On-Line Sample Enrichment and Cleanup for High Performance Liquid Chromatography with Column Switching Technique A Review

Internal surface reversed-phase silica supports for liquid chromatography

1985 • 299 citations

Two-dimensional column liquid chromatographic technique for resolution of complex mixtures

1978 • 261 citations

Fully automated high-performance liquid chromatography

1981 • 200 citations

Trace enrichment of polar compounds on chemically bonded and carbonaceous sorbents and application to chlorophenol

1981 • 191 citations

Role of column parameters and injection volume on detection limits in liquid chromatography

1974 • 177 citations

Column swithiching in high-pressure liquid chromatography

1973 • 125 citations

Determination of methotrexate in plasma by on-column concentration and ion-exchange chromatography

1978 • 113 citations

Quantitative analysis of trace amounts of estrogenic steroids in pregnancy urine by column liquid-liquid chromatography with ultraviolet detection

1971 • 112 citations

Some characteristics of a protein-coated ODS column and its use for the determination of drugs by the direct injection analysis of plasma samples

1984 • 95 citations

Trace enrichment techniques in reversed-phase high-performance liquid chromatography

1977 • 75 citations

Systematic approach to column switching

1988 • 74 citations

Assay of Flucytosine and Furosemide by High-Pressure Liquid Chromatography

1975 • 70 citations

Determination of serotonin in serum and plasma by liquid chromatography with precolumn sample enrichment and electrochemical detection

1980 • 69 citations

Column switching techniques in the liquid chromatographic analysis of organochlorine pesticides in milk

1976 • 67 citations

New considerations in detector-application relationships

1975 • 63 citations

The use of a pre-column for the direct high-performance liquid chromatographic determination of the anti-depressants clovoxamine and fluvoxamine in plasma

1980 • 57 citations

Pre-column reactions to eliminate interferents in the liquid chromatographic analysis of p-hydroxybenzoates in complex pharmaceuticals

1976 • 55 citations

A direct injection method of plasma samples onto a reverse phase column for the determination of drugs.

1982 • 52 citations

Drug Monitoring by a fully automated high-performance liquid chromatographic technique, involving direct injection of plasma

1986 • 46 citations

Precolumns of Amberlite XAD-2 for direct injection liquid chromatographic determination of methaqualone in blood plasma

1982 • 46 citations

Automated analysis of antiepileptic drugs in serum by column-switching high-performance liquid chromatography

1984 • 46 citations

Determination of highly protein bound in plasma using high-performance liquid chromatography and column switching, exemplified by the retinoids

1988 • 41 citations

Enrichment of trace components from liquids by displacement column liquid chromatography

1977 • 35 citations

Direct plasma injection method for the analysis of tryptophan metabolites by high-performance liquid chromatography coupled with precolumn deproteinization

1985 • 34 citations

Microcomputer-controlled column switching system for high-performance liquid chromatography

1978 • 28 citations

High-performance liquid chromatographic column switching technique in the analysis of medicated feed for an automated clean-up procedure

1980 • 26 citations

Direct enrichment of tryptophan and its metabolites in plasma onto a pre-column followed by reverse phase HPLC analysis.

1982 • 22 citations

Single Column HPLC Method for Drug Level Monitoring by Direct Plasma Sample Injection. Application to 6-Mercaptopurine, Theophylline and Chlorpromazine

1983 • 21 citations

High-performance liquid chromatographic drug analysis by direct injection of whole blood samples

1987 • 20 citations

On-line deproteinization of serum sample for HPLC analysis of hydrophilic compounds and its application to gentamicin

1986 • 19 citations

Direct, Simultaneous Determination of Propranolol and Its 4-Hydroxy Metabolite by Liquid Chromatography

1984 • 18 citations

High-performance liquid chromatographic drug analysis by direct injection of whole blood samples

1987 • 17 citations

Isolation of new quinidine metabolites and simultaneous determination of quinidine and its metabolites in blood and urine by direct injection HPLC analysis

1985 • 15 citations

High-performance liquid chromatographic drug analysis by direct injection of whole blood samples

1987 • 15 citations

Mild interaction of proteins with butyl and hydroxyl groups on the surface of polymer gels TSK HW-65 and butyl toyopearl 650-M

1986 • 12 citations

Rapid measurement of oestradiol and oestriol by high-performance liquid chromatography after automatic pretreatment

1984 • 12 citations

On-Line Deproteinization of Serum Samples for High Performance Liquid Chromatographic Analysis by Using Adsorbent Gel, Butyl Toyopearl 650-M

1986 • 7 citations

A Fully Automatic Method for Analysis of Individual Bile Acids in the Serum Using High-Performance Liquid Chromatography for Clinical Use

1984 • 6 citations

Effects of drug—protein binding on trace enrichment of drugs in blood plasma on short precolumns

1988 • 5 citations

A new deproteinization method for high performance liquid chromatographic analysis of drugs with direct serum sample injection.

1986 • 4 citations

Studies on variation of tryptophan metabolites level in rabbit plasma with preparation procedures by high performance liquid chromatography.

1984 • 4 citations