Results 71 to 80 of about 3,673,766 (300)

Chelate-modified polymers for atmospheric gas chromatography [PDF]

, 1980
Chromatographic materials were developed to serve as the stationary phase of columns used in the separation of atmospheric gases. These materials consist of a crosslinked porous polymer matrix, e.g., a divinylbenzene polymer, into which has been embedded
Christensen, W. W., Mayer, L. A., Woeller, F. H.   +2 more
core   +1 more source

Separations of lipids by silver ion chromatography

Journal of Lipid Research, 1966
The possibility of separating lipid materials on the basis of the number, type, and position of the unsaturated centers they contain, by virtue of the complexing of these unsaturated bonds with silver ions, provides a relatively recent but now very ...
L.J. Morris
doaj  

Competitive adsorption of plasma proteins at solid—liquid interfaces [PDF]

, 1986
The competitive adsorption of human serum albumin (HSA), human immuno-γ-globulin (HIgG) and human fibrinogen (HFb) onto polystyrene (PS) at 20° C and a pH of 7.35 (phosphate-buffered saline) was studied.
Breemhaar, W., Feijen, J., Lensen, H.G.W., Smolders, C.A.   +3 more
core   +3 more sources

GLC analysis of base composition of RNA and DNA hydrolysates [PDF]

Various methods used for the analysis of the base composition of RNA and DNA hydrolysates are presented. The methods discussed are: (1) ion-exchange chromatography, (2) paper chromatography, (3) paper electrophoresis, (4) thin layer chromatography, (5 ...
Gehreke, C. W., Lakings, D. B.
core   +1 more source

Determination of Creatinine in Human Urine with Flow Injection Tandem Mass Spectrometry [PDF]

, 2012
Background/Aims: Excretion of urinary compounds in spot urine is often estimated relative to creatinine. For the growing number of liquid chromatography-tandem mass spectrometry (LC-MS/MS) assays of urine-excreted molecules, a fast and accurate method ...
Koletzko, Berthold, Niesser, Mareile, Peissner, Wolfgang   +2 more
core   +1 more source

Simultaneous determination of natural and synthetic steroid estrogens and their conjugates in aqueous matrices by liquid chromatography / mass spectrometry [PDF]

, 2005
An analytical method for the simultaneous determination of nine free and conjugated steroid estrogens was developed with application to environmental aqueous matrices.
Bean KA, Belfroid AC, Berg FD, Bowers LD, Bowers Sanaullah LD, Choi BK, Croley TR, Desbrow C, Diaz-Cruz MS, Dray J, D’Ascenzo G, Fotsis T, Fotsis T, Gangl ET, Gentilli A, Gomes RL, Gomes RL, Gomes RL, Hogenboom AC, Huang C-H, Huang C-H, Isobe T, Ito S, Jason W. Birkett, John N. Lester, Kanda R, King R, Kuch HM, Liang HR, Mallet CR, Mark D. Scrimshaw, Mouatassim–Souali A, Rachel L. Gomes, Ranney RE, Rodgers–Gray TP, Snyder SA, Steen R, Steimer T, Tabak HH, Tang PW, Ternes TA, Ternes TA, Thomas KV, Zhang H   +43 more
core   +1 more source

Development of an analytical method to detect cyanide in Chinese liquor by ion chromatography with pulsed amperometric detection

Zhongguo shipin weisheng zazhi, 2020
Objective This study aimed to develop an ion chromatography-pulse amperometry (IC-PAD) technique for the identification and quantification of cyanide in Chinese liquor. Methods The real samples from local markets were diluted to 1∶10 with ultrapure water
Zifei WANG, Hongjian MIAO, Pengjie LUO, Tiehu SUN, Xiaowei ZHENG, Jie GUO   +5 more
doaj   +1 more source

Application of ion chromatography to the study of hydrolysis of some halogenated hydrocarbons at ambient temperatures [PDF]

The application of ion chromatography to the study of very slow rates of hydrolysis of some halogenated hydrocarbons was investigated. The halide concentrations in the aqueous phase of mixtures of a carbonate buffer (pH = 10.3) and either chloroform ...
Otterson, D. A.
core   +1 more source

Liquid Chromatography Electron Capture Dissociation Tandem Mass Spectrometry (LC-ECD-MS/MS) versus Liquid Chromatography Collision-induced Dissociation Tandem Mass Spectrometry (LC-CID-MS/MS) for the Identification of Proteins [PDF]

, 2007
Electron capture dissociation (ECD) offers many advantages over the more traditional fragmentation techniques for the analysis of peptides and proteins, although the question remains: How suitable is ECD for incorporation within proteomic strategies for ...
A. G. Marshall, A. Stensballe, D. M. Horn, E. C. Huang, E. C. Huang, E. Mirgorodskaya, F. W. McLafferty, H. J. Cooper, H. J. Cooper, H. J. Cooper, H. J. Cooper, H. J. Cooper, J. P. Chervet, J. R. Yates, K. Hakansson, K. R. Jennings, K. Vanhoutte, L. Ding, M. L. Nielsen, M. M. Savitski, M. M. Savitski, M. Mann, M. Palmblad, M. S. Wilm, M. Wilm, O. A. Silivra, P. Arpino, P. Roepstorff, R. A. Zubarev, R. A. Zubarev, R. A. Zubarev, R. L. Kelleher, S. D. H. Shi, S. H. Chiou, T. Baba, W. Davidson, Y. O. Tsybin, Z. Q. Guan, Z. Q. Guan   +38 more
core   +4 more sources

A Quantitative Method to Measure and Speciate Amines in Ambient Aerosol Samples

Atmosphere, 2020
Ambient reactive nitrogen is a mix of nitrogen-containing organic and inorganic compounds. These various compounds are found in both aerosol- and gas-phases with oxidized and reduced forms of nitrogen.
Amy P. Sullivan, Katherine B. Benedict, Christian M. Carrico, Manvendra K. Dubey, Bret A. Schichtel, Jeffrey L. Collett   +5 more
doaj   +1 more source