Identification of Low-Boiling Sulfur Compounds in Agha Jari Crude Oil by Gas-Liquid Chromatography

1958 ◽  
Vol 30 (10) ◽  
pp. 1592-1594 ◽  
Author(s):  
H. J. Coleman ◽  
C. J. Thompson ◽  
C. C. Ward ◽  
H. T. Rall
Keyword(s):  
Liquid Chromatography ◽  
Crude Oil ◽  
Sulfur Compounds ◽  
Gas Liquid Chromatography

Preliminary Assessment of the Presence of Oil in the Ecosystem at Ekofisk After the Blowout, April 22–30, 1977

1978 ◽  
Vol 35 (5) ◽  
pp. 544-551 ◽  
Author(s):  
P. R. Mackie ◽  
R. Hardy ◽  
K. J. Whittle
Keyword(s):  
Liquid Chromatography ◽  
Crude Oil ◽  
Key Words ◽  
Water Column ◽  
Water Samples ◽  
Surface Film ◽  
Gas Liquid Chromatography ◽  
Preliminary Assessment ◽  
Oil Components ◽  
High Fluorescence

The marine environment in the Ekofisk area was assayed for the presence of oil components after the blowout on Platform Bravo was brought under control. Several methods of assay were used but the results were not always strictly comparable. Relatively high fluorescence values were observed in water samples in the vicinity of the platform. However, gas–liquid chromatography of these samples indicated that although some of the hydrocarbon fractions now resembled crude oil, none had increased markedly in concentration. The presence of oil could be detected in the biota and taste panels were able to identify an oily taint at low level in some fish caught near the platform. A second survey some 2 mo after the spill indicated that little, if any, oil from the blowout remained in the water column. Key words: Ekofisk, petroleum, surface film, water, sediment, fish

Determination of composition of solid hydrocarbons in crude oil by gas-liquid chromatography

1973 ◽  
Vol 9 (1) ◽  
pp. 72-75
Author(s):  
N. Ya. Rudakova ◽  
L. P. Kazakova ◽  
A. A. Gundyrev ◽  
V. A. Zakupra
Keyword(s):  
Liquid Chromatography ◽  
Crude Oil ◽  
Gas Liquid Chromatography ◽  
Solid Hydrocarbons

Identification of Thiaindans in Crude Oil by Gas-Liquid Chromatography, Desulfurization, and Spectral Techniques.

1966 ◽  
Vol 38 (11) ◽  
pp. 1562-1566 ◽  
Author(s):  
C. J. Thompson ◽  
H. J. Coleman ◽  
R. L. Hopkins ◽  
H. T. Rall
Keyword(s):  
Liquid Chromatography ◽  
Crude Oil ◽  
Gas Liquid Chromatography ◽  
Spectral Techniques

scholarly journals THE FATE AND EFFECTS OF DISPERSANT-TREATED COMPARED WITH UNTREATED CRUDE OIL, WITH PARTICULAR REFERENCE TO SHELTERED INTERTIDAL SEDIMENTS

1981 ◽  
Vol 1981 (1) ◽  
pp. 283-293 ◽  
Author(s):  
S. J. Rowland ◽  
P. J. C. Tibbetts ◽  
D. Little ◽  
J. M. Baker ◽  
T. P. Abbiss
Keyword(s):  
Liquid Chromatography ◽  
Crude Oil ◽  
Water Table ◽  
Field Experiments ◽  
Sediment Surface ◽  
Gas Liquid Chromatography ◽  
Sedimentary Environments ◽  
Hydrocarbon Analysis ◽  
Different Types ◽  
Spilled Oil

ABSTRACT Dispersant use is a factor that may partly determine the fate and effects of spilled oil. A series of quantitative field experiments has been initiated to simulate conditions following nearshore treatment of a floating oil slick or following the cleaning of a spill stranded on the shore. The basic experimental design is a series of treatments (Forties or Nigerian crude oil, BP 1100WD dispersant, or oil plus dispersant) applied to sets of experimental plots in a range of intertidal and subtidal communities. Biological recording includes frequency and density measurements of plants and animals, and hydrocarbon analysis is by capillary gas liquid chromatography and computerised gas chrornatography–mass spectrometry. Additionally, the effects of dispersant on the movement and fate of oil in different types of sediment is being investigated using a laboratory sediment column and controllable temperature seawater system. The columns have been successfully used in the modeling of low-energy sedimentary environments. Particular attention has been paid to the nature of water table fluctuations within the sediment, to grain size and sorting, to permeability, and also to the number of simulated “tides” that the columns experience after treatment. Hydrocarbon analysis is primarily by ultraviolet spectrophotometry, which has the advantage that the large number of samples generated by each experimental run can be quickly analysed. Gas liquid chromatography is used for checking selected samples. Preliminary results from the field and laboratory experiments indicate that some dispersant treatments increase penetration of oil, and that it may be retained below the sediment surface. Interacting factors include time of treatment in relation to tidal cycle and behaviour of the water table in the sediment.

A study of asphalt-aggregate interactions using inverse gas-liquid chromatography

1974 ◽  
Vol 24 (11) ◽  
pp. 645-654 ◽  
Author(s):  
F. Alan Barbour ◽  
Richard V. Barbour ◽  
J. Claine Peterson
Keyword(s):  
Liquid Chromatography ◽  
Gas Liquid Chromatography

GASCHROMATOGRAPHIC DETERMINATION OF STEROIDS IN THE URINE OF PATIENTS WITH CUSHING'S SYNDROME

1971 ◽  
Vol 67 (2) ◽  
pp. 303-315 ◽  
Author(s):  
A. J. Moolenaar ◽  
A. P. van Seters
Keyword(s):  
Liquid Chromatography ◽  
Cushing’S Syndrome ◽  
Normal Subjects ◽  
Diagnostic Value ◽  
Cushing's Syndrome ◽  
Gas Liquid Chromatography ◽  
Obese Subjects

ABSTRACT The 17-oxosteroids were estimated in the urine of 27 patients with Cushing's syndrome by gas-liquid chromatography (G. L. C.). The values of the various steroid fractions are compared with those of normal subjects, patients with thyrotoxicosis and obese subjects. The effect of the age of the patients on the diagnostic value of the invidual 17-oxosteroids and their ratios is discussed.

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