Fast-Scan Anodic Stripping Voltammetry for Detection of Pb(II) at Picomolar Level
Fast-Scan Anodic Stripping Voltammetry for Detection of Pb(II) at Picomolar Level
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用于检测皮摩尔水平 Pb(II) 的快速扫描阳极溶出伏安法
DOI：
10.1134/s1023193519020162
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发表时间：
2019-03
影响因子：
1.2
通讯作者：
Guo Zhiyong
中科院分区：
文献类型：
--
作者：
Yang Fan;Liu Peng;Hao Tingting;Wu Yangbo;Ma Shaohua;Hu Yufang;Wang Sui;Guo Zhiyong
应用快速扫描阳极溶出伏安法 (FSASV) 灵敏地检测汞膜电极 (MFE) 上的 Pb2+。该方法涉及通过在 MFE 上积累 Pb2+ 进行受控预浓缩，然后进行 FSASV 测量。在扫描速率为500 V/s时，阳极剥离峰值电流与溶液中Pb2+浓度对数在0.1 µmol/L~0.1 pmol/L范围内呈线性关系，检测限为0.1 pmol/L。该方法成功应用于加标水样中Pb2+的测定，回收率在98.6%~104.3%范围内，相对标准偏差在3.7%~5.5%范围内。因此，FSASV 是一种灵敏、快速、经济且简单的皮摩尔水平 Pb2+ 检测方法，在重金属测定中具有广阔的应用前景。
Fast-scan anodic stripping voltammetry (FSASV) was applied to sensitively detect Pb2+ on a mercury film electrode (MFE). The method was involved with a controlled preconcentration by accumulation of Pb2+ on the MFE followed by FSASV measurement. At the scan rate of 500 V/s, a linear relationship between the anodic stripping peak current and the logarithm of Pb2+ concentration in the solution was observed in the range from 0.1 µmol/L to 0.1 pmol/L with a detection limit of 0.1 pmol/L. The proposed method was successfully applied for the determination of Pb2+ in spiked water samples with satisfying recoveries in the range of 98.6 to 104.3%, and the corresponding relative standard deviation ranged from 3.7 to 5.5%. Therefore, FSASV is a sensitive, fast, cost-effective and simple method for the detection of Pb2+ at picomolar level and would be very promising in heavy metal determination.
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影响因子：
7.4
作者：
Pathirathna, Pavithra;Yang, Yuanyuan;Hashemi, Parastoo
通讯作者：
Hashemi, Parastoo
影响因子：
4.5
作者：
Zhiyong Guo;Xiangqin Lin
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Zhiyong Guo;Xiangqin Lin
影响因子：
3.1
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影响因子：
7.4
作者：
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通讯作者：
Tingting Wang;K. Schlueter;B. L. Riehl;Jay M. Johnson;W. Heineman
影响因子：
7.4
作者：
Zachek, Matthew K.;Takmakov, Pavel;Moody, Benjamin;Wightman, R. Mark;McCarty, Gregory S.
通讯作者：
McCarty, Gregory S.