企业简介
旭月(北京)科技有限公司(http://xuyue.net),是2005年创立于中关村科技园区的国家高新技术企业。创始人许越先生,曾服务于美国航空航天局NASA,是现代“非损伤微测技术(NMT)”奠基人,动态分离子组学(imOmics)创始人,NMT产业化倡导者,美国扬格公司(http://youngerusa.com)现任总裁。
联系方式
电话:010-82622628
公司地址:北京市海淀区苏州街49-3号盈智大厦601
邮 编:100080......
NMT历史上的今天丨ENVIRON EXP BOT 铵营养与Cd胁迫关系 文章发表
上一篇 /
下一篇 2019-10-11 15:06:41/ 个人分类:NMT历史上的今天
NMT历史上的今天
2017年10月10日,扬州大学王赪胤利用NMT在Sensors and Actuators B上发表了标题为Voltammetric
simultaneous ion flux measurements platform. for Cu2+, Pb2+ and Hg2+
near rice root surface: Utilizing carbon nitride heterojunction film
modified carbon fiber microelectrode的研究成果。
期刊:Sensors and Actuators B
主题:水稻根表面附近Cu2+,Pb2+和Hg2+的伏安同时离子通量测量平台:利用氮化碳异质结膜修饰的碳纤维微电极
标题:Voltammetric simultaneous ion flux measurements
platform. for Cu2+, Pb2+ and Hg2+ near rice root surface: Utilizing
carbon nitride heterojunction film modified carbon fiber microelectrode
影响因子:5.667
检测指标:Cu2+、Pb2+、Hg2+流速
作者:扬州大学王赪胤
英文摘要
Developing an available analysis platform. for
simultaneous heavy metal ion flux measurement at trace level is urgent
for understanding the mechanisms of phytoremediation.
Herein, oxygenous functionalized carbon nitride
nanosheets assembled porous films on multi-walled carbon nanotube formed
nano frameworks was firstly prepared on a carbon fiber disk
microelectrode by an advanced drop-casting method. The as-prepared
electrode shows low detection limit (The 1.0 × 10−13 mol L−1 for Cu2+,
1.8 × 10−11 mol L−1 for Pb2+ and 8.0 × 10−12 mol L−1 for Hg2+),
acceptable linear range (6.6 × 10−12 ∼ 8.5 × 10−6 mol L−1 for Cu2+, 8.1 ×
10−10 ∼ 8.5 × 10−6 mol L−1 for Pb2+ and 2.2 × 10−11 ∼ 8.5 × 10−6 mol
L−1 for Hg2+) and fine selectivity in simultaneous determination. The
improved accumulation ability of modifier is attributed to improved
conductivity and the porous morphology of the film, which may improve
useful rate of the chelation groups.
Based on the as-prepared electrode and a stepper
motor, the voltammetric platform. for simultaneous heavy metal ion flux
measurement at trace level is fabricated for the first time. This
platform. can be utilized for mechanism investigation of simultaneous
metal uptake on the surface of rice roots at trace level.
中文摘要(谷歌机翻)
为了了解植物修复的机理,迫切需要开发一种可用于同时进行痕量重金属离子通量测量的分析平台。
在此,首先通过先进的滴铸法在碳纤维盘微电极上制备了在多壁碳纳米管形成的纳米框架上组装多孔膜的含氧官能化的氮化碳纳米片。所制备的电极显示出较低的检测限(对于Cu2+为1.0×10-13
mol L-1,对于Pb2+为1.8×10-11 mol L-1,对于Hg2+为8.0×10-12 mol
L-1),可以接受线性范围(Cu2+为6.6×10-12〜8.5×10-6 mol L-1,Pb2+为8.1×10-10〜8.5×10-6
mol L-1和2.2×10-11〜8.5×10-6 mol
Hg2+的L-1)和同时测定的优良选择性。改性剂积累能力的提高归因于膜的导电性和多孔形态的改善,这可以提高螯合基团的有用率。
基于准备好的电极和步进电机,首次制造了用于痕量水平同时重金属离子通量测量的伏安平台。该平台可用于研究水稻根部表面微量金属同时摄取的机理。
Figure 4. (A) Photograph of the VPSIFM in
determination of heavy metal ions near root surface of rice. (B) Testing
positions of the voltammetric ion fluxes measurements near the root
surface of the rice. Measurement of fluxes (outward positive) of Cu2+,
Pb2+ and Hg2+ (error bars mean the standard error of 5 duplicate tests)
across the root tips of rice, utilizing the voltammetric platform. for
simultaneous heavy metal ion flux measurements P-CN_T60/MWCNT/CFE. Ion
flux measurement of (C) Cu2+, (D) Pb2+ and (E) Hg2+ in extracted
solution at high concentration level. Ion flux measurements of (F)
Cu2+,(G) Pb2+ and (H) Hg2+ in extracted solution at low concentration
level. (Black and white)
文章链接:
https://www.sciencedirect.com/science/article/pii/S0925400517319512?via%3Dihub#!
旭月版权所有,转载注明出处.
导入论坛收藏
分享给好友
推荐到圈子
管理
举报
TAG: