+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Indirect UV detection of short chain carboxylic acids in oil field water by high performance capillary zone electrophoresis

, : Indirect UV detection of short chain carboxylic acids in oil field water by high performance capillary zone electrophoresis. Se Pu 15(2): 173-175

Short chain carboxylic acids are the major aqueous organic species in oil field water. It is considered that they play an important role in the geochemical evolution of second porosity in oil reservoir. In this paper, short chain carboxylic acid anions were analyzed by HP(3D)CE high performance capillary electrophoresis system (Hewlett-Packard, Germany) with a buffer system of dinitrobenzoic acid-hexadecyltrimethyl ammonium bromide (CTAB). The influence of buffer pH and the concentrations of electrolyte, surfactant and methanol on the seperation of short chain carboxylic acids have been studied. The results showed that the best separation of short chain carboxylic acids could be done with the buffer of 10mmol/L dinitrobenzoic acid, 0.5mmol/L CTAB and 5% methanol at pH=9. Separations were performed in a 50cm x 50microm i.d. fused silica capillary (effective length 48.5cm) at 25 degrees C. A negative potential of 30kV was used for each experiment. Sample was introduced into the capillary by pressure at 50kPa for 10s. Indirect UV detection was operated at 254nm and reference wavelength at 380nm for all experiments. Negative peak was changed into positive one by exchanging between detection wavelength and reference wavelength. Capillary was rinsed for 10min with 0.1mol/L sodium hydroxide and buffer solution before each run. Oil field water was injected directly after filtered through 0.45microm membrane. The result was satisfactory.


PMID: 15739416

Other references

Sithiprasasna, R.; Linthicum, K.J.; Liu, G.J.n; Jones, J.W.; Singhasivanon, P., 2003: Use of GIS-based spatial modelling approach to characterize the spatial patterns of malaria mosquito vector breeding habitats in northwestern Thailand. We sampled 291 bodies of water for Anopheles larvae around three malaria-endemic villages of Ban Khun Huay, Ban Pa Dae, and Ban Tham Seau, Mae Sot district, Tak Province, Thailand during August 2001- December 2002 and collected 4,387 larvae from 1...

Lang, Fm, 1981: Planting engineered slopes Landscape management, California. Pacific horticultureer 1982 42(4): 3-8

Amakawa T.; Ozaki M., 1990: Regulation of excitation and adaptation of sugar taste receptor cell of the fly by cyclic nucleotide and calcium ion. Nishizuka, Y , M Endo And C Tanaka (Ed ) Advances in Second Messenger And Phosphoprotein Research, Vol 24 The Biology And Medicine Of Signal Transduction; 7th International Conference on Cyclic Nucleotides, Calcium And Protein Phosphorylation, Kobe, Japan, October 8-13, 1989 Xxxiii+750p Raven Press: New York, New York, Usa Illus 678

Espana, C.; Espana, E.M.; Gonzalez, D., 1959: Anaplasma marginale. I. Studies with phase contrast and electron microscopy. Examination of hemolyzed erythrocytes from cattle infected with Anaplasma marginale by phase contrast and electron microscopy has shown this parasite to be more complex than is generally believed. Ring, match, comet, and dumbbell-like forms have b...

Bradigan, P.S.; Mularski, C.A., 1992: Authorship outlets of academic health sciences librarians. Journal articles are the most common publication format for U.S. academic health sciences librarians. This is consistent with the findings of other researchers. Of the total publications in this study, 68% were in journals. Watson found that 69% o...

Pearson, C.H.O.; Cleasby, T.G.; Thompson, G.D., 1961: Attempts to confirm irrigation control factors based on meteorological data in the cane belt of South Africa. The relationship between the consumptive use of water by plant cane and the evaporation from a standard British evaporation tank was found to be greater than Penman's factor of 85%. The consumptive use for the whole plant crop was 109%, and f...

Groner, J.; Ahijevych, K.; Grossman, L.; Rich, L., 1999: Smoking behaviors of women whose children attend an urban pediatric primary care clinic. To characterize smoking behaviors of caregivers whose children attend a large urban pediatric primary care center. Descriptive survey. Women (n = 479) classified as smokers completed a questionnaire including demographics, smoking habits, measures...

Gregorini, L.; Marco, J.; Palombo, C.; Kozkov, M.; Bossi, I.M.; Marco, I.; Bernies, M.; Cassagneau, B.; Anguissola, G.B.; Romano, S.M.; Donatelli, F.; Fajadet, J., 1999: Coronary flow reserve changes induced by alpha1- and alpha2-adrenergic blockade. Circulation 100(18 SUPPL ): I 376-I 377, Nov 2

de Massougnes, S.; Borruat, F-X.; Ambresin, A., 2016: Peripheral Bilateral Telangiectasiae in Multiple Sclerosis Patients Treated with Interferon B1a. Klinische Monatsblatter für Augenheilkunde 233(4): 438-440

Bodamer, O.A.; Hussein, K.; Morris, A.A.; Langhans, C-D.; Rating, D.; Mayatepek, E.; Leonard, J.V., 2006: Glucose and leucine kinetics in idiopathic ketotic hypoglycaemia. Aims: To investigate glucose and leucine kinetics in association with metabolic and endocrine investigations in children with ketotic hypoglycaemia (KH) in order to elucidate the underlying pathophysiology. Methods: Prospective interventional stud...