A bi-enzymatic whole cell conductometric biosensor for heavy metal ions and pesticides detection in water samples

2005 ◽  
Vol 21 (2) ◽  
pp. 273-281 ◽  
Author(s):  
C CHOUTEAU ◽  
S DZYADEVYCH ◽  
C DURRIEU ◽  
J CHOVELON
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Water Samples ◽  
Heavy Metal Ions ◽  
Whole Cell ◽  
Conductometric Biosensor

An Integrated Whole-Cell Detection Platform for Heavy Metal Ions

2020 ◽  
Vol 20 (9) ◽  
pp. 4959-4967 ◽  
Author(s):  
Chiye Zhang ◽  
Saika Siddiqui ◽  
Pablo Morales Navarrete ◽  
Jie Yuan
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Cell Detection ◽  
Whole Cell

Alkaline phosphatase conductometric biosensor for heavy-metal ions determination

IRBM ◽  
2008 ◽  
Vol 29 (2-3) ◽  
pp. 136-140 ◽  
Author(s):  
A.L. Berezhetskyy ◽  
O.F. Sosovska ◽  
C. Durrieu ◽  
J.-M. Chovelon ◽  
S.V. Dzyadevych ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Alkaline Phosphatase ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Conductometric Biosensor

Novel conductometric biosensor based on three-enzyme system for selective determination of heavy metal ions

2012 ◽  
Vol 83 ◽  
pp. 25-30 ◽  
Author(s):  
O.O. Soldatkin ◽  
I.S. Kucherenko ◽  
V.M. Pyeshkova ◽  
A.L. Kukla ◽  
N. Jaffrezic-Renault ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Enzyme System ◽  
Selective Determination ◽  
Conductometric Biosensor

scholarly journals Magnetic solid-phase extraction based on multi-walled carbon nanotubes combined ferroferric oxide nanoparticles for the determination of five heavy metal ions in water samples by inductively coupled plasma mass spectrometry

2021 ◽  
Author(s):  
Ning Zhao ◽  
Yuwei Bian ◽  
Xinyi Dong ◽  
Xun Gao ◽  
Longshan Zhao
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Water Samples ◽  
Inductively Coupled Plasma ◽  
Heavy Metal Ions ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Inductively Coupled ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Abstract An excellent magnetic multi-walled carbon nanotubes (MMWCNT) containing carboxyl material modified with ferroferric oxide (Fe3O4) nanoparticles was synthesized as the adsorbent for magnetic solid-phase extraction (MSPE) of five heavy metal ions (Pb2+, Cu2+, Co2+, Cd2+, Cr4+) in water samples followed by on-line inductively coupled plasma mass spectrometry (ICP-MS) detection. The characteristics of the adsorbent were analyzed using Fourier transform infrared spectroscopy (FT-IR), Scanning electron microscope (SEM), and Vibrating sample magnetometer (VSM). Some factors affecting extraction efficiency including pH of sample solution, the amount of adsorbent, extraction method and time, concentration and volume of desorption solvent, desorption time and evaluation of coexisting ions were optimized. Under the optimum conditions, good linearity (r ≥ 0.9951) was obtained within the range of0.1–50.0 ng·mL−1. The limits of detection (LODs) and limits of quantification (LOQs) were 4.0–25.0 ng·L−1 and 15.0–80.0 ng·L−1, respectively. And satisfactory recoveries of five heavy metal ions ranged from 81.11% to 105.53% were acquired, and the relative standard deviations (RSDs) were no more than 6.05%. The MMWCNT synthesized had strong adsorption force for the five investigated heavy metal ions, respectively. Hence, the proposed method was so suitable and sensitive that it can be applied to the determination of trace analysis of heavy metals in water samples.

Sign in / Sign up

Export Citation Format

Share Document