微波消解-ICP-MS法同时测定干紫菜中28种元素
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摘要
采用微波消解,建立了电感耦合等离子体质谱法(ICP-MS)同时测定干紫菜中28种元素的检测方法。结果显示:在0. 05～100. 0μg/L浓度范围内,28种元素标准曲线线性关系良好,相关系数(r~2)≥0. 9998;检出限在0. 05～0. 50μg/L之间,加标回收率在92. 8%～102. 6%之间,相对标准偏差(RSD)在0. 8%～2. 7%之间;根据干紫菜中元素含量测定结果,干紫菜富含对人体有益的I、K、Na、P、Ca、Mg、Fe元素,尤其是I含量高达18 695mg/kg,而对人体危害有害的重金属元素As、Ag、Cd、Hg、Pb含量较低。通过对干紫菜中元素含量测定,可为干紫菜质量检测、质量评价及其产业可持续发展提供科学依据。
A method for simultaneous determination on 28 elements in dried laver by inductively coupled plasma mass spectrometry( ICP-MS) with microwave digestion was established. The results showed that the standard curve linear relationship of the 28 elements were good,and the correlation coefficient( r~2) were less than 0. 999 8,and the detection limits were ranged from 0. 05 μg/L to 0. 50μg/L,and the recovery rates were ranged from 92. 8% to 102. 6%,and the relative standard deviation( RSD) were ranged from 0. 8% to 2. 7%.According to the results of determination of element content in dried seaweed,dried laver are rich in I,K,Na,P,Ca,Mg and Fe elements,especially I,with a content of 18 695 mg/kg,and As,Ag,Cd,Hg,Pb content are lower,which are harmful to the human body. Through the determination of dried laver element,the quality of dried laver testing,quality evaluation and sustainable development of the industry to provide technical support.
A method for simultaneous determination on 28 elements in dried laver by inductively coupled plasma mass spectrometry( ICP-MS) with microwave digestion was established. The results showed that the standard curve linear relationship of the 28 elements were good,and the correlation coefficient( r~2) were less than 0. 999 8,and the detection limits were ranged from 0. 05 μg/L to 0. 50μg/L,and the recovery rates were ranged from 92. 8% to 102. 6%,and the relative standard deviation( RSD) were ranged from 0. 8% to 2. 7%.According to the results of determination of element content in dried seaweed,dried laver are rich in I,K,Na,P,Ca,Mg and Fe elements,especially I,with a content of 18 695 mg/kg,and As,Ag,Cd,Hg,Pb content are lower,which are harmful to the human body. Through the determination of dried laver element,the quality of dried laver testing,quality evaluation and sustainable development of the industry to provide technical support.
引文
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[11]王晶,黄伟雄,梁旭霞,等.土壤和海洋沉积物中16种稀土元素电感耦合等离子体-质谱测定的酸消解体系选择与消除钪元素背景干扰研究[J].环境与健康杂志,2016,33(5):448-455.
[12]陈岩,等.湿法消解ICP-MS法测定紫菜和海带中15种元素[J].分析试验室,2015,34(7):803-804.
[13]林立,陈光,陈玉红.液相色谱一电感藕合等离子体质谱法联用测定动物性海产品中的无机砷[J].环境化学,2009,28(1):149-152.
[14]王同蕾,任硕,卓勤. ICP-MS法测定不同基质保健品中10种微量元素的方法[J].中国食物与营养,2018,24(3):30-32.
[2]邓银银,陆勤勤,陈伟洲,等.广东部分岛屿紫菜物种研究[J].南方水产科学,2014,21(2):11-17.
[3]王治.紫菜生物活性成分研究进展[J].食品研究与开发,2017,38(10):215-218.
[4]黄爱华,迟玉广,陈宇文. AAS法测定罗布麻叶中的7种微量元素[J].微量元素与健康研究,2010,27(3):24-25.
[5]连晓文,杨秀环,梁旭霞.电感耦合等离子体质谱法测定葡萄酒中微量元素[J].理化检验-化学分册,2008,44(3):1108-1111.
[6] Wang D Y,Xu W M,Xu X L,et al. Determination of intramuscular phospholipid classes and molecular species in gaoyou duck[J].Food Chemistry,2009,112(1):150-155.
[7]徐红,薛海燕,张丛文. ICP-AES法测定不同产地罗布麻叶中的微量元素[J].分析试验室,2010,29(5):194-196.
[8]何家伟,常军民,姚军,等.微波消解-ICP-AES法测定新疆不同产地天山花楸枝叶及果实中的元素[J].光谱学与光谱分析,2013,33(2):544-547.
[9]李敏,等.电感耦合等离子体-质谱法测定酱油中12种金属[J].中国食品卫生杂志,2014,26(4):344-347.
[10]王晓,邵丽,滕振勇.微波消解-电感耦合等离子体质谱法测定蔬菜中的重金属[J].食品安全质量检测学报,2016,7(4):1439-1443.
[11]王晶,黄伟雄,梁旭霞,等.土壤和海洋沉积物中16种稀土元素电感耦合等离子体-质谱测定的酸消解体系选择与消除钪元素背景干扰研究[J].环境与健康杂志,2016,33(5):448-455.
[12]陈岩,等.湿法消解ICP-MS法测定紫菜和海带中15种元素[J].分析试验室,2015,34(7):803-804.
[13]林立,陈光,陈玉红.液相色谱一电感藕合等离子体质谱法联用测定动物性海产品中的无机砷[J].环境化学,2009,28(1):149-152.
[14]王同蕾,任硕,卓勤. ICP-MS法测定不同基质保健品中10种微量元素的方法[J].中国食物与营养,2018,24(3):30-32.