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| 石墨炉原子吸收法测定食品中痕量铅 |
| Determination of Trace Plumbum in Food and Food Additive by GFAAS |
| 投稿时间：2004-03-17 修订日期：2004-06-04 |
| DOI： |
| 中文关键词: 食品 铅 石墨炉原子吸收法 |
| 英文关键词:food Plumbum graphite furnace atomic absorption spectrometry(GFAAS) |
| 基金项目: |
| 作者 | 单位 | | 余志峰 | 地矿部甘肃省中心实验室, 甘肃, 兰州, 730050 | | 温劲松 | 地矿部甘肃省中心实验室, 甘肃, 兰州, 730050 | | 张旺强 | 地矿部甘肃省中心实验室, 甘肃, 兰州, 730050 | | 田凯 | 甘肃地勘局第四矿产勘察院, 甘肃, 酒泉, 735000 | | 毛振才 | 地矿部甘肃省中心实验室, 甘肃, 兰州, 730050 |
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| 中文摘要: |
| 样品经硝酸和高氯酸分解后,加入磷酸二氢铵作基体改进剂测定铅,方法快捷,准确,经济,精密度≤14%,回收率92%～104%,检出限0.4ng/mL,用于多种食品中铅的测定,结果令人满意. |
| 英文摘要: |
| The sample was dissolved in HNO3 and HClO4,NH4H2PO4 was used as a reagent to amend the condition of solution. Trace plumbum in food and food additive was determined by GFAAS. The RSD was less than 14%. The detection limit of the method is 0.4 ng/ml for plumbum.The method has been applied to the determination of trace plumbum in many food and food additive. The result is satisfactory. |
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