Multielemental determination in Citrus spp bee honey samples by instrumental neutron activation analysis
Description
Recently interest has grown in the determination of the concentration of inorganic chemical elements in honey bee samples, due its utilization as indicator of environmental pollution in several countries of Europe. In the present work, a method was developed to determine some essential and potentially inorganic elements in honey bee samples by intrumental neutrons activation analysis followed by high resolution gamma ray spectrometry. The honey samples were neutron irradiated during differents times at the nuclear research reactor IEA-Rl of the IPEN-CNEN/SP. The elements Na, Cl, K, Mg and Mn were determined using irradiations of 30 minutes under a thermal neutron flux of 1012 n.cm-2.s-1. With 16 hours of irradiation under a flux of 1013 n.cm-2.s-1 and different cooling times, the elements Br, Ca, Au, Sb, Cs, Rb, Zn, Sc, Fe, Co and La were determined. The concentration of the analyzed elements ranged from ng/g to mg/g. In the future, different kinds of bee honey will be analyzed and the characteristic chemical composition of each one will be established. Based on these elemental concentration data, the relationship between the mineral composition of bee honey and its geographical origin can be studied. (author)
Availability note (English)
MF available from INIS under the Report Number.Abstract (Portuguese)
O interesse na determinacao da concentracao de elementos quimicos inorganicos em amostras de meis tem aumentado nos ultimos anos, devido a sua utilizacao como indicador de poluicao ambiental em varios paises da Europa. No presente trabalho, desenvolveu-se um metodo de analise com objetivo de determinar o maior numero possivel de elementos inorganicos, essenciais e potencialmente toxicos, em amostras de mel usando o metodo de analise por ativacao com neutrons instrumental seguido de espectrometria gama de alta resolucao. As amostras de mel foram submetidas a diferentes tempos de irradiacao com neutrons no Reator de pesquisas IEA-Rl do IPEN-CNEN/SP. Com irradiacoes de 30 minutos, sob um fluxo de neutrons termicos de 1012 n.cm-2.s-1, determinaram-se os elementos Na, K, Cl, Mg e Mn. Sob um fluxo de 1013 n.cm-2.s-1 e 16 horas de irradiacao, determinaram-se os seguintes elementos: Br, Ca, Au, Sb, Cs, Rb, Zn, Sc, Fe, Co e La com diferentes tempos de resfriamento. A faixa de concentracao dos elementos analisados variou de ng/g a mg/g. Em continuacao ao presente trabalho, pretende-se analisar diferentes tipos de mel e estabelecer a composicao quimica inorganica caracteristica de cada um deles. A partir desses dados pode-se analisar a existencia de relacoes entre a composicao mineral do mel e sua origem geografica. (autor)Files
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Additional details
Additional titles
- Original title (Portuguese)
- Determinacao multielementar em amostras de mel de Citrus spp pelo metodo de analise por ativacao com neutrons instrumental
Publishing Information
- Imprint Pagination
- 18 p.
- Report number
- IPEN-PUB--310
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 21085863
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- HDEHP; HONEY; MULTI-ELEMENT ANALYSIS; NEUTRON ACTIVATION ANALYSIS; SOLVENT EXTRACTION; SYNERGISM; TBP; TERBIUM; TOPO; TTA; YTTERBIUM
- Descriptors DEC
- ACTIVATION ANALYSIS; BUTYL PHOSPHATES; CHEMICAL ANALYSIS; ELEMENTS; ESTERS; FOOD; HETEROCYCLIC COMPOUNDS; KETONES; METALS; NONDESTRUCTIVE ANALYSIS; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; ORGANIC SULFUR COMPOUNDS; PHOSPHORIC ACID ESTERS; RARE EARTHS; SEPARATION PROCESSES