| HG-AAS法测定不锈钢食具浸泡液中的砷 |
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| 引用本文： | 蒋小良,王洁泉,黄钧,叶林,苏淑坛,艾晓军.HG-AAS法测定不锈钢食具浸泡液中的砷[J].化学分析计量,2011,20(6):40-42. |
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| 作者姓名： | 蒋小良 王洁泉 黄钧 叶林 苏淑坛 艾晓军 |
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| 作者单位： | 1. 江门出入境检验检疫局,广东江门,529000
2. 武警黄金地质研究所,河北廊坊,065000 |
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| 摘 要： | 研究了利用氢化物发生原子吸收法测定不锈钢食具浸泡液中痕量砷的反应体系.对载气流速、硼氢化钠溶液的浓度、5％抗坏血酸-5％硫脲溶液添加量和介质酸度的影响,以及基体和共存离子的干扰等条件进行了研究.样品加标回收率为95.8％～106.2％,测定结果的相对标准偏差不大于2.8％,方法检出限为0.12 μg/L.该方法适用于不...
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| 关 键 词： | 氢化物发生 不锈钢食具 浸泡 砷 |
DETERMINATION OF ARSENIC IN STAINLESS STEEL FOOD CONTAINERS BY HG-AAS |
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| Jiang Xiaoliang,Wang Jiequan,Huang Jun,Ye Lin,Su Shutan,Ai Xiaojun.DETERMINATION OF ARSENIC IN STAINLESS STEEL FOOD CONTAINERS BY HG-AAS[J].Chemical Analysis And Meterage,2011,20(6):40-42. |
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| Authors: | Jiang Xiaoliang Wang Jiequan Huang Jun Ye Lin Su Shutan Ai Xiaojun |
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| Institution: | Jiang Xiaoliang, Wang Jiequan, Huang Jurl, Ye Lin, Su Shutan ( Jiangmen Entry-Exit Inspection and Quarantine Bureau, Jiangmen 529000, China ) Ai Xiaojun ( Gold Geological Institute of CAPF, Langfang 065000, China) |
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| Abstract: | Trace arsenic eroded from stainless steel food containers was determined by hydride generation atomic absorption spectrometry. The influences of flow velocity of carder gases, concentration of NaBH4 （sodium boron hydride）, volume of 5% L-ascorbic acid and 5% thiourea, acidity and interference of coexisting ion were tested. Recovery obtained by standard addition method on samples were in the range of 95.8%-106.2%. The relative standard deviation of determination results was not more than 2.8%, and the detection limit was 0.12 μg/L. The method is suitable for the determination of trace arsenic in stainless steel food l containers. |
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| Keywords: | hydride generation stainless steel food containers eroded arsenic |
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