High performance liquid chromatography continued

SUMNER, L., PATVA, N.L., DIXON, R.A., GENO, P.W., High-performance liquid chromatography/continuous-flow liquid secondary ion mass spectrometry of flavonoid glucosides in leguminous plant extracts, J. Mass Spectrom., 1996,31,472-485. 

Table 1.10.1 Determination of Organic Analytes by High Performance Liquid Chromatography (Continued)... 

Van Breemen, R.B, Canjura, F.L., and Schwartz, S.J., High-performance liquid chromatography-continuous-flow fast atom bombardment mass spectrometry of chlorophyll derivatives, J. Chromatogr., 542, 373, 1991. 

Hjerten, S Liao, JL Zhang, R, High-Performance Liquid Chromatography on Continuous Polymer Beds, Journal of Chromatography 473, 273, 1989. 

Svec, F Frechet, JMJ, Continuous Rods of Macroporous Polymer as High-Performance Liquid Chromatography Separation Media, Analytical Chemistry 64, 820, 1992. 

Thannhauser, T. W., McWherter, C. A., and Scheraga, H. A., Peptide mapping of bovine pancreatic ribonuclease A by reverse-phase high-performance liquid chromatography. II. A two-dimensional technique for determination of disulfide pairings using a continuous-flow disulfide detection system, Anal. Biochem., 149, 322, 1985. 

J. Chao, J. Liu, M. Wen, J. Liu, G. Cai and G. Jiang, Determination of sulfonylurea hericides by continuous-flow hquid membrane extraction on-line coupled with high-performance liquid chromatography. J. ChromatogrA 955 (2002) 183-189. 

Nitrobenzene oxidation was carried out by adding 50 mg of dry soda lignin into a mixture of 7 mL of 2 M NaOH and 4 ttiL of nitrobenzene in a 15 ttiL steel autoclave. Then, the antoclave was heated to 165°C for 3 hours in a preheated thermostat oil bath. After the autoclave was cooled to room temperature, the mixture was then transferred to a liqnid-hquid extractor for continuous extraction with chloroform (5 x 20 mL) in order to remove any nitrobenzene reduction product and excess nitrobenzene. The oxidation mixtnre was then acidified by concentrated HCl to pH 3 and further extracted with chloroform (5x15 mL). The solvent from the second chloroform solution was then removed using a rotary evaporator at 40°C under reduced pressure in order to obtain the nitrobenzene oxidation mixture. The mixture was then dissolved into dicloromethane and made up to 10 luL. This mixture was then used as a stock solution for high performance liquid chromatography (HPLC) analysis [6]. 

Hjerten, S., Liao, J. L., and Zhang, R. (1989). High performance liquid chromatography on continuous polymer beds. /. Chromatogr. 473, 211>-T79. 

Svec, R, and Frechet, J. M. J. (1992). Continuous rods of macroporous polymer as high performance liquid chromatography separation media. Anal. Chem. 64, 820-822. 

Fields, S. M. (1996). Silica xerogel as continuous column support for high performance liquid chromatography. Anal. Chem. 68, 2709-2712. 

Niessen, H. Irth On-line coupling of high-performance liquid chromatography to a continuous-flow enzyme assay based on electrospray ionization mass spectrometry. Anal Chem 2004, 76, 3155-3161. 

Czuczwa J, Levenberger C, Tremp J, Giger W. 1987. Determination of tracelevels of phenol and cresols in rain by continuous liquid-liquid extractionand high-performance liquid chromatography. J Chromatogr 403 233- 241. 

To conduct training courses for analysts of NRLs. A continuous series of laboratory workshops have been organized, (e.g., on immunoassays, high-performance liquid chromatography, and gas chromatography-mass spectrometry). A workshop held in 1991 at RIVM focused on -agonists whereas a workshop in March 1994 at RIVM focused on quality assurance (70). 

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