Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Photoluminescence: Applications01:14

Photoluminescence: Applications

1.2K
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
1.2K
Gas Chromatography: Types of Detectors-II01:19

Gas Chromatography: Types of Detectors-II

1.4K
In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...
1.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Screening and ratio-guided assembly of lipid-degrading bacteria for enhanced oil degradation in lipid-rich water.

Environmental technology·2026
Same author

Therapeutic effects of myocardin-related transcription factor A (MRTF-A) knockout on experimental mice with nonalcoholic steatohepatitis induced by high-fat diet.

Human & experimental toxicology·2021
Same author

Imaging and Inhibiting: A Dual Function Molecular Flare for Cancer Cells.

Analytical chemistry·2019
Same author

Coupling enhancement of Chromium(VI) bioreduction in groundwater by phosphorus minerals.

Chemosphere·2019
Same author

Synergistic removal of tylosin/sulfamethoxazole and copper by nano-hydroxyapatite modified biochar.

Bioresource technology·2019
Same author

Effects of dietary calcium and phosphorus levels and supplementation of 25-hydroxycholecalciferol on performance and bone properties of broiler starters.

Archives of animal nutrition·2019

Related Experiment Video

Updated: Mar 24, 2026

Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing
08:12

Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing

Published on: March 13, 2013

13.3K

A Quantum Dot Fluorescence Sensor System Design for Hg²⁺ Trace Detection.

Wei Luo, Xin-hua Zeng, Miao Li

    Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
    |March 17, 2016
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a low-cost, portable sensor for detecting trace mercury (Hg²⁺) ions using quantum dot fluorescence quenching. The device enables rapid field testing with high sensitivity and selectivity.

    More Related Videos

    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
    12:57

    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

    Published on: October 13, 2017

    9.6K
    Compact Quantum Dots for Single-molecule Imaging
    17:14

    Compact Quantum Dots for Single-molecule Imaging

    Published on: October 9, 2012

    18.8K

    Related Experiment Videos

    Last Updated: Mar 24, 2026

    Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing
    08:12

    Synthesis and Operation of Fluorescent-core Microcavities for Refractometric Sensing

    Published on: March 13, 2013

    13.3K
    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
    12:57

    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

    Published on: October 13, 2017

    9.6K
    Compact Quantum Dots for Single-molecule Imaging
    17:14

    Compact Quantum Dots for Single-molecule Imaging

    Published on: October 9, 2012

    18.8K

    Area of Science:

    • Analytical Chemistry
    • Materials Science
    • Environmental Science

    Background:

    • Traditional mercury (Hg²⁺) ion detection methods rely on bulky lab equipment, hindering rapid field analysis.
    • Developing portable and cost-effective sensors is crucial for on-site environmental monitoring.

    Purpose of the Study:

    • To design and validate a compact, low-cost reflective sensor for trace Hg²⁺ detection.
    • To utilize quantum dot fluorescence quenching for sensitive and selective mercury analysis.

    Main Methods:

    • A reflective sensor was developed, integrating a fluorescence sensing module (laser, collimator, photo-detector) and a signal processing module.
    • Quantum dot fluorescence quenching was employed to detect Hg²⁺ ions.
    • A Linux embedded system displayed results on a QT interface.

    Main Results:

    • The sensor demonstrated a linear response for Hg²⁺ concentrations from 15.0 x 10⁻⁹ to 1.8 x 10⁻⁶ mol·L⁻¹ with R² = 0.98926.
    • The sensor exhibited good selectivity, with minimal interference from Ca²⁺, Mn²⁺, and Pb²⁺ ions.
    • A rapid response time of 35 seconds and good repeatability were achieved.

    Conclusions:

    • The developed sensor is a cost-effective and portable solution for rapid field testing of trace Hg²⁺.
    • Its performance indicates significant potential for on-site environmental mercury monitoring applications.