Search Results - "Roach, A.G."

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  1. 1

    Chromatographic separation and identification of conjugated linoleic acid isomers by Roach, John A.G, Mossoba, Magdi M, Yurawecz, M.Peter, Kramer, John K.G

    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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    Book Review Journal Article
  2. 2

    Evaluation and single laboratory validation of an on-line turbulent flow extraction tandem mass spectrometry method for melamine in infant formula by Roach, John A.G., DiBussolo, Joe M., Krynitsky, Alex, Noonan, Gregory O.

    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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    Journal Article
  3. 3

    Cardiovascular effects of dopamine after central administration into conscious cats by Day, M.D, Roach, A.G

    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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    Journal Article
  4. 4

    Analysis of Coffee for the Presence of Acrylamide by LC-MS/MS by Andrzejewski, Denis, Roach, John A. G, Gay, Martha L, Musser, Steven M

    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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    Journal Article
  5. 5

    Rugged LC-MS/MS Survey Analysis for Acrylamide in Foods by Roach, John A. G, Andrzejewski, Denis, Gay, Martha L, Nortrup, David, Musser, Steven M

    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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    Journal Article
  6. 6

    Studies on RX 781094: a selective, potent and specific antagonist of α2‐adrenoceptors by Doxey, J.C., Roach, A.G., Smith, C.F.C.

    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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    Journal Article
  7. 7

    Silver-ion high-performance liquid chromatographic separation and identification of conjugated linoleic acid isomers by Sehat, N, Yurawecz, M.P, Roach, J.A.G, Mossoba, M.M, Kramer, J.K.G, Ku, Y

    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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    Journal Article
  8. 8

    Determination of Usnic Acid in Lichen Toxic to Elk by Liquid Chromatography with Ultraviolet and Tandem Mass Spectrometry Detection by Roach, John A. G, Musser, Steven M, Morehouse, Kim, Woo, Jason Y. J

    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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    Journal Article
  9. 9

    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 by Kramer, J.K.C, Sehat, N, Dugan, M.E.R, Mossoba, M.M, Yurawecz, M.P, Roach, J.A.G, Eulitz, K, Aalhus, J.L, Schafer, A.L, Ku, Y

    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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    Journal Article
  10. 10

    Quantitative determination of free and esterified cholesterol concentrations in cholesterol-fed rabbit aorta using near-infrared- Fourier transform-Raman spectroscopy by Le Cacheux, P., Ménard, G., Nguyen Quang, H., Dao, Nguyen Quy, Roach, A.G., Dron, D.

    “…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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    Journal Article
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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 by Eulitz, K, Yurawecz, M.P, Sehat, N, Fritsche, J, Roach, J.A.G, Mossoba, M.M, Kramer, J.K.G, Adlof, R.O, Ku, Y

    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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    Journal Article
  14. 14

    Improved separation of conjugated fatty acid methyl esters by silver ion-high-performance liquid chromatography by Sehat, N, Rickert, R, Mossoba, M.M, Kramer, J.K.G, Yurawecz, M.P, Roach, J.A.G, Adlof, R.O, Morehouse, K.M, Fritsche, J, Eulitz, K.D

    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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    Journal Article
  15. 15

    Synthesis, isolation, and GC analysis of all the 6,8- to 13,15-cis/trans conjugated linoleic acid isomers by Delmonte, P, Roach, J.A.G, Mossoba, M.M, Losi, G, Yurawecz, M.P

    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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    Journal Article
  16. 16

    A new conjugated linoleic acid isomer, 7 trans, 9 cis-octadecadienoic acid, in cow milk, cheese, beef and human milk and adipose tissue by Yurawecz, M.P. (U.S. Food and Drug Administration, Washington, DC.), Roach, J.A.G, Sehat, N, Mossoba, M.M, Kramer, J.K.G, Fritsche, J, Steinhart, H, Ku, Y

    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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    Journal Article
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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 by Delmonte, Pierluigi, Roach, John A. G., Mossoba, Magdi M., Morehouse, K. M., Lehmann, Lutz, Yurawecz, Martin P.

    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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    Journal Article
  19. 19

    α 2 ‐Adrenoceptor agonists induce mydriasis in the rat by an action within the central nervous system by Berridge, T.L., Gadie, B., Roach, A.G., Tulloch, I.F.

    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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    Journal Article
  20. 20

    Gas chromatography—High resolution selected‐ion mass spectrometric identification of trace 21∶0 and 20∶2 fatty acids eluting with conjugated linoleic acid isomers by Roach, John A. G., Yurawecz, Martin P., Kramer, John K. G., Mossoba, Magdi M., Eulitz, Klaus, Ku, Yuoh

    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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    Journal Article