Quantification of carnitine and specific acylcarnitines by high-performance liquid chromatography: application to normal human urine and urine from patients with methylmalonic aciduria, isovaleric acidemia or medium-chain acyl-CoA dehydrogenase deficiency

An improved and simplified radioisotopic assay for the determination of free and esterified carnitine

1976 • 536 citations

A method for the determination of carnitine in the picomole range

1972 • 464 citations

Phenacyl esters of fatty acids via crown ether catalysts for enhanced ultraviolet detection in liquid chromatography

1975 • 395 citations

Enzymological determination of free carnitine concentrations in rat tissues

1964 • 317 citations

Urinary Excretion of l-Carnitine and Acylcarnitines by Patients with Disorders of Organic Acid Metabolism: Evidence for Secondary Insufficiency of l-Carnitine

1984 • 247 citations

Microdetermination of (−)carnitine and carnitine acetyltransferase activity

1977 • 197 citations

Application of fast atom bombardment with tandem mass spectrometry and liquid chromatography/ mass spectrometry to the analysis of acylcarnitines in human urine, blood, and tissue

1989 • 197 citations

Carnitine levels in human serum in health and disease

1974 • 189 citations

Biosynthesis of carnitine and 4-N-trimethylaminobutyrate from 6-N-trimethyl-lysine

1973 • 99 citations

O-acylation f dl-carnitine chloride

1967 • 72 citations

A radioisotopic-exchange method for quantitation of short-chain (acid-soluble) acylcarnitines

1983 • 58 citations

Derivatization of carboxylic acids by reaction with 4′-bromophenacyl trifluoromethanesulfonate prior to determination by high-performance liquid chromatography

1984 • 52 citations

Analysis of acylcarnitines as their N-demethylated ester derivatives by gas chromatography-chemical ionization mass spectrometry

1991 • 39 citations

Quantitative assay of free and total carnitine using tandem mass spectrometry

1990 • 38 citations

Analysis of acylcarnitines in normal human urine with the radioisotopic exchange-high performance liquid chromatography (HPLC) method

1989 • 32 citations

Measurement of urinary free and acylcarnitines: Quantitative acylcarnitine profiling in normal humans and in several patients with metabolic errors

1989 • 28 citations

Identification of urinary acylcarnitines using gas chromatography—mass spectrometry: preliminary clinical applications

1992 • 26 citations

Synthesis of radioactively methyl‐labelled (l)‐carnitine

1982 • 24 citations

Quantitation of urinary carnitine esters in a patient with medium-chain acyl-coenzyme A dehydrogenase deficiency: Effect of metabolic state and l-carnitine therapy

1989 • 23 citations

Determination of free carnitine and ‘total’ carnitine in human urine: derivatization with 4'-bromophenacyl trifluoromethanesulfonate and high performance liquid chromatography

1992 • 22 citations

High-performance liquid chromatographic separation of acylcarnitines following derivatization with 4′-bromophenacyl trifluromethanesulfonate

1990 • 20 citations

Reverse-phase high-performance liquid chromatographic analysis of short-, medium- and long-chain acylcarnitines in urine and plasma

1988 • 12 citations

Derivatization of isolated endogenous butyrobetaine with 4'-bromophenacyl trifluoromethanesulfonate followed by high-performance liquid chromatography

1992 • 8 citations