E-resources
Peer reviewed
-
da Silva, Maria José; Paim, Ana Paula S.; Pimentel, Maria Fernanda; Cervera, M. Luisa; de la Guardia, Miguel
Analytica chimica acta, 05/2010, Volume: 667, Issue: 1Journal Article
A cold vapor atomic fluorescence spectrometry method (CV-AFS) has been developed for the determination of Hg in rice samples at a few ng g −1 concentration level. The method is based on the previous digestion of samples in a microwave oven with HNO 3 and H 2O 2 followed by dilution with water containing KBr/KBrO 3 and hydroxylamine and reduction with SnCl 2 in HCl using external calibration. The matrix interferences and the effect of nitrogen oxide vapors have been evaluated and the method validated using a certified reference material. The limit of detection of the method was 0.9 ng g −1 with a recovery percentage of 95 ± 4% at an added concentration of 5 ng g −1. The concentration level of Hg found in 24 natural rice samples from different origin ranged between 1.3 and 7.8 ng g −1.
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|
Source: Personal bibliographies
and: SICRIS
The material is available in full text. If you wish to order the material anyway, click the Continue button.