| Autor: |
塩野弘二, 志田(齊藤)静夏, 今村正隆, 根本了, 種山浩 |
| Zdroj: |
Japanese Journal of Food Chemistry & Safety; 2017, Vol. 24 Issue 3, p114-118, 5p |
| Abstrakt: |
The maximum residue limits (MRL) for arsenic in the eleven agricultural products as pesticide residues is set in Japan. A method for the determination of arsenic pesticide residues in the agricultural products using hydride generation-atomic absorption spectrometry method was developed. The samples were digested by wet ashing method using nitric and sulfuric acid, pre-reduced by hydrochloric acid and potassium iodide to prepare test solution, prior to measurement by hydride generation-atomic absorption spectrophotometer. The absorbance of test solution after pre-reduction was stable until 30 minutes. The calibration curve in the concentration of 1.0-10 ng/mL had good linearity. The proposed method was validated for 11 kinds of agricultural products at MRL. The results showed excellent recoveries (98.7-105.4%) and repeatability (2.1-4.7%). The study showed that the developed method using hydride generation-atomic absorption spectrometry method is reliable and applicable for the determination of arsenic in the agricultural products as the regulation of pesticide residue. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
