𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Determination of14C labelled carbonate in solution

✍ Scribed by E. Føyn; S. Hanneborg

Publisher
Springer-Verlag
Year
1971
Tongue
English
Weight
257 KB
Volume
8
Category
Article
ISSN
0025-3162

No coin nor oath required. For personal study only.

✦ Synopsis

A direct and a diffusion method to be applied when measuring ~4C labelled carbon dioxide by productivity measurements in natural water have been described. The labelled carbonate was trapped by t N solutions of NaOH, KOH or Ba(OH h. Results comparable to those obtainable by the biological method are achieved when using 100 tzl of a 1 N KOH solution as a fixation reagent. The radiocarbonate fixed in this way was found to be stable for several days when dried, cooled, and stored in a desiccator. The reliability of these methods was demonstrated by analysing solutions containing various amounts of laC labelled carbonate.

📜 SIMILAR VOLUMES

Synthesis of carbon-14 labeled [1-14C]-,
Synthesis of carbon-14 labeled [1-14C]-, and [2-14C]-L-tyrosine
✍ W. Augustyniak; R. Kański; M. Kańska 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 French ⚖ 96 KB 👁 1 views

## Abstract Two labeled isotopomers of L‐tyrosine, L‐Tyr, have been synthesized using specific properties of the enzymes phenylanine ammonia lyase, PAL, and L‐phenylalanine hydroxylase. In an intermediate step [1‐^14^C]‐, and [2‐^14^C]‐L‐phenylalanine, L‐Phe, have been obtained from [1‐^14^C]‐, and

Syntheses of 14C-mustard-labelled and 14
Syntheses of 14C-mustard-labelled and 14C-leucine-labelled Asaley
✍ D. Farquhar; K. Lu; T. L. Loo 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 French ⚖ 429 KB

## Abstract The synthesis of Asaley labelled with ^14^C in the mustard (Asaley‐must‐^14^C) or the leucine (Asaley‐leu‐^14^C) moiety is described. In the former, ethyl pamino‐N^α^‐acetyl‐DL‐phenylalanyl‐L‐leucinate was reacted with ethylene oxide(U)‐^14^C to give the bis(hydroxyethyl)amino analogue,

Synthesis of carbon-14 labelled acetamin
Synthesis of carbon-14 labelled acetaminophen (4-hydroxyphenylacetamide, carbonyl-14C)
✍ S. Stavchansky; P. Wu 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 French ⚖ 120 KB 👁 1 views

## Abstract A simple and convenient method for the condensation of paminophenol (I) with ^14^C‐acetic anhydride (II) yields up to 76% of ^14^C‐labelled 4‐hydroxyphenylacetamide (carbonyl‐^14^C) (III). Typical synthesis time is 60 minutes. Radioactive yield is 51%, and specific activity is 0.22 μCi/

Preparation of 14C-labelled poly(ℓ-menth
Preparation of 14C-labelled poly(ℓ-menthyl isopropenyl carbonates)
✍ Roger A. Comes; Harvey J. Grubbs 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 French ⚖ 275 KB

## Abstract The synthesis of ^14^C‐labelled poly(ℓ‐menthyl isopropenyl carbonate) is described. Experimental conditions are included for incorporation of ^14^C into each of the carbon atoms in the molecule. High pressure liquid chromatography conditions are given for separation and purification of