试纸法快速检测水中铝含量的研究_战春梅.doc

分析检测  试纸法快速检测水中铝含量的研究 战春梅，田然，郑冬梅，田波* 东北农业大学乳品科学教育部重点实验室（哈尔滨 150030） 摘 要 为了实现生活饮用水中金属铝元素的快速检测, 试验制作了铝的检测试纸, 并对其进行了应用性验证。将试纸于浸泡液中浸泡10 min, 经过两次浸泡, 60 ℃下干燥15 min, 放入光电测色仪中, 在波长560 nm下检测, 反应时间为6 min。所得到的标准曲线在0~1 μg/mL的铝含量范围内有较好的线性关系, 该方法的相对标准偏差在1.66%~4.78%之间, 加标回收率为94%~98%。试纸法与铬天青S分光光度法检测结果两者之间差异无统计学意义 (p＞0.05)。该方法具有检测灵敏、快速方便等优点。 关键词 水; 铝; 试纸; 快速检测 Study on the Method of Test Strip for Rapid Detecting the Content of Aluminum in Water Zhan Chun-mei, Tian Ran, Zheng Dong-mei, Tian Bo* Key Laboratory of Dairy Science of Education Ministry, College of Food Science, Northeast Agricultural University (Harbin 150030) Abstract In order to achieve rapid detection of aluminum elements in drinking water, produce a test paper of aluminum, and make the verification of application. Putting the test paper in soaking liquor for 10 min, after two times of immersion and dry for 15 min in 60 ℃, then put it in photoelectric detector, with detection wavelength of 560 nm and reaction time of 6 min. The standard curve had a good linear relationship in the range of 0~1 μg/mL aluminum content. The relative standard deviations of the method were between 1.66% and 4.78%, and the recovery of standard addition was 94%~98%. The results of test method and Chrome Azurol S spectrophotometric method were without statistically significant ( p0.05). This method has advantages of detection sensitivity, also was fast and convenient. Keywords water; aluminum; test paper; rapid detection 在食品中铝污染的来源主要是加工过程中使用含 铝元素的过量摄入对人体是有害的[1]。但是长期以来铝添加剂（如明矾等）所致，其虽可使食品膨松酥 铝被认为是安全无害的物质，所以铝盐被广泛用于食脆，但是铝元素不属于人体所必需的微量元素，所以 品添加剂、水处理剂及药物等，金属铝及其合金被广  吴序栎. 牛乳β-乳球蛋白的检测及茶多酚对其免疫反应性影响的研究[D]. 广州: 华南理工大学, 2012: 4-5. WROBLEWSKA B, KARAMC M, AMAROWIICZ R. Immuorective properties of peptide fractions of cow whey milk proteins after enzymatic hydrolysis[J]. International Journal of Food Science and Technology, 2004, 39(11): 839-850. JUNG F, MEYER H D, HAMM R T. Development of a sensitive enzyme-linked immunosorbent aassay for the fungicide