| 雎敏,马家海,高嵩,张勤,孙彬,黄健,陈燕婷.坛紫菜中无机砷的检测及栽培海区海水和沉积物中痕量砷的初步调查[J].广东农业科学,2013,40(1):163-166 |
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坛紫菜中无机砷的检测及栽培海区海水和沉积物中痕量砷的初步调查 |
| Analysis of inorganic arsenic in Porphyra haitanensis and brief study on arsenic in seawater and sediments of main cultural areas |
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| DOI： |
| 中文关键词: 坛紫菜 砷 食品安全 海洋环境 限量标准 |
| 英文关键词: Porphyra haitanensis Arsenic food safety marine environmental limited standard |
| 基金项目:国家海洋局海洋公益性行业科研专项（201105023） |
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| 中文摘要: |
| 为分析我国坛紫菜产品中砷质量分数在整个生产周期的变化情况及其与当地海水和沉积物中痕量砷的关系，采用银盐法对坛紫菜原藻和加工品中的无机砷质量分数进行测定；用氢化物原子荧光法对栽培海区海水和沉积物中的总砷含量进行检测。结果显示，2011—2012 年我国坛紫菜主产区生产的坛紫菜产品中砷质量分数（0.07~0.65 mg/kg）完全符合食品安全标准中的无机砷限量要求，且随采收批次的增加，无机砷含量呈下降趋势；栽培海区海水中砷浓度（0.0010~0.0027 mg/L）在整个生产周期都低于国家养殖用水水质标准中对砷的限量要求；栽培海区海水中的砷与当地紫菜产品中的无机砷之间总体呈正相关关系；表层沉积物中的砷质量分数（10.0023~31.9163 μg/g）与紫菜中的无机砷没有明显的相关性。 |
| 英文摘要: |
| Samples of Porphyra haitanensis were collected from six cultural areas in Fujian province based on different productive
harvesting times in 2011—2012, including fresh algae, processed products, seawater and sediments. Inorganic arsenic content of Porphyra was determined by DDC-Ag method; arsenic in seawater and sediments were determined by Atomic Fluorescence Spectrometry (AFS)method. Results showed that inorganic arsenic contents in P. haitanensis ranked from 0.07 to 0.65 mg/kg which met the national regulation about arsenic residue in seaweed. This value decreased in the process of harvesting time. Arsenic content in water (0.0010~0.0027 mg/L) indicated a positive correlation with that in P. haitanensis; correlation between arsenic content in P. haitanensis and in sediments (10.0023~31.9163 滋g/g) was not obvious. This study showed that both the contents of inorganic arsenic in P. haitanensis samples and the water were all lower than the limited requirements in national standards. |
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