High-performance liquid chromatography water

Succinic acid and fumaric acid concentrations were quantified using a high-performance liquid chromatography (Waters, Milford, MA) with an Aminex HPX-87H ion exclusion column (Bio-Rad, Hercules, CA) and a UV detector set at 210 and 260 nm, respectively. The mobile phase was 0.008 N H2S04 at a flow rate of 0.6 mL/min. The temperature of the column was maintained at 38°C. [Pg.845]

Scarlett, M., Fisher, J. A., Zhang, H., and Ronan, M., Determination of dissolved nonylphenol ethoxylate surfactants in waste waters by gas stripping and isocratic high performance liquid chromatography. Water Res., 28, 2109-2116, 1994. [Pg.1264]

The Determination of 6 Specific Polynuclear Aromatic Hydrocarbons in Waters [Using High-Performance Liquid Chromatography,Thin-layer Chromatography], 1985... [Pg.315]

Lab method with high performance liquid chromatography after collection in an impinger containing water Charcoal adsorption tube and gas chromatography... [Pg.360]

Commercial grades of PVP, K-15, K-30, K-90, and K-120 and the quaternized copolymer of vinylpyrrolidone and dimthylaminoethylmethacrylate (poly-VP/ DMAEMA) made by International Specialty Products (ISP) were used in this study. PEO standard calibration kits were purchased from Polymer Laboratories Ltd. (PL), American Polymer Standards Corporation (APSC), Polymer Standards Service (PSS), and Tosoh Corporation (TSK). In addition, two narrow NIST standards, 1923 and 1924, were used to evaluate commercial PEO standards. Deionized, filtered water, and high-performance liquid chromatography grade methanol purchased from Aldrich or Fischer Scientific were used in this study. Lithium nitrate (LiN03) from Aldrich was the salt added to the mobile phases to control for polyelectrolyte effects. [Pg.501]

Figure 5.3 Analysis of 100 ml of (a) surface water and (b) drinking water sample spiked with 0.1 pig/ml of microcystins, using column-switching HPLC 1, microcystin-RR 2, microcystin-YR 3, microcystin-LR. Reprinted from Journal of Chromatography A, 848, H. S. Lee et al, On-line trace enrichment for the simultaneous determination of microcystins in aqueous samples using high performance liquid chromatography with diode-array detection , pp 179-184, copyright 1999, with permission from Elsevier Science.

Clark GJ, Goodin RR, Smiley JW. 1985. Comparison of ultraviolet and reductive amperometric detection for determination of ethyl and methyl parathion in green vegetables and surface water using high-performance liquid chromatography. Anal Chem 57 2223-2228. [Pg.199]

Mantoura, R.F.C. and Llewellyn, C.A., The rapid determination of algal chlorophyll and carotenoid pigments and their breakdown products in natural waters by reversed-phase high-performance liquid chromatography, A a/. Chim. Acta, 151, 297, 1983. [Pg.445]

D2O = deutered water. HPLC = high performance liquid chromatography. IS = internal standard. MeOH = methanol. MS = mass spectrometry. NMR = nuclear magnetic resonance. PDA = photodiode array detector. TEA = triethylamine. MTBE = methyl tert-butyl ether. [Pg.461]

Perez-Urquiza, M., Prat, M.D., and Beltran, J.L., Determination of sulphonate dyes in water by ion-interaction high-performance liquid chromatography, J. Chromatogr. A, 871, 227, 2000. [Pg.546]

Analyses were performed by gel permeation chromatography (GPC) and by high performance liquid chromatography (HPLC). Gel filtration of oligosaccharides was effected in a thermostated (65 <>C) column (210 X 1.5 i.d.) filled with polycrylamide gel (Bio-gel P2, 200-400 mesh Bio Rad-USA), using stilled water as eluent (flow rate 30 ml.h-1). [Pg.551]

Lin C-H, RH Lerch, EM Thurmkan, HE Garrett, ME George (2002) Determination of isoxaflutole (Balance) and its metabolites in water using solid-phase extraction followed by high-performance liquid chromatography with ultraviolet or mass spectrometry. J Agric Eood Chem 50 5816-5824. [Pg.44]

Lipophilicity represents the affinity of a molecule or a moiety for a lipophilic environment. It is commonly measured by its distribution behavior in a biphasic system, either liquid-liquid (e.g. partition coefficient in 1-octanol-water) or solid-liquid (retention on reversed-phase high-performance liquid chromatography or thin-layer chromatography system). [Pg.35]

The octanol-water parhtion coefficient. Poet (often reported as log Poet), is a particularly useful parameter in quantitative structure-achvity relationships, apphed to predichon of properhes related to drug absorphon, distribution, metabohsm and excrehon [61, 62]. Although the traditional log Poet measurements have been done by the shake-flask method [63, 64], high-performance liquid chromatography-... [Pg.63]

Sangster, J. Octanol-Water Partition Coefficients Fundamentals and Physical Chemistry, Wiley, Chichester, 1997. n Valko, K. Application of high-performance liquid chromatography based measurements of lipophilicity to model biological distribution. J. Chromatogr. A 2004, 1037, 299-310. [Pg.350]

Distilled water, high-performance liquid chromatography grade... [Pg.470]

Bispyribac in water samples can be directly quantifled by high-performance liquid chromatography (HPLC) using an ultravilot (UV) detector without methylation. [Pg.474]

Chloroform, sodium chloride, anhydrous sodium sulfate, sulfuric acid (97%), hydrochloric acid (36%), sodium bicarbonate, trifluoroacetic acid, tris(hydro-xymethyl)aminomethane (Tris), special grade Water, high-performance liquid chromatography grade 0.1 M Phosphate buffer solution (pH 7.0)... [Pg.533]

Distilled water, high-performance liquid chromatography grade Acetone, ethyl acetate, diethyl ether, acetonitrile, n-hexane, benzene, pesticide residue analysis grade... [Pg.559]

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