scholarly journals Unprecedented Ultralow Detection Limit of Amines using a Thiadiazole-Functionalized Zr(IV)-Based Metal–Organic Framework

2019 ◽  
Vol 141 (18) ◽  
pp. 7245-7249 ◽  
Author(s):  
Arijit Mallick ◽  
Ahmed M. El-Zohry ◽  
Osama Shekhah ◽  
Jun Yin ◽  
Jiangtao Jia ◽  
...  
Keyword(s):  
Detection Limit ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Organic Framework

A donor–acceptor liganded metal–organic framework showcases the hydrogen-bond-enhanced sensing of N-heterocyclic explosives

2021 ◽  
Vol 9 (36) ◽  
pp. 12086-12093
Author(s):  
Junjie Wang ◽  
Yao Cheng ◽  
Jie Zhou ◽  
Weihua Tang
Keyword(s):  
Hydrogen Bond ◽  
Detection Limit ◽  
Fluorescence Quenching ◽  
Metal Organic Framework ◽  
Donor Acceptor ◽  
Metal Organic ◽  
Organic Framework

Zn(ii)-based MOF for detecting FOX-7 like explosives is designed via hydrogen-bond-intensified host–guest interactions. The crystalline MOF achieves 0.14 ppm detection limit and a highest fluorescence quenching constant of 3.22 × 104 M−1.

scholarly journals A magnetic nanoscale metal–organic framework (MNMOF) as a viable fluorescence quencher material for ssDNA and for the detection of mercury ions via a novel quenching–quenching mechanism

RSC Advances ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 3705-3714 ◽  
Author(s):  
Muppidathi Marieeswaran ◽  
Perumal Panneerselvam
Keyword(s):  
Detection Limit ◽  
Metal Organic Framework ◽  
Mercury Ions ◽  
Quenching Mechanism ◽  
Metal Organic ◽  
Fluorescence Quencher ◽  
Organic Framework

Here, we propose a magnetic nanoscale metal–organic framework as a novel quenching material and reveal its quenching–quenching mechanism. It sensitively and selectively binds Hg(ii) and a detection limit of 8 nM.

Immobilization of ssDNA on a metal–organic framework derived magnetic porous carbon (MPC) composite as a fluorescent sensing platform for the detection of arsenate ions

The Analyst ◽  
2019 ◽  
Vol 144 (9) ◽  
pp. 3111-3118 ◽  
Author(s):  
Marieeswaran Muppidathi ◽  
Panneerselvam Perumal ◽  
Ravikumar Ayyanu ◽  
Sivanesan Subramanian
Keyword(s):  
Detection Limit ◽  
Porous Carbon ◽  
Metal Organic Framework ◽  
Fluorescent Sensing ◽  
Sensing Platform ◽  
Metal Organic ◽  
Efficient Recognition ◽  
Organic Framework

In this work, we fabricated a metal–organic framework derived magnetic porous carbon (MPC) and with ssDNA achieved specific and efficient recognition of harmful arsenate ions. The detection limit was achieved at 630 pM.

The synergistic effect of Co/Ni in ultrathin metal–organic framework nanosheets for the prominent optimization of non-enzymatic electrochemical glucose detection

2020 ◽  
Vol 8 (5) ◽  
pp. 1008-1016 ◽  
Author(s):  
Haihan Zou ◽  
Dongyan Tian ◽  
Chao Lv ◽  
Songmei Wu ◽  
Guanxuan Lu ◽  
...  
Keyword(s):  
Detection Limit ◽  
Synergistic Effect ◽  
Electrode Material ◽  
Metal Organic Framework ◽  
High Sensitivity ◽  
Glucose Sensing ◽  
Glucose Detection ◽  
Metal Organic ◽  
Excellent Selectivity ◽  
Organic Framework

Co–Ni ultrathin metal organic framework nanosheets exhibited extremely high sensitivity, wide linear range, low detection limit and excellent selectivity as a glucose sensing electrode material.

A luminescent metal–organic framework for highly selective sensing of nitrobenzene and aniline

RSC Advances ◽  
2016 ◽  
Vol 6 (91) ◽  
pp. 87945-87949 ◽  
Author(s):  
Xin-Lei Huang ◽  
Lin Liu ◽  
Ming-Liang Gao ◽  
Zheng-Bo Han
Keyword(s):  
Detection Limit ◽  
Fluorescent Sensor ◽  
Metal Organic Framework ◽  
Selective Detection ◽  
Metal Organic ◽  
Organic Framework

A luminescent metal–organic frameworkgea-MOF-1, can act as a fluorescent sensor for sensitive and selective detection of nitrobenzene and aniline. More importantly, the detection limit of nitrobenzene is on the 5–60 ppm scale.

Post-synthetic modification of a Tb-based metal–organic framework for highly selective and sensitive detection of metal ions in aqueous solution

2019 ◽  
Vol 43 (26) ◽  
pp. 10232-10236 ◽  
Author(s):  
Mengjie Huangfu ◽  
Xueqin Tian ◽  
Shuang Zhao ◽  
Pengyan Wu ◽  
Huacong Chu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Detection Limit ◽  
Metal Ions ◽  
Metal Organic Framework ◽  
Sensitivity Enhancement ◽  
Sensitive Detection ◽  
Metal Organic ◽  
Organic Framework

Post-synthetic modification of a MOF led to selectivity and sensitivity enhancement for Fe3+ detection in water with a detection limit of 70 nM.

A “turn-on” Cr3+ ion probe based on non-luminescent metal-organic frameworkNew strategy to prepare recovery probe

2021 ◽  
Author(s):  
Pei-Pei Zhang ◽  
Bo Song ◽  
Zhongyi Li ◽  
Jian-Jun Zhang ◽  
Ai-Yun Ni ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Detection Limit ◽  
Metal Organic Framework ◽  
Turn On ◽  
Low Detection Limit ◽  
Ion Probe ◽  
New Strategy ◽  
Metal Organic ◽  
Organic Framework

Highly selective and sensitive, and low detection limit probes that can work in aqueous solution are of great significance for detection. Present here is a unique metal organic framework of...

scholarly journals Chromium-based metal organic framework for pipette tip micro-solid phase extraction: an effective approach for determination of methyl and propyl parabens in wastewater and shampoo samples

BMC Chemistry ◽  
2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Massoud Kaykhaii ◽  
Sayyed Hossein Hashemi ◽  
Fariba Andarz ◽  
Amin Piri ◽  
Ghasem Sargazi ◽  
...  
Keyword(s):  
Detection Limit ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Metal Organic Framework ◽  
Phase Extraction ◽  
Propyl Paraben ◽  
Metal Organic ◽  
Pipette Tip ◽  
Organic Framework

Abstract Background A chromium-based metal organic framework was synthesized and employed as an efficient sorbent for pipette tip micro-solid phase extraction and preconcentration of parabens from wastewater and shampoo samples up to sub-ppb level before their spectrophotometric analysis. Results Factors affecting preconcentration including volume and type of solvent, amount of sorbent, number of extraction, and volume and pH of samples were optimized employing one-variable-at-a-time and response surface methodology. Obtained analytical characteristics of the method proves its usefulness for analysis of real samples. Linear range of the method for parabens was 1.0–200.0 μg/L. Detection limit of the protocol was 0.24 µg/L for propyl paraben and 0.25 µg/L for methyl paraben. Reproducibility of the protocol defined as % RSD was better than 5.78%. Synthesized adsorbent can be re-used for at least 20 extractions. Conclusion The method showed a good detection limit and precision for determination of methyl- and propyl-paraben in wastewater and shampoo samples.

Iron oxide@mesoporous carbon architectures derived from an Fe(ii)-based metal organic framework for highly sensitive oxytetracycline determination

2017 ◽  
Vol 5 (36) ◽  
pp. 19378-19389 ◽  
Author(s):  
Yingpan Song ◽  
Fenghe Duan ◽  
Shuai Zhang ◽  
Jia-Yue Tian ◽  
Zhihong Zhang ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Detection Limit ◽  
Mesoporous Carbon ◽  
Metal Organic Framework ◽  
Low Detection Limit ◽  
Highly Sensitive ◽  
Metal Organic ◽  
Organic Framework

An Fe-MOF-derived Fe3O4@mC-based aptasensor was constructed to sensitively and selectivity detect trace oxytetracycline and a low detection limit was obtained.

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