 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; Nitromethane ; Nitroalkanes
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary Impurities in commercially available nitromethane have been determined by gas-liquid chromatography using six different column packings. Besides nitromethane, 1-nitropropane, 2-nitropropane, acetonitrile, methanol, small amounts of ethanol and acetaldehyde have been detected. The presence of formaldehyde, ethyl acetate and acetone is probable. Mixtures containing comparable amounts of the four nitroalkanes could be separated on all columns, but plots of logarithms of the retention times vs. carbon number or boiling points of the nitroalkanes or column temperatures were linear only in case of columns packed with Porapak R and Q.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02302714
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    Gas chromatography on 10 um silica particles (1980)
    Springer
    Chromatographia 13 (1980), S. 686-692 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; Micropacked columns in GC ; Microparticles
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary Porous silica microparticles designed for modern liquid chromatography have proven effective in gas chromatography. Columns of 35–50 cm gave plate heights as low as 3.3 particle diameters and speeds of 2400 theoretical plates per second or 500 effective theoretical plates per second. Inlet pressures up to 70 atmospheres were required using hydrogen as carrier gas. The particles as received were too retentive for fast chromatography and gave asymmetric peaks. A coating of fluorosilicone oil overcame both problems. Other coatings were less effective. Bonded phases proved less satisfactory on both counts and also gave substantially less efficient columns and greater flow resistance. Column efficiency and flow resistance were sharply dependent on physical properties of the particles. The most efficient packing was clearly spherical particles of 5–10 μm diameter with narrow size distribution, pore diamters about 50 nm, BET surface areas of 25–50 m2/g and surfaces modified with trifluoropropyl silicone. A six-component hydrocarbon sample was separated in 33 s with a resolution of 4 for the most difficult pair and in 2.6 s with a minimal resolution. Performance was limited by end effects and by available pressure so that much better performance can be expected from longer columns and higher pressures.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02303438
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Separation behaviors of xylenol isomers by gas chromatography with helps of hydrogen bonding (1980)
    Springer
    Chromatographia 13 (1980), S. 752-754 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Xylenol isomers ; Gas chromatography ; Polyols and polyethers as stationary phase ; Hydrogen bonding
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary Xylenol isomers can be resolved on most polyols (sugars or sugar alcohols) and polyethers (polyethylene glycol or polypropylene glycol) with hydrogen-bonding interaction. They are separated on vinical polyols which have more hydroxy hydrogen than tetrol, and even on vicinal triol when its hydroxy hydrogen is acidic (stronger proton donor). The stronger is the hydrogen bonding interaction between xylenols and the liquid phase, the better is the separation of 2,4- and 2,5-xylenol, and the poorer the separation of 2,4-and 2,3-xylenol.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02265554
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Preparation of glass capillary columns (1980)
    Springer
    Chromatographia 13 (1980), S. 651-660 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Capillary columns, glass ; Gas chromatography ; Column preparation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary Glass capillary column chromatography is the most rapidly growing part of gas chromatography. There are many complex new analytical tasks and they require special capillary columns. Fortunately there is a wide range of column preparation methods available, and they make the preparation of glass capillary columns a more varied job than that of packed columns. In this paper these methods are reviewed and suggestions are given for making task-oriented columns.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02302470
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    Generalized equations to evaluate the gas hold-up time of chromatographic systems (1980)
    Springer
    Chromatographia 13 (1980), S. 73-84 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; Gas hold-up time ; Dead time
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary The two approaches used for the calculation of the gas hold-up time and thus, the adjusted retention time are outlined, first for the restricted case when the carbon numbers of the three homologues used for the calculation are evenly spaced (c3−c2=c2−c1) and then, for the general case when (c3−c2) differs from (c2−c1). The basic difference in the philosophy of the two approaches is shown.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02263058
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    Gas chromatography in qualitative analysis Part 16. An investigation of the oxidation of reference stationary phases used in column characterization by the Rohrschneider and McReynolds methods (1980)
    Springer
    Chromatographia 13 (1980), S. 177-182 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; Column characterization ; Oxidation ; Stationary phases
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary The on-column oxidation of hydrocarbons commonly used as stationary phases in column characterization is investigated. In each case significant shifts of retention are observed, which may be negative or positive depending upon the polarity of the test solutes and the adsorptivity of the support material. In order to reduce the consequent uncertainties in the Rohrschneider [1] and McReynolds [2] polarity values, a new method of column characterization is proposed. The applicability of the new method is illustrated by a consideration of a range of silicone liquid phases.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02259311
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 11
    Digitale Medien
    Digitale Medien
    Determination of hydrochloric acid in organic solutions by gas chromatography (1980)
    Springer
    Chromatographia 13 (1980), S. 207-208 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Trace determination ; Hydrogen chloride ; Ethylene oxide ; Gas chromatography ; Chlorinated solvents
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary A method is described for the determination of small quantities of hydrochloric acid in two chlorinated organic solvents (CHCl3 and CCl4). An excess of gaseous ethylene oxide is added to a liquid sample; the 2-chloroethanol formed is then analyzed by gas chromatography. The procedure is simpler and more sensitive in comparison with other conventional methods. It can be modified for other organic solvents.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02261872
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 12
    Digitale Medien
    Digitale Medien
    The signal of the helium detector — Its shape and polarity (1980)
    Springer
    Chromatographia 13 (1980), S. 567-571 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; Helium detector
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary Four main factors which determine the shape and the polarity of the helium detector signal are discussed. All possible responses of this detector, both in elution and in vacancy chromatography, are presented and special attention is drawn to the intermediate region. The idea of ionization vacancy is introduced for the specific case of two components which are unresolved by the column and to which the detector responds with different sensitivity.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02311861
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 13
    Digitale Medien
    Digitale Medien
    Nucleosides as stationary phases for the separation of xylenol isomers by gas-liquid chromatography (1980)
    Springer
    Chromatographia 13 (1980), S. 574-575 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Gas chromatography ; Xylenol isomers ; Sugar derivatives as liquid phases
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary Adenosine, guanosine and inosine used as liquid phases in gas chromatography permits the separation of all six xylenol isomers.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02311863
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 14
    Digitale Medien
    Digitale Medien
    Die Wahl der Trägergasgeschwindigkeit bei der Analyse von Mehrkomponenten-Gemischen (1980)
    Springer
    Chromatographia 13 (1980), S. 61-67 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Optimization ; Carrier gas velocity ; Gas chromatography ; Influence of temperature on optimum velocity
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Zusammenfassung Die Wahl der mittleren, linearen Trägergasgeschwindigkeit bei der Analyse von Mehrkomponentengemischen unter isothermen und temperaturprogrammierten Bedingungen wird diskutiert. Es wird gezeigt, daß stets eine Trägergasgeschwindigkeit gewählt werden sollte, die mindestens gleich, besser jedoch höher ist, als die optimale Gasgeschwindigkeit für den ersten Peak, gemessen bei der Starttemperatur (Temperaturprogramm) oder bei der eingestellten Ofentemperatur (isotherme Fahrweise).
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02302719
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 15
    Digitale Medien
    Digitale Medien
    Gas chromatographic determination of the configuration of isovaline in antiamoebin, samarosporin (emerimicin IV), stilbellin, suzukacillins and trichotoxins (1980)
    Springer
    Chromatographia 13 (1980), S. 209-214 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Configuration ; Chiral phases ; Gas chromatography ; Isovaline
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary The D-(resp. R) configuration of isovaline (=2-ethylalanine) was proved for the peptide antibiotics antiamoebin, Tü 165 (CBS 382.62), stilbellin, samarosporin (=emerimicin IV), suzukacillin B (A), trichotoxin A-40 and A-50. This contradicts the previously reported L-configuration for isovaline in antiamoebin and emerimicin IV. The configuration was determined by GC of the N-trifluoroacetyl-isovaline n-propyl ester on glass capillary columns coated with the chiral stationary phase N-propionyl-L-valine tert.-butylamide polysiloxane (Chirasil Val). The D-configuration of the isovaline from trichotoxin A-40 was also established independently using GC of N-pentafluoro-propionyl-isovaline (+)-3-methyl-2-butyl esters on glass capillary columns coated with OV 17.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02261873
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...