白瑞霞, 殷皓铭, 黄方. 一种便携快速测量水中铅和镉含量的仪器-ANDalyze[J]. 分析测试技术与仪器, 2020, 26(1): 17-23. DOI: 10.16495/j.1006-3757.2020.01.004
引用本文: 白瑞霞, 殷皓铭, 黄方. 一种便携快速测量水中铅和镉含量的仪器-ANDalyze[J]. 分析测试技术与仪器, 2020, 26(1): 17-23. DOI: 10.16495/j.1006-3757.2020.01.004
BAI Rui-xia, YIN Hao-ming, HUANG Fang. A Portable Instrument of Measuring Lead and Cadmium Contents in Water Using DNAzyme Sensors[J]. Analysis and Testing Technology and Instruments, 2020, 26(1): 17-23. DOI: 10.16495/j.1006-3757.2020.01.004
Citation: BAI Rui-xia, YIN Hao-ming, HUANG Fang. A Portable Instrument of Measuring Lead and Cadmium Contents in Water Using DNAzyme Sensors[J]. Analysis and Testing Technology and Instruments, 2020, 26(1): 17-23. DOI: 10.16495/j.1006-3757.2020.01.004

一种便携快速测量水中铅和镉含量的仪器-ANDalyze

A Portable Instrument of Measuring Lead and Cadmium Contents in Water Using DNAzyme Sensors

  • 摘要: 快速测量污染水中重金属元素含量对于监测野外突发污染至关重要.建立了使用以生物酶(DNA酶)为原理的便捷仪器快速测定污染水中铅(Pb)和镉(Cd)元素含量的方法.使用生物酶传感器对标准溶液进行测量,根据溶液推荐和测量浓度之间的线性关系对仪器进行校准后,可测量的质量浓度范围:Pb为2~100 μg/L,Cd为0.1~1.0 mg/L.仪器可以在3~5 min内方便快速完成重金属的现场测量,使用DNA酶可以快速获得污染水中的微量金属元素含量,有利于野外重金属污染的即时测量.

     

    Abstract: Quick measurement of heavy metal contents in water is important for monitoring the abrupt environmental pollution. A method for quick measurement of Pb and Cd contents in water using a portable instrument which is based on bio-enzyme (DNAzymes) sensor technique is reported. The instrument was calibrated based on the linear relations between the recommended and measured concentrations of standard solutions using a bio-enzyme sensor. The range of measurable concentrations were 2~100 μg/L for Pb and 0.1~1.0 mg/L for Cd. Heavy metals can be conveniently measured in the field within 3~5 min. Because the uses of DNAzymes can quickly obtain the contents of trace metals in polluted waters, it is promising in the instantaneous monitor of heavy metal pollution in the field.

     

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