| 微量进样火焰原子吸收光谱法对牛奶中钙的直接测定 |
| |
| 引用本文： | 区红,贾薇,舒永红,张燕子.微量进样火焰原子吸收光谱法对牛奶中钙的直接测定[J].分析测试学报,2008,27(12). |
| |
| 作者姓名： | 区红 贾薇 舒永红 张燕子 |
| |
| 作者单位： | 1. 中国广州分析测试中心,广东省化学危害应急检测技术重点实验室,广东,广州,510070
2. 广州中医药大学,中药学院,广东,广州,510006 |
| |
| 摘 要： | 采用微量进样火焰原子吸收光谱法（FAAS）直接测定牛奶中的钙,无需样品预处理。该法与消化后常规FAAS法的测定结果一致。钙质量浓度在0～20 mg/L范围内与吸光度呈线性关系,检出限（S/N=3）为0.013 mg/L,加标回收率为98%～101%,相对标准偏差（n=6）小于2%。方法应用于实际样品的测定,结果令人满意。
|
| 关 键 词： | 微量进样 火焰原子吸收光谱法 钙 牛奶 |
Direct Determination of Calcium in Milks by Micro-sampling Flame Atomic Absorption Spectrometry |
| |
| OU Hong,JIA Wei,SHU Yong-hong,ZHANG Yan-zi.Direct Determination of Calcium in Milks by Micro-sampling Flame Atomic Absorption Spectrometry[J].Journal of Instrumental Analysis,2008,27(12). |
| |
| Authors: | OU Hong JIA Wei SHU Yong-hong ZHANG Yan-zi |
| |
| Abstract: | A method for the determination of calcium in milks by micro-sampling flame atomic absorption spectrometry(FAAS) was developed.Calcium was directly determined in the diluted milk sample by FAAS without pretreatment process.The result was in well agreement with that of digested sample with HNO3-HClO4.A good linearity was observed between absorbance intensity and calcium concentration in a range of 0-20 mg/L with a detection limit(S/N=3) of 0.013 mg/L.The recoveries of calcium from spiked milk samples ranged f... |
| |
| Keywords: | micro-sampling flame atomic absorption spectrometry calcium milk |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
