Identification and quantitation of diketopiperazines by liquid chromatography—mass spectrometry, using a moving belt interface

Simple route to sterically pure diketopiperazines

Danute E. Nitecki, Berthold Halpern, John Westley · The Journal of Organic Chemistry · 1968 · 177 citations

Pharmacy, Chemistry, Medicinal Chemistry +5

Identification of the Bitter Principle of Cocoa

Wilhelm Pickenhagen, Paul Dietrich, Borivoij Keil et al. · Helvetica Chimica Acta · 1975 · 98 citations

Agriculture, Biochemistry, Food Science +12

Analysis of pepper and capsicum oleoresins by high-performance liquid chromatography—mass spectrometry and field desorption mass spectrometry

David E. Games, Nicholas J. Alcock, J. van der Greef et al. · Journal of Chromatography A · 1984 · 44 citations

Agriculture, Food Science, Plant Sciences +14

LC/MS Determination of Bromazepam, Clopenthixol, and Reserpine in Serum of a Non-Fatal Case of Intoxication

A.C. Tas, J. van der Greef, M.C. ten Noever de Brauw et al. · Journal of Analytical Toxicology · 1986 · 31 citations

Pharmacy, Pharmacology, Toxicology +6

Determination of steric purity and configuration of diketopiperazines by gas-liquid chromatography, thin-layer chromatography, and nuclear magnetic resonance spectrometry

John Westley, V. A. Close, D. N. Nitecki et al. · Analytical Chemistry · 1968 · 28 citations

Natural Sciences, Chemistry, Medicinal Chemistry +10