| 刊名 | Asian Agricultural Research |
| 作者 | Mimi ZHANG |
| 作者单位 | Anhui Institute for Food and Drug Control； National Agriculture vice-processing Food Surveillance Test Center |
| DOI | 10.19601/j.cnki.issn1943-9903.2023.07.012 |
| 年份 | 2023 |
| 刊期 | 7 |
| 页码 | 51-53 |
| 关键词 | Microwave Digestion, Flame atomic absorption spectroscopy, Lime-preserved eggs, Lead |
| 摘要 | [Objectives] To establish a method for determining the lead content in lime-preserved eggs, to provide a theoretical basis for the quality control of production enterprises and the sampling and testing of supervision departments. [Methods] The lead content in lime-preserved eggs was measured by the microwave digestion and flame atomic absorption spectroscopy. [Results] The method had a correlation coefficient of r2=0.998 in the injection concentration range of 0-4 mg/L. The detection limit of the method was 0.008 2 mg/kg. In the range of 0.2 to 1.0 mg/kg addition concentration, the recovery rate of the method was 92.5%-108.0%, and the relative standard deviation (RSD) was <5%. [Conclusions] This method is accurate and reliable, simple and efficient, and is suitable for the detection of lead in lime-preserved eggs. |
