Determination of strontium-90 in milk samples using a controlled precipitation clean-up step prior to ion-chromatography.

  title={Determination of strontium-90 in milk samples using a controlled precipitation clean-up step prior to ion-chromatography.},
  author={John Cobb and Peter Warwick and R C Carpenter and Robert Thornton Morrison},
  journal={The Science of the total environment},
Strontium-90 may be determined by beta-counting its yttrium-90 daughter following separation by ion-chromatography, using a three column system comprising a chelating concentrator column, a cation-exchange column and an anion-exchange separator column. The column system has previously been applied to the determination of strontium-90 in water and urine samples. The applicability of the system to the analysis of milk is hampered by the large concentrations of calcium present, which significantly… Expand
A Simple Method to Screen for Radiostrontium in Water by Ion Exchange Chromatography
A method to analyze 89Sr and 90Sr in water has been developed using gradient elution with dilute hydrochloric acid and cation exchange resin, followed by carbonate precipitation, found to be simple, exhibiting high recovery, reduced use of hazardous chemicals, and lower cost compared to other current methods. Expand
Distribution of strontium in milk component
The distribution of strontium between the milk components, i.e., serum, casein micelles, whey and hydroxyapatite was determined. The sorption on hydroxyapatite was investigated using batch method andExpand
Sensitive and accurate methods for determination of low activity level of 90Sr and 137Cs in grass/vegetable samples.
  • G. Jia, L. Magro, G. Torri, S. Mariani
  • Medicine
  • Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine
  • 2020
Sensitive, precise and accurate methods for determination of low activity level of 90Sr and 137Cs in grass/vegetable samples by a low background β-counter were developed and indicated that the methods could provide accurate results. Expand
Radiostrontium and radium analysis in low-level environmental samples following a multi-stage semi-automated chromatographic sequential separation.
A novel semi-automated sensitive method that allows the separation and quantification of both (89)Sr and (90)Rn and has also been adapted to quantify (226)Ra during the same sample preparation procedure is developed at the Radiation Protection Bureau of Health Canada. Expand
Measurement of 90Sr in primary coolant of pressurized water reactor
The present procedure for analysing 90Sr combines the use of a non radioactive carrier with high pressure ion chromatography separation, conductivity detection of the carrier and optimized externalExpand
Separation of Sr from Ca, Ba and Ra by means of Ca(OH)2 and Ba(Ra)Cl2 or Ba(Ra)SO4 for the determination of radiostrontium
A simple procedure is developed to separate Sr from a large amount of Ca, which relies on the insolubility of Ca(OH)2 in alkaline solution. Calcium is quantitatively separated from Sr and more thanExpand
Magnesium, Calcium, Strontium, Barium, and Radium
Magnesium, calcium, strontium, barium, and radium are among the alkaline-earth metals, found in group IIA of the periodic table. Sir Humphrey Davy first described the electrochemical isolation ofExpand
Critical comparison of radiometric and mass spectrometric methods for the determination of radionuclides in environmental, biological and nuclear waste samples.
These methods are critically compared for the determination of long-lived radionuclides important for radiation protection, decommissioning of nuclear facilities, repository of nuclear waste, tracer application in the environmental and biological researches. Expand
Soil to rice grain transfer factor and radiological dose of 137Cs and 90Sr around Narora Atomic Power Station (NAPS), Narora, India
Abstract137Cs and 90Sr concentration in rice grain and corresponding agricultural soils were measured (2009–2011) within 15 km radius of Narora Atomic Power Station (NAPS), Narora, India. 137CsExpand


Determination of strontium-90 in water and urine samples using ion chromatography.
A semi-automated method was developed for the determination of 90Sr in water and urine samples using ion chromatography, whereas an oxalate coprecipitation was included as a preconcentration step for urine samples. Expand
Strontium-90 by Ion Exchange Method
An ion exchange method is described for determining strontium-90 in fission products which have decayed at least 10 days. The strontium-90 is adsorbed on a cation-resin column and time allowed forExpand
Measurement of 90Sr in environmental samples by cation-exchange and liquid scintillation counting
Abstract A new method for the measurement of 90Sr in environmental samples by cation-exchange and liquid scintillation counting is described. Strontium carbonate is purified by precipitation andExpand
A simple radiochemical determination of90Sr in environmental samples
A simple procedure for the determination of90Sr in environmental samples is described. The method uses the different solubilities of the oxalates of calcium and strontium in presence of a largeExpand
An improved method FO the determination of90Sr in large samples of seawater
The determination of90Sr in large sample of seawater by its daughter product90Y by means of solvent extraction with bis-2-ethylhexyl-phosphoric acid (HDEHP) ini n-heptane leads to234Th contamination.Expand
Strontium-90 in Environmental Samples from Northern Germany before and after the Chernobyl Accident
The analytical procedure for determining " S r in environmental samples is presented and alternative methods are discussed. The HN03-method seems to be the best method because it is well proven, hasExpand