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  1. Comparison of high performance liquid chromatography and enzymatic analysis of soluble carbohydrates in loblolly pine

    Foliar tissue was collected from a field study designed to test impacts of atmospheric pollutants on loblolIy pine (Pinus taeda L.) seedlings. Standard enzymatic (ENZ) and high performance liquid chromatography (HPLC) methods were used to analyze the tissue for soluble sugars. A comparison of the methods revealed no significant diffennces in accuracy...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Patricia L. Faulkner; Michele M. Schoeneberger; Kim H. Ludovici
    Year:
    1993
    Keywords:
    Source:
    Community Soil Scientist Plant Analysis, 24(1&2), 149-160(1993)

  2. Determination of Picloram in Soil and Water by Reversed-Phase Liquid Chromatography

    A reversed-phase liquid chromatographic method is presneted for the determination of picloram in the parts per billion (ppb) range in soil, soil solution, and stream samples. Quanitification is effected by UV absorpation at 254 nm. Derivatization is not necessary. The method permits 92% ± 7.1 recovery from water samples and 61.8% ± 11.1 recovery from soil samples....

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    M.J.M. Wells; J.L. Michael; D.G. Neary
    Year:
    1984
    Keywords:
    Source:
    Arch. Environ. Contam. Toxicol. 13. 234-235 (1984)

  3. Separation and quantification of monothiols and phytochelatins from a wide variety of cell cultures and tissues of trees and other plants using high performance liquid chromatography

    The HPLC method presented here for the quantification of metal-binding thiols is considerably shorter than most previously published methods. It is a sensitive and highly reproducible method that separates monobromobimane tagged monothiols (cysteine, glutathione, γ-glutamylcysteine) along with polythiols (PC2, PC3...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Rakesh Minocha; P. Thangavel; Om Parkash Dhankher; Stephanie Long
    Year:
    2008
    Keywords:
    algae, Arabidopsis, Crambe, forest trees, HPLC, mBBr, phytochelatins, sugar maple, red spruce, rice
    Source:
    Journal of Chromatography A. 1207: 72-83.

  4. Thermospray ionization liquid chromatography-mass spectrometry and chemical ionization gas chromatography- mass spectrometry of hexazinone metabolites in soil and vegetation extracts

    We have used thermospray LC-MS to confirm three highly polar metabolites (A, B. and G) of the herbicide hexazinone [3-cyclohexyl-6-(dimethylamino)-l-methyl-1,3,5-triazine-2,4(1H,3H)-dione]. and chemical ionization GC-MS to confirm two other metabolites (D and E) in extracts of soil and vegetation from a forest in the Central Alabama Piedmont. Selected-ion monitoring (...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Joseph B. Fischer; Jerry L. Michael
    Year:
    1995
    Keywords:
    Source:
    Journal of Chromatography A. 704: 131-139

  5. Simultaneous determination of UV-filters and estrogens in aquatic invertebrates by modified quick, easy, cheap, effective, rugged, and safe extraction and liquid chromatography tandem mass spectrometry

    tUltraviolet-filters (UV-filters) and estrogens have attracted increased attention as contaminants of emerging concern (CECs) due to their widespread occurrence in the environment. Most of these CECs are hydrophobic and have the potential to accumulate in aquatic organisms. To date, co-analysis of UV-filters and estrogens has not been reported due, in part, to the...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Ke He; Anne Timm; Lee Blaney
    Year:
    2017
    Keywords:
    QuEChERS, Reverse-solid-phase, extraction, Wrong-way-round ionization, UV-filters, Estrogens, Invertebrates
    Source:
    Journal of Chromatography A

  6. Simultaneous separation and quantitation of amino acids and polyamines of forest tree tissues and cell cultures within a single high-performance liquid chromatography run using dansyl derivatization

    The objective of the present study was to develop a rapid HPLC method for simultaneous separation and quantitation of dansylated amino acids and common polyamines in the same matrix for analyzing forest tree tissues and cell cultures. The major modifications incorporated into this method as compared to previously published HPLC methods for separation of only dansyl...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Rakesh Minocha; Stephanie Long
    Year:
    2004
    Keywords:
    Derivatization, LC, Amino acids, Dns derivatives, Polyamines, Amines, Putrescine, Spermidine, Spermine
    Source:
    Journal of Chromatography A. 1035: 63-73.

  7. A Gas-Liquid Chromatographic Examination of Stilbene Derivatives

    Trimethylsilyl ether derivatives of twenty hydroxystilbenes were separated by gas-liquid chromatography on Apiezon-L, OV-1, OV-17, and SE-54. Relative retention times were highly dependent upon the degree of hydroxylation and methoxylation, the positions of these groups and on cis-trans...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Richard W. Hemingway; W. E. Hillis; K Burerton
    Year:
    1970
    Keywords:
    Source:
    Journal of Chromatography 50(3):391-399

  8. Time- and cost-saving apparatus for analytical sample filtration

    Simple and cost-effective protocols were developed for removing particulates from samples prior to analysis by high performance liquid chromatography and gas chromatography. A filter and vial holder were developed for use with a 96-well filtration plate. The device saves preparation time and costs.

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    William R. Kenealy; Joseph C. Destree
    Year:
    2005
    Keywords:
    Analytical preparation, filtration
    Source:
    Research Note FPL-RN-0298. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 2 p.

  9. Kinetics on cocondensation between phenol and urea through formaldehyde I

    The kinetics of the reactions of methylolphenols and urea were investigated using 2- and 4-hydroxybenzyl alcohols. The high-performance liquid chromatography (HPLC) using a reverse-phase column gave a clear separation between methylolphenols and hydroxybenzylureas. The molar ratios of hydroxybenzylureas to the corresponding methylolphenols in reaction mixtures were...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Yasunori Yoshida; Bunchiro Tomita; Chung-Yun Hse
    Year:
    1995
    Keywords:
    Source:
    Mokuzai Gakkaishi 41(6):547-554

  10. Rapid analysis of abietanes in conifers

    Diterpene resin acids are major constituents of conifer oleoresin and play important roles in tree defense against insects and microbial pathogens. The tricyclic C-20 carboxylic acids are generally classified into two groups, the abietanes and the pimaranes. The abietanes have conjugated double bonds and exhibit characteristic UV spectra. Here, we report the analysis...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    P.J. Kersten; B.J. Kopper; K.F. Raffa; B.L. Illman
    Year:
    2006
    Keywords:
    Abietic, neoabietic, palustric, levopimaric, dehydroabietic, white spruce, diterpenes, HPLC, abietic acid, high performance liquid chromatography, oleoresins, carboxylic acids, dehydroabietic acid, neoabietic acid, palustric acid, pimaranes, abietanes, resin acids, levopimaric acid
    Source:
    Journal of chemical ecology. Vol. 32 (2006): pages 2679-2685.

  11. Formaldehyde condensation products of model phenols for conifer bark tannins

    Gel permeation chromatograpy of the condensation products of phenols and formaldehyde proved effective in understanding the reactions of condensed tannins with formaldehyde. Rates of condensation of phloroglucinols, resorcinols, catechols, (+)catechin, and (-)epicatechin were examined to determine if methylol-tannins from southern pine bark could be prepared as resin...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    R.W. Hemingway; G.W. McGraw
    Year:
    1978
    Keywords:
    Source:
    Journal of Liquid Chromatography 1(2):163-179

  12. Structure, organization, and transcriptional regulation of a family of copper radical oxidase genes in the lignin-degrading basidiomycete Phanerochaete chrysosporium

    The white rot basidiomycete Phanerochaete chrysosporium produces an array of nonspecific extracellular enzymes thought to be involved in lignin degradation, including lignin peroxidases, manganese peroxidases, and the H2O2-generating copper radical oxidase, glyoxal oxidase (GLX). Preliminary analysis of the P. chrysosporium draft genome had identified six sequences...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Amber Vanden Wymelenberg; Grzegorz Sabat; Michael Mozuch; Philip J. Kersten; Dan Cullen; Robert A. Blanchette
    Year:
    2006
    Keywords:
    Liquid chromatography, enzymes, mass spectrometry, peroxidases, Basidiomycetes, lignin, biodegradation, wood-decaying fungi, oxidases, copper, genetic transcription, Phanerochaete chrysosporium, white rot
    Source:
    Applied and environmental microbiology. Vol. 72, no. 7 (July 2006): p. 4871-4877.

  13. Accelerated cure of phenol-formaldehyde by the addition of cure accelerators : studies with model compounds

    Fast curing phenol-formaldehyde (PF) resins could potentially allow wood to be bonded at higher moisture contents and at lower press temperatures than those currently used commercially. Recent reports in the literature have shown that the addition of esters, lactones, or organic carbonates increased the curing rate of PF resins. Several mechanisms have been proposed to...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Linda F. Lorenz; Anthony C. Conner
    Year:
    2000
    Keywords:
    Accelerated curing, curing, phenol-formaldehyde, model compounds
    Source:
    Wood adhesives 2000 : June 22-23, 2000 ... South Lake Tahoe, Nevada. Madison, WI : Forest Products Society, 2000: Pages 391-395

  14. Formaldehyde condensation products of model phenols for conifer bark tannins

    Gel permeation chromatography of the condensation products of phenols and formaldehyde proved effective in understanding the reactions of condensed tannins with formaldehyde. Rates of condensation of phloroglucinols, resorcinols, catechols, (+)catechins, and (-)epicatechin were examined to determine if methylol-tannins from southern pine bark could be prepared as resin...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Richard W. Hemingway; Gerald W. McGraw
    Year:
    1978
    Keywords:
    Source:
    Journal of Liquid Chromatography, Vol. 1(2): 163-179

  15. Moisture sorption properties of composite boards from esterified aspen fiber

    One barrier to producing wood-plastic composites with wood fiber is the poor thermoplasticity of wood fiber. The objective of our study was to determine the plasticization of chemically modified wood fiber through tests on unmodified and esterified fiberboards. Attrition-milled aspen fiber was esterified with neat acetic, maleic, or succinic anhydride. Fourier...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    C. Clemons; R. A. Young; R. M. Rowell
    Year:
    1992
    Keywords:
    Esterification, acetic anhydride, aspen, composites, composite boards, fiber, acetic acid, chemical modification of wood, fiberboards, sorption, wood plastic composites, swelling, plasticization
    Source:
    Wood and fiber science. Vol. 24, no. 3 (July 1992): pages [353]-363.

  16. High-performance liquid chromatographic method for the determination of dansyl-polyamines

    This paper describes a fast reliable, and a sensitive technique for the separation and quantification of dansylated polyamines by high-performance liquid chromatography. Using a small 33 x 4.6 mm I.D., 3 ?m particle size, C18 reversed-phase cartridge column and a linear gradient of acetonitrile-heptanesulfonate (10 mM, pH 3.4...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Subhash C. Minocha; Rakesh Minocha; Cheryl A. Robie
    Year:
    1990
    Keywords:
    Source:
    Journal of Chromatography. 511: 177-183.

  17. Xylem monoterpenes of pines: distribution, variation, genetics, function

    The monoterpenes of about 16,000 xylem resin samples of pine (Pinus) speciesand hybrids—largely from the western United States—were analyzed in this long-term study of the resistance of pines to attack by bark beetles (Coleoptera:Scolytidae), with special emphasis on resistance to the western pine beetle(Dendroctonus brevicomis). The samples were analyzed by gas liquid...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Richard Smith
    Year:
    2000
    Keywords:
    Pinus species, pine grafts, bark beetles, western pine beetles, gas liquid chromatography, California.
    Source:
    Gen. Tech. Rep. PSW-GTR-177. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; 454 p.

  18. Transcriptome and secretome analyses of Phanerochaete chrysosporium reveal complex patterns of gene expression

    The wood decay basidiomycete Phanerochaete chrysosporium was grown under standard ligninolytic or cellulolytic conditions and subjected to whole-genome expression microarray analysis and liquid chromatography-tandem mass spectrometry of extracellular proteins. A total of 545 genes were flagged on the basis of significant changes in transcript accumulation and/or...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Amber J. Vanden Wymelenberg; Jill A. Gaskell; Michael D. Mozuch; Philip J. Kersten; Grzegorz Sabat; Diego Martinez; Daniel Cullen
    Year:
    2009
    Keywords:
    Liquid chromatography, cellulose, peptides, wood biodegradation, biodegradation, genomes, mass spectrometry, enzymes, biotechnology, lignocellulose, proteins, Basidiomycetes, molecular genetics, fungi, genetics, lignin, wood-decaying fungi, industrial applications, gene expression, manganese peroxidase, transcriptome, wood decay, secretome, Phanerochaete chrysosporium, white rot
    Source:
    Applied and environmental microbiology. Vol. 75, no. 12 (June 2009): pages 4058-4068.

  19. Antifungal metabolites of lactobacilli

    In recent years, public concern about indoor mold growth has increased dramatically in the United States. In this study, lactic acid bacteria, which are known to produce antimicrobial compounds important in the biopreservation of food, were evaluated to determine if the same antimicrobial properties can be used to protect wood from mold establishment. Based on biomass...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Vina A. Yang; Carol A. Clausen
    Year:
    2004
    Keywords:
    Lactobacilli, antifungal metabolites, mold, lactic acid bacteria, metabolites, antimicrobial compounds, growth inhibition, bacteria
    Source:
    Proceedings from the Woodframe Housing Durability and Disaster Issues Conference, October 4-6, 2004 ... Las Vegas, Nevada, USA. Madison, WI : Forest Products Society, [2004]: p. 307-311.

  20. Comparative transcriptome and secretome analysis of wood decay fungi Postia placenta and Phanerochaete chrysosporium

    Cellulose degradation by brown rot fungi, such as Postia placenta, is poorly understood relative to the phylogenetically related white rot basidiomycete, Phanerochaete chrysosporium. To elucidate the number, structure, and regulation of genes involved in lignocellulosic cell wall attack, secretome and transcriptome analyses were performed on both wood decay fungi...

    https://www.fs.usda.gov/treesearch/search?keywords=%22Liquid+chromatography%22

    Author(s):
    Amber J. Vanden Wymelenberg; Jill Gaskell; Michael Mozuch; Grzegorz Sabat; John Ralph; Oleksandr Skyba; Shawn D Mansfield; Robert A. Blanchette; Diego Martinez; Igor Grigoriev; Philip J Kersten; Daniel Cullen
    Year:
    2010
    Keywords:
    Liquid chromatography, cellulose, biodegradation, mass spectrometry, enzymes, biotechnology, lignocellulose, Basidiomycetes, molecular genetics, fungi genetics, fungi, lignin, biodegradation, wood-decaying fungi, industrial applications, gene expression, genetic transcription, Postia placenta, Phanerochaete chrysosporium, brown rot, aspen, glucose, iron, quinone, chemical reactions, Populus, transcriptome, wood decay, secretome, white rot, decay fungi, Fenton system
    Source:
    Applied and environmental microbiology. Vol. 76, no. 11 (June 2010): p. 3599-3610.

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