High performance liquid chromatography analyses

Frenkel, K., Zhong, Z., Wei, H., Karkoszka, J., Patel, U., Rashid, K., Georgescu, M. and Solomon, J.J. (1991). Quantitative high-performance liquid chromatography analysis of DNA oxidized in vitro and in vivo. Anal. Biochem. 196, 126-136. 

Gennaro, M. C., Bertolo, P. L., and Marengo, E., Determination of aromatic amines at trace levels by ion interaction reagent reversed-phase high-performance liquid chromatography. Analysis of hair dyes and other water-soluble... 

Herraiz, T., Sample preparation and reversed phase-high performance liquid chromatography analysis of food-derived peptides, Analytica Chimica Acta, 352, 119, 1997. 

Mangani, F., Luck, G., Fraudeau, C., Verette, E. (1997). Online column-switching high-performance liquid chromatography analysis of cardiovascular drugs in serum with automated sample clean-up and zone-cutting technique to perform chiral separation. J. Chromatogr. A 762, 235-241. 

Lee [73] studied the stability of miconazole on dry heating in vegetable oils. Miconazole was stable when subjected to dry heat (160 °C for 90 min) in either peanut or castor oil as determined by high performance liquid chromatography analysis. Thus, ophthalmic preparations of miconazole can be prepared in peanut or castor oil with dry heat sterilization without the loss of the drug due to degradation. The procedure also facilitates quick and easy dissolution of the drug in the oil base. 

Baker et al. [138] studied the excretion of metabolites in bile following the administration of primaquine in rats. Six metabolites of primaquine were found in the bile of rats. Quantitative high performance liquid chromatography analysis of the metabolites revealed that the sum of the six metabolites excreted in the bile represented quantitative recovery of the dose of primaquine. 

Ni et al. [143] investigated the profile of the major metabolites of primaquine produced by in vitro liver microsomal metabolism, with silica gel thin-layer and high performance liquid chromatography analysis. Results indicated that the liver microsomal metabolism could simultaneously produce both 5-hydroxyprimaquine (quinoline ring oxidation product) and carboxyprimaquine (side-chain oxidative deamination product). However, the quantitative comparative study of microsomal metabolism showed that the production of 5-hydroxyprimaquine was far much higher than that of carboxyprimaquine. 

LeGatt D. 1988. High performance liquid chromatography analysis. Neuromethods 10. Analysis of Psychiatric Drugs. Boulton AA, Baker GB, Coutts RT, editors. Clifton, NJ Humana Press pp. 155-202. 

Stewart AJ, Mullen W, Crozier A. On-line high-performance liquid chromatography analysis of the antioxidant activity of phenolic compounds in green and black tea. Molecular Nutrition Food Research. 2005 49(1) 52-60. 

Xiaohua, X., Liang, Z., Xia, L., and Shengxiang, J., Ionic liquids as additives in high performance liquid chromatography. Analysis of amines and the interaction mechanism of ionic liquids, Anal. Chim. Acta, 519,207-211,2004. 

Table 4.5.6 Running conditions for high-performance liquid chromatography analysis of 2-aminobenzamide-labelled oligosaccharides...

However, in a more recent paper, Caboni et al. described that the aforementioned method was not applicable for all types of food products (32). Hence, only 30% and 53% of the PL of a total lipid extract of cheese and dried egg powder, respectively, were recovered. High-performance liquid chromatography analysis revealed that the acidic phospholipids PG and PI were not... 

JA Singleton, LF Stikeleather. High performance liquid chromatography analysis of peanut phospholipids. I. Injection system for simultaneous concentration and separation of phospholipids. J Am Oil Chem Soc 72 481-483, 1995. 

Reversed-Phase High-Performance Liquid Chromatography Analysis of... 

C.J. Ward, K.A. Beattie, E.Y.C. Lee and G.A. Codd, Colorimetric protein phosphatase inhibition assay of laboratory strains and natural blooms of cyanobacteria comparisons with high-performance liquid chromatography analysis for microcystins, FEMS Microbiol. Lett., 153 (1997) 465-473. 

High performance liquid chromatography—analysis of semivolatile and nonvolatile chemicals or analytes that decompose upon heating ... 

Surfactin in the supernatant was confirmed and the concentration determined by high-performance liquid chromatography analysis as described by Noah et al. (4). Surface tension was measured using video image analysis of inverted pendant drops as previously described (5). All data points are an average of five measurements taken of the cell-free supernatant. 

Fig. 4.14 High performance liquid chromatography analysis of fresh water coolant. Experimental conditions samples were made...

Ehlers, D., Kirchhoff, J., Gerard, D. and Quirin, K.W. (1 998) High performance liquid chromatography analysis of nutmeg and mace oils produced by supercritical C02 extraction - comparison with steam distilled oils, comparison of East Indian, West Indian and Papuan oils. International Journal of Food Science and Technology 33(3), 215-223. 

The HPLC (High Performance Liquid Chromatography) analysis of enzymatic bath was performed using a chromatographic column Cl8 DABS (Beckman, USA) modified to amino acid analysis. 

Improved Resolution in High Performance Liquid Chromatography Analysis of Polynuclear Aromatic Hydrocarbons Using Ternary Solvent Systems... 

Zavitsanos, P., and Goetz, H. (1991). The practical application of diode array UV-visible detectors to high-performance liquid chromatography analysis of peptides and proteins. In High-Performance Liquid Chromatography of Peptides and Proteins Separation, Analysis,... 

Metelev, V., and Agrawal, S. (1992). Ion-exchange high-performance liquid chromatography analysis of oligodeoxyribonucleotide phosphorothioates. Anal. Biochem. 200, 342-346. 

FIGURE 6-19. High performance liquid chromatography analysis of components of interest after solid-phase cleanup. 

FIGURE 6-22. High performance liquid chromatography, analysis of fraction 1. This chromatogram shows the analysis of the same urine sample after an SPE cleanup. This fraction demonstrates the removal of the interferences while the cortisone remains on the cartridge. 

FIGURE 6-23. High performance liquid chromatography analysis of fraction 2. This chromatogram shows that cortisone is eluted quantitatively from the SPE cartridge with 2 mL of 100% methanol. Now conditions can be optimized for a faster HPLC analysis. 

Lue, B.M., Guo, Z., and Xu, X. High-performance liquid chromatography analysis methods developed for quantifying enzymatic esterification of flavonoids in ionic liquids. J. Chromatogr. A. 2008, 1198, 107-114. 

B. Herbreteau, Review and state of sugar analysis by high performance liquid chromatography, Analysis 20 (1992), 355-374. 

After 20 seconds exposure of a natamycin solution, in a Suntest CPS test chamber, high performance liquid chromatography analysis shows that at least seven degradation products of the drug substance are produced (Fig. 6). 

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