Multielement determination in estuarine suspended particulate matter by instrumental neutron activation analysis

Autor:	Amares. Chattopadhyay, Katherine M. Ellis
Rok vydání:	1979
Předmět:	Detection limit Trace Amounts chemistry Radiochemistry chemistry.chemical_element Thorium Barium Actinide Neutron activation analysis Particulates Lutetium Analytical Chemistry
Zdroj:	Analytical Chemistry. 51:942-947
ISSN:	1520-6882 0003-2700
Popis:	An instrumental neutron activation analysis (INAA) method has been developed for the simultaneous multielement determinations in samples of estuarine suspended particulate matter (SPM) weighing between 0.75 and 7.5 mg. The INAA method consists of four sequential irradiations at two different fluxes and counting after four decay periods using a high-resolution Ge(Li) detector. Concentrations of up to 28 elements have been measured in estuarine SPM collected from water with salinity varying between 2.23 and 29.9%. The average precision of measurement has been observed to vary between +-10 to 16% for most elements. The accuracy of determination has been evaluated by analyzing standard reference materials, and agreements within +-10% of the certified values have been obtained. The detection limits for most trace elements have ranged between 0.37 ng and 1.0 ..mu..g.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8816f04b2442864323c3160e11875b53 https://doi.org/10.1021/ac50043a037 Zobrazit plný text záznamu