Facile and green fabrication of size-controlled AuNPs/CNFs hybrids for the highly sensitive simultaneous detection of heavy metal ions

2016 ◽  
Vol 196 ◽  
pp. 422-430 ◽  
Author(s):  
Bin Zhang ◽  
JiaDong Chen ◽  
Han Zhu ◽  
TingTing Yang ◽  
MeiLing Zou ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Simultaneous Detection ◽  
Highly Sensitive ◽  
Size Controlled

A highly-sensitive electrochemical sensor for the simultaneous detection of Cd2+ and Pb2+ using liquid phase-exfoliated graphene

2014 ◽  
Vol 6 (15) ◽  
pp. 5760-5765 ◽  
Author(s):  
Guishen Liu ◽  
Jianpeng Chen ◽  
Xiaodong Hou ◽  
Wensheng Huang
Keyword(s):  
Heavy Metal ◽  
Liquid Phase ◽  
Metal Ions ◽  
Electrochemical Sensor ◽  
Analytical Methods ◽  
Heavy Metal Ions ◽  
Simultaneous Detection ◽  
Toxic Heavy Metal ◽  
Exfoliated Graphene ◽  
Highly Sensitive

It is quite important to develop sensitive and simple analytical methods for the detection of toxic heavy metal ions, such as Cd2+ and Pb2+.

scholarly journals Novel nanoscale Yb-MOF used as highly efficient electrode for simultaneous detection of heavy metal ions

2021 ◽  
Vol 56 (13) ◽  
pp. 8172-8185
Author(s):  
Manh B. Nguyen ◽  
Dau Thi Ngoc Nga ◽  
Vu Thi Thu ◽  
Benoît Piro ◽  
Thuan Nguyen Pham Truong ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Simultaneous Detection ◽  
Highly Efficient

Simultaneous Enrichment and On-line Detection of Low-Concentration Copper, Cobalt, and Nickel Ions in Water by Near-Infrared Diffuse Reflectance Spectroscopy Combined with Chemometrics

2017 ◽  
Vol 100 (2) ◽  
pp. 560-565 ◽  
Author(s):  
Jibran Iqbal ◽  
Yiping Du ◽  
Fares Howari ◽  
Mahmoud Bataineh ◽  
Nawshad Muhammad ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Fluidized Bed ◽  
Relative Error ◽  
Heavy Metal Ions ◽  
Diffuse Reflectance ◽  
Diffuse Reflectance Spectroscopy ◽  
Simultaneous Detection ◽  
Quantitative Detection ◽  
On Line

Abstract Sensitive detection of heavy metal ions in water is of great importance considering the effects that heavy metals have on public health. A developed fluidized bed enrichment technique was used to concentrate and detect low concentrations of Cu2+, Co2+, and Ni2+ in water samples by near-IR diffuse reflectance (NIDR) spectroscopy (NIDRS) directly without using any chemicals or reagents. The NIDR spectraof adsorbent were measured on-line, and quantitative detection was achieved by applying a built partial least-squares chemometric model. Sensitivity and accuracy was improved significantly because large-volume mixture solutions were used in the enrichment process. Root mean square error of cross-validation values for Cu2+, Co2+, and Ni2+ were 0.29, 0.41, and 0.35 μg/mL, respectively, with mean relative error values in the acceptable range of 6.56–10.27%. This study confirms the potential application of fluidized bed enrichment combined with NIDRS and chemometrics for the simultaneous detection of trace heavy metal ions in water, with low relative error.

Simultaneous Electrochemical Detection of Multiple Heavy-Metal Ions Based on Furfural/Reduced Graphene Oxide Composites

2021 ◽  
Author(s):  
Xiaoyun Xu ◽  
Xiaoyi Lv ◽  
Fei Tan ◽  
Yanping Li ◽  
Chao Geng ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Metal Ions ◽  
Reduced Graphene Oxide ◽  
Heavy Metal Ions ◽  
Simultaneous Detection ◽  
Reduced Graphene ◽  
The Matrix ◽  
One Step ◽  
Oxide Composites

Abstract An efficient and sensitive electrochemical sensor for simultaneous detection of heavy metal ions was developed based on furfural/reduced graphene oxide composites (FF/RGO). The preparation of FF/RGO were performed through a one-step high-pressure assisted hydrothermal treatment, which is recommended as a green, convenient, and efficient way for the reduction of graphene oxide and the production of FF/RGO composites. RGO not only serves as the skeleton for furfural loading but also improves the conductivity of the composites in the matrix. FF/RGO with large specific surface area and abundant oxygen-containing functional groups was used to provide more binding sites for the effificient adsorption of heavy-metal ions due to the interaction between hydrophilic groups (-COOH, -OH, and -CHO) and metal cations. The developed sensor showed identifiable electrochemical response toward the heavy metal ions separately and simultaneously, exhibiting superior stability, outstanding sensitivity, selectivity and excellent analytical performance. Impressively, the sensor developed in this experiment has been successfully applied to the simultaneous determination of various heavy metal ions in actual samples, which has definitely exhibited a promising prospect in practical application.

Straw-sheaf-like terbium-based coordination polymer architectures: microwave-assisted synthesis and their application as selective luminescent probes for heavy metal ions

2015 ◽  
Vol 39 (4) ◽  
pp. 2973-2979 ◽  
Author(s):  
Mengmeng Shi ◽  
Chenghui Zeng ◽  
Lei Wang ◽  
Zhiwen Nie ◽  
Yongxia Zhao ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Coordination Polymer ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Microwave Assisted Synthesis ◽  
Luminescent Probes ◽  
Microwave Assisted ◽  
Highly Sensitive ◽  
Polymer Architectures

Terbium-based coordination polymer architectures were successfully synthesized via a microwave heating approach and they showed highly sensitive and selective luminescence quenching to Pb2+ in aqueous solution.

Oligonucleotide-based fluorogenic sensor for simultaneous detection of heavy metal ions

2012 ◽  
Vol 36 (1) ◽  
pp. 174-178 ◽  
Author(s):  
Changlong Hao ◽  
Liguang Xua ◽  
Changrui Xing ◽  
Hua Kuang ◽  
Libing Wang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Simultaneous Detection

Flow Cytometry Based Detection of MRD in Bone Marrow of Patients with Multiple Myeloma: A Comparison Between Fluorescent-Based Cytometry Versus Cytof

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 4195-4195 ◽  
Author(s):  
Arnab Ghosh ◽  
Nicole Carreau ◽  
Alessandra Moscatello ◽  
Adeeb Rahman ◽  
Jingjing Qi ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Multiple Myeloma ◽  
Flow Cytometry ◽  
Metal Ions ◽  
Research Funding ◽  
Heavy Metal Ions ◽  
Residual Disease ◽  
Response To Therapy ◽  
Institutional Research ◽  
Highly Sensitive

Abstract The introduction of novel agents for the treatment of multiple myeloma (MM) has shifted the emphasis towards achieving a molecular complete remission (CR). Traditional methods to detect malignant plasma cells (PC) in minimal residual disease (MRD) utilize multicolor flow cytometry (MFC) to detect aberrant phenotypes. However fluorescent-based MFC assays are limited by the number of markers, difficulty in standardization of assays and overlap of signal between the fluorescent channels. These limitations can be overcome by cyTOF, a flow cytometry assay based on time-of-flight mass spectrometry using antibodies labeled with heavy-metal ions, permitting simultaneous assessment of large panels of markers. We have developed a novel highly sensitive mass cytometry protocol for the detection of MRD. BM from 5 MM patients and 1 non-myeloma control were RBC-lysed and labeled with MM markers for MFC and cyTOF. cyTOF is a flow cytometry based on mass spectometry where antibodies are labeled with heavy-metal ions, permitting utilization of more markers without concern for spillover. The MFC panel included CD38, CD138, CD45, CD56, CD19, CD117. Labeled cells for MFC were acquired by BD LSR Fortessa.. The panel for cyTOF comprised markers for cells across the hematopoietic spectrum and those specific for MM. Labeled cells acquired with cyTOF were analyzed using SPADE. Limits of detection (LOD) and quantification (LOQ) for MFC are based on prior reports. The results were compared with an independent commercial MFC-based assay (Genoptix). Malignant PC could be detected by MFC and cyTOF based assasys (See Figure). We were able to detect MRD in three subjects that had no detectable disease by an independent commercial MFC based assay (Genoptix). This can be attributed to acquiring at least 1x106 for our assays leading to a lower LOD and LOQ (greater sensitivity). Using cyTOF and SPADE, we could detect MRD in 4/5 patients. Overall our panel with cyTOF has a lower LOD than MFC for detection of MRD. Early detection of MRD in MM patients using a highly sensitive flow cytometry like cyTOF will help in risk stratification, predicting relapse and studying response to therapy. Disclosures Chari: Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Millennium/Takeda: Consultancy, Research Funding; Onyx: Consultancy, Research Funding; Array Biopharma: Consultancy, Other: Institutional Research Funding, Research Funding; Biotest: Other: Institutional Research Funding; Novartis: Consultancy, Research Funding. Jagannath:Bristol Myers Squibb: Honoraria; Janssen: Honoraria; Merck: Honoraria; Novartis: Honoraria; Celgene: Honoraria.

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