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Mild radioiodination of insulin with dichloramine-T

Abstract

Iodination of insulin using N-dichloro-p-toluene sulphonamide(dichloramine-T) has been standardised. Dichloramine-T, a water insoluble derivative of chloramine-T showed excellent properties as an iodination reagent, for the preparation of radiolabeled insulin for use in radioimmunoassay. Iodination using dichloramine-T could be done at as low as 0.5-2 ..mu..g of the reagent, and at this concentration the molar ratio worked out to 1:3 to 1:12 (protein: dichloramine-T). Iodination yields of greater than 90% were obtained at pH 5-7. Evaluation of the iodinated tracer for suitability in radioimmunoassay was carried out by estimating radiochemical purity, immunological purity, non specific binding and stability on storage.
Publication Date:
Jan 01, 1986
Product Type:
Journal Article
Reference Number:
GBN-87-002314; EDB-88-040820
Resource Relation:
Journal Name: Nucl. Med. Biol.; (United Kingdom); Journal Volume: 13:5
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; 60 APPLIED LIFE SCIENCES; INSULIN; IODINE 125; LABELLING; CHEMICAL PREPARATION; CHLORAMINES; EVALUATION; IODINATION; LABELLED COMPOUNDS; RADIOIMMUNOASSAY; AMINES; BETA DECAY RADIOISOTOPES; CHEMICAL REACTIONS; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; HALOGENATION; HORMONES; IMMUNOASSAY; IMMUNOLOGY; INTERMEDIATE MASS NUCLEI; IODINE ISOTOPES; ISOTOPE APPLICATIONS; ISOTOPES; NUCLEI; ODD-EVEN NUCLEI; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; PEPTIDE HORMONES; RADIOASSAY; RADIOIMMUNOLOGY; RADIOISOTOPES; SYNTHESIS; TRACER TECHNIQUES; 400703* - Radiochemistry & Nuclear Chemistry- Radioisotope Production; 553006 - Agriculture & Food Technology- Other Agricultural Applications- (1987-)
OSTI ID:
5659006
Research Organizations:
Bhabha Atomic Research Centre, Bombay, India. Radiopharmaceuticals Section
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: NMBIE
Submitting Site:
GBN
Size:
Pages: 549-550
Announcement Date:
Dec 01, 1987

Citation Formats

Jyotsna, T, Pillai, M R.A., Gupte, J H, and Mani, R S. Mild radioiodination of insulin with dichloramine-T. United Kingdom: N. p., 1986. Web.
Jyotsna, T, Pillai, M R.A., Gupte, J H, & Mani, R S. Mild radioiodination of insulin with dichloramine-T. United Kingdom.
Jyotsna, T, Pillai, M R.A., Gupte, J H, and Mani, R S. 1986. "Mild radioiodination of insulin with dichloramine-T." United Kingdom.
@misc{etde_5659006,
title = {Mild radioiodination of insulin with dichloramine-T}
author = {Jyotsna, T, Pillai, M R.A., Gupte, J H, and Mani, R S}
abstractNote = {Iodination of insulin using N-dichloro-p-toluene sulphonamide(dichloramine-T) has been standardised. Dichloramine-T, a water insoluble derivative of chloramine-T showed excellent properties as an iodination reagent, for the preparation of radiolabeled insulin for use in radioimmunoassay. Iodination using dichloramine-T could be done at as low as 0.5-2 ..mu..g of the reagent, and at this concentration the molar ratio worked out to 1:3 to 1:12 (protein: dichloramine-T). Iodination yields of greater than 90% were obtained at pH 5-7. Evaluation of the iodinated tracer for suitability in radioimmunoassay was carried out by estimating radiochemical purity, immunological purity, non specific binding and stability on storage.}
journal = []
volume = {13:5}
journal type = {AC}
place = {United Kingdom}
year = {1986}
month = {Jan}
}