Search Results - "Roach, A.G."
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Chromatographic separation and identification of conjugated linoleic acid isomers
Published in Analytica Chimica Acta (01-08-2002)“…There are 56 possible geometric and positional isomers of conjugated octadecadienoic acids (18:2), better known as conjugated linoleic acid (CLA). Positive…”
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Evaluation and single laboratory validation of an on-line turbulent flow extraction tandem mass spectrometry method for melamine in infant formula
Published in Journal of Chromatography A (15-07-2011)“…This report presents the single-laboratory validation of a method for the determination of melamine in dairy-based products using on-line turbulent flow…”
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Cardiovascular effects of dopamine after central administration into conscious cats
Published in British journal of pharmacology (01-12-1976)“…1 Dopamine (30 and 45 μg) administered intracerebroventricularly (i.c.v.) to a group of 10 conscious normotensive cats caused dose‐related increases in blood…”
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Analysis of Coffee for the Presence of Acrylamide by LC-MS/MS
Published in Journal of agricultural and food chemistry (07-04-2004)“…A variety of popular instant, ground, and brewed coffees were analyzed using a modified liquid chromatography−tandem mass spectrometry (LC-MS/MS) method…”
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Rugged LC-MS/MS Survey Analysis for Acrylamide in Foods
Published in Journal of agricultural and food chemistry (17-12-2003)“…The described liquid chromatography−tandem mass spectrometry (LC-MS/MS) method for the detection of acrylamide in food entails aqueous room temperature…”
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Studies on RX 781094: a selective, potent and specific antagonist of α2‐adrenoceptors
Published in British journal of pharmacology (01-03-1983)“…1 The selectivity and specificity of RX 781094 [2‐(2‐(1,4 benzodioxanyl))2‐imidazoline HCl] for α‐adrenoceptors have been examined in peripheral tissues. 2 In…”
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Silver-ion high-performance liquid chromatographic separation and identification of conjugated linoleic acid isomers
Published in Lipids (01-02-1998)“…This is the first report of the application of silverion impregnated high‐performance liquid chromatography (Ag+‐HPLC) to the separation of complex mixtures of…”
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Determination of Usnic Acid in Lichen Toxic to Elk by Liquid Chromatography with Ultraviolet and Tandem Mass Spectrometry Detection
Published in Journal of agricultural and food chemistry (05-04-2006)“…Usnic acid is unambiguously confirmed by tandem mass spectrometry (MS/MS) in tumbleweed shield lichen, Xanthoparmelia chlorochroa. The lichen contains 2% usnic…”
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Distributions of conjugated linoleic acid (CLA) isomers in tissue lipid classes of pigs fed a commercial CLA mixture determined by gas chromatography and silver ion-high-performance liquid chromatography
Published in Lipids (01-06-1998)“…Pigs were fed a commercial conjugated linoleic acid (CLA) mixture, prepared by alkali isomerization of sunflower oil, at 2% of the basal diet, from 61.5 to 106…”
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Quantitative determination of free and esterified cholesterol concentrations in cholesterol-fed rabbit aorta using near-infrared- Fourier transform-Raman spectroscopy
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (15-11-1996)“…Near-infrared-Fourier transform-Raman spectroscopy is a rapid and non-destructive technique that can provide reliable qualitative in situ information about the…”
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Identification of conjugated linoleic acid isomers in cheese by gas chromatography, silver ion high performance liquid chromatography and mass spectral reconstructed ion profiles. Comparison of chromatographic elution sequences
Published in Lipids (01-10-1998)“…Commercial cheese products were analyzed for their composition and content of conjugated linoleic acid (CLA) isomers. The total lipids were extracted from…”
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Analysis of CLA derivatives by GC/MS
Published in European journal of lipid science and technology (01-09-2001)Get full text
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Preparation, separation, and confirmation of the eight geometrical cis/trans conjugated linoleic acid isomers 8,10- through 11,13-18:2
Published in Lipids (01-08-1999)“…Conjugated linoleic acid (CLA) mixtures were isomerized with p‐toluenesulfinic acid or I2 catalyst. The resultant mixtures of the eight cis/trans geometric…”
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Improved separation of conjugated fatty acid methyl esters by silver ion-high-performance liquid chromatography
Published in Lipids (01-04-1999)“…Operating from one to six silver ion‐high‐performance liquid chromatography (Ag+‐HPLC) columns in series progressively improved the resolution of the methyl…”
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15
Synthesis, isolation, and GC analysis of all the 6,8- to 13,15-cis/trans conjugated linoleic acid isomers
Published in Lipids (01-02-2004)“…Octadecadienoic acids with conjugated double bonds are often referred to as conjugated linoleic acid, or CLA. CLA is of considerable interest because of…”
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A new conjugated linoleic acid isomer, 7 trans, 9 cis-octadecadienoic acid, in cow milk, cheese, beef and human milk and adipose tissue
Published in Lipids (01-08-1998)“…The identity of a previously unrecognized conjugated linoleic acid (CLA) isomer, 7 trans, 9 cis‐octadecadienoic acid (18∶2) was confirmed in milk, cheese,…”
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Synthesis and isolation of trans‐7, cis‐9 octadecadienoic acid and other CLA isomers by base conjugation of partially hydrogenated γ‐linolenic acid
Published in Lipids (01-05-2003)“…CLA is of considerable interest because of reported potentially beneficial effects in animal studies. CLA, while not yet unambiguously defined, is a mixture of…”
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19
α 2 ‐Adrenoceptor agonists induce mydriasis in the rat by an action within the central nervous system
Published in British journal of pharmacology (01-01-1983)“…The effects of intravenous administration of the selective α 2 ‐adrenoceptor agonists clonidine, UK 14,304 and guanoxabenz on rat pupil diameter were…”
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Gas chromatography—High resolution selected‐ion mass spectrometric identification of trace 21∶0 and 20∶2 fatty acids eluting with conjugated linoleic acid isomers
Published in Lipids (01-07-2000)“…High‐resolution selected‐ion recording (SIR) of the exact molecular ion mass was used to confirm unambiguously the presence of conjugated linoleic acid (CLA)…”
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