Related Experiment Video
Updated: Jul 8, 2025
16:11
Thermochemical Studies of NiII and ZnII Ternary Complexes Using Ion Mobility-Mass Spectrometry
Published on: June 8, 2022
2.3K
Correction: Extracting accurate information from triplet-triplet annihilation upconversion data with a
Abhishek Kalpattu1, Tristan Dilbeck2, Kenneth Hanson2
1Department of Materials Science and Engineering, University of Maryland, College Park, MD 20817, USA.
Physical Chemistry Chemical Physics : PCCP
|December 14, 2023
Summary
This correction refines the kinetic model for triplet-triplet annihilation upconversion, improving the accuracy of extracted data. The updated model ensures better understanding of photophysical processes in upconversion systems.
Area of Science:
- Photochemistry
- Physical Chemistry
- Chemical Physics
Context:
- Triplet-triplet annihilation upconversion (TTA-UC) is a crucial photophysical process.
- Accurate data extraction from TTA-UC experiments is essential for understanding and optimizing these systems.
- Previous kinetic models may have limitations in accurately representing experimental data.
Purpose:
- To correct and refine the mass-conserving kinetic model previously presented.
- To enhance the accuracy of information extracted from triplet-triplet annihilation upconversion data.
- To address specific issues identified in the original publication.
Summary:
- This work provides a correction to the kinetic model used for analyzing triplet-triplet annihilation upconversion data.
- The revised model incorporates mass conservation principles more accurately.
- The updated model leads to a more precise interpretation of experimental results.
Impact:
- Improved understanding of triplet-triplet annihilation upconversion mechanisms.
- More reliable data analysis for researchers in photochemistry and materials science.
- Foundation for further advancements in TTA-UC applications, such as in solar cells and photodynamic therapy.
Related Concept Videos
01:19Mass Analyzers: Common Types
615
The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
615
01:21Tandem Mass Spectrometry
1.0K
Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and signal-to-noise ratio for the analyte. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.
Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called collision-induced...
Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called collision-induced...
1.0K
01:13Mass Analyzers: Overview
683
The mass analyzer is a crucial component of the mass spectrometer. In the ionization chamber, the vaporized sample is bombarded with a high-energy electron beam to generate a radical cation and further fragment into neutral molecules, radicals, and cations. A series of negatively charged accelerator plates accelerate the cations into the mass analyzer. The mass analyzer separates ions according to their mass-to-charge (m/z) ratios and then directs them to the detector. The common types of mass...
683
01:12Double Resonance Techniques: Overview
214
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
Spin decoupling is usually achieved by...
214
01:33Peptide Identification Using Tandem Mass Spectrometry
6.5K
Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
6.5K
01:15High-Resolution Mass Spectrometry (HRMS)
1.4K
The resolution of a mass spectrometer depends on the efficiency of separating ions with different ion masses. The mass of an atom is approximated to the sum of the masses of protons and neutrons inside, considering the masses of protons and neutrons as equal. However, the masses of the proton (1.6726 × 10−24 g) and neutron (1.6749 × 10−24 g) are not truly equal. There is a minor error in the expression of atomic masses relative to the simplest atom of hydrogen. For...
1.4K