| A new approach to specific labelling of organic compounds with tritium: Catalysed exchange in solution with tritium gas | 1974/10/01 | English | 96 |
| Chemical studies on tobacco smoke XXIII. Synthesis of carbon‐14 labelled myosmine, nornicotine and N′‐nitrosonornicotine | 1974/01/01 | English | 55 |
| Stability and storage of compounds labelled with radioisotopes | 1966/01/01 | English | 45 |
| Preparation of deuterium labelled catecholamines, catecholamine precursors and metabolites for use as internal standards in mass fragmentographic determination and for turnover studies | 1974/04/01 | English | 40 |
| Peptidic hormone interactions at the molecular level‐preparation of highly labelled 3H oxytocin | 1970/07/01 | English | 36 |
| Dispositif Automatique de Transfert de Gaz (Tritium, Deuterium, Hydrogene) | 1975/01/01 | English | 29 |
| Synthesis of deuteriomethyl aromatic hydrocarbons by exchange with dimethylsulfoxide‐d6 | 1970/07/01 | English | 27 |
| Syntheses with stable isotopes: Pyridine‐15N | 1974/04/01 | English | 26 |
| Synthesis of 3‐morpholino‐N‐ethoxycarbonyl sydnonimine‐5‐14C (sin‐10‐14C) | 1975/01/01 | English | 25 |
| Synthese von 14C‐ringmarkierten phenolischen Ligninspaltstücken und Ligninalkoholen aus Ba14CO3 | 1966/04/01 | English | 23 |
| Synthesis of N‐alkane derivatives labelled with several 13C | 1975/01/01 | English | 21 |
| Preparation of millicurie quantities of oxygen‐15 labeled water | 1969/04/01 | English | 21 |
| Synthesis of a new adrenal cortex imaging agent 6β‐131 I‐iodomethyl‐19‐nor cholest ‐5(10)‐en‐3β‐ol (NP‐59) | 1975/01/01 | English | 20 |
| The synthesis of 5‐hydroxyindole‐3‐(‐2‐D2‐acetic acid) and α,α′,β,β′‐D4‐5‐hyoroxytryptamine | 1975/01/01 | English | 20 |
| Syntheses with stable isotopes: Synthesis of deuterium and 13C labeled bile acids | 1973/10/01 | English | 19 |
| The synthesis of deuterium, carbon‐14, and carrier‐free tritium labeled cannabinoids | 1975/01/01 | English | 19 |
| Validity of tritium tracers. Stability of tritium atoms in purines, pyrimidines, nucleosides and nucleotides | 1970/01/01 | English | 18 |
| A new synthesis for the preparation of 14C‐labelled alkali cyanides | 1971/07/01 | English | 17 |
| Syntheses with stable isotopes: Methanol‐13C, methanol‐13C‐D4 and methanol‐12C | 1974/04/01 | English | 17 |
| The synthesis of 11,11‐dideuterolinoleic acid | 1971/01/01 | English | 14 |
| Chlorisotopenaustausch bei organischen verbindungen, II(1) hexachlorpropen und alcl3‐36Cl | 1967/10/01 | English | 14 |
| Darstellung von Coniferyl‐ und Sinapinalkohol, markiert in den Methoxylgruppen durch 14C | 1965/10/01 | English | 14 |
| The synthesis of l‐amino acids and their derivatives labelled with 3H | 1971/10/01 | English | 13 |
| The production of 15N‐labelled S‐adenosylmethionine and adenine by yeast biosynthesis | 1968/07/01 | English | 13 |
| Iodation enzymatique de protéines | 1965/04/01 | English | 12 |
| Enzymic preparation of specifically 14C and 3H labelled shikimic acids | 1971/10/01 | English | 12 |
| Synthesis of 17α ‐ethynylestradiol‐6, 7‐3H and 17α‐ethynylestradiol‐6,7‐3H, 3‐cyclopentyl‐1‐14C ether | 1970/07/01 | English | 11 |
| The synthesis of 11,11‐dideuterooleic acid | 1971/04/01 | English | 11 |
| Synthesis of specifically tritium‐labelled oxytocin and lysine‐vasopressin with high specific activity | 1967/01/01 | English | 11 |
| The synthesis of 14C‐methylene diiodide and 14C‐propane‐1,3‐dibromide | 1975/01/01 | English | 11 |