Search or ask a question

How do you identify negative ions?

Answers from top 8 papers

PDF

Open Access

More filters

Papers (8)	Insight
Journal Article•DOI Electron Affinities of the Heavy Elements R. J. Zollweg 15 May 1969-Journal of Chemical Physics 137 Citations	The results are consistent with most of the published experimental values and with those negative ions detected.
Journal Article•DOI Characteristics of heavy ion tracks in bubble detectors S.-L. Guo, L. Li, Tadayoshi Doke, Jun Kikuchi, A. Kyan, E. Yoshihira, T Kato, T. Murakami - Show less +7 more 01 Jun 2001-Radiation Measurements 17 Citations	These characteristics propose another independent way to identify heavy ions through the d N/ d X – d E/ d X relationship.
Book Chapter•DOI Strong Field Predictions for Negative Ions in Short Laser Pulses Joseph H. Eberly, Rainer Grobe - Show less +1 more 01 Jan 1993 1 Citations	These permit one to make qualitative and quantitative predictions for laboratory experiments on negative ions.
Journal Article•DOI Positive and negative analyte ion yield in matrix-assisted laser desorption/ionization revisited Franz Hillenkamp, E. Wäfler, Matthias C. Jecklin, Renato Zenobi - Show less +3 more 15 Aug 2009-International Journal of Mass Spectrometry 21 Citations	Such modifications should primarily address the formation of negative matrix and analyte ions.
Open access•Journal Article•DOI Predicting quasibound states of negative ions: La− as a test case Marianna Safronova, Marianna Safronova, Charles Cheung, M. G. Kozlov, S. E. Spielman, N. D. Gibson, C. W. Walter - Show less +6 more 15 Feb 2021-Physical Review A 9 Citations	The same approach is applicable to a wide range of negative ions.
Journal Article•DOI Calculation of the binding energy in negative ions of calcium and barium Alexander V. Glushkov, V. A. Efimov, T. V. Buyadzhi, S. V. Dan’kov, V. N. Polishchuk - Show less +4 more 01 Jan 1997-Journal of Applied Spectroscopy 1 Citations	The results obtained contribute to refinement of the available literature data for the sought negative ions.
Journal Article•DOI Calculation of binding energy in negative ions of the alkaline-earth atoms Ca and Sr Alexander V. Glushkov, S. V. Ambrosov, V. É. Orlova, S. V. Orlov - Show less +3 more 01 Sep 1996-Russian Physics Journal	The results improve the data available in the literature for these negative ions.
Journal Article•DOI Long-lived negative molecular ions of TCNQ formed by the resonant capture of electrons with above zero energies O. G. Khvostenko, L. Z. Khatymova, V. G. Lukin, R. R. Kinzyabulatov, Georgii M. Tuimedov, E. E. Tseplin, S. N. Tseplina - Show less +6 more 01 Nov 2018-Chemical Physics Letters 13 Citations	The results give more knowledge of the long-lived negative ions formation.

My columns

Related Questions

How can negative ions be used to improve the performance of laser-based AMS?4 answersNegative ions can be used to improve the performance of laser-based AMS by providing isobar suppression and enhancing the detection limit for certain isotopes. In AMS, negative ions are used in the injection stage to provide isobar suppression when the contaminating isobar does not form stable negative ions. This allows for the selective measurement of specific isotopes. Additionally, laser photodetachment of negative ions can be used as an additional isobaric selection filter in AMS. By selectively removing interfering isobars through laser-induced photodetachment, the background signal can be further suppressed, leading to improved detection limits for long-lived heavy radionuclides. This technique has been successfully implemented in the Vienna Environmental Research Accelerator (VERA) facility, where laser-photodetachment has been used to suppress the isobar 36S by 10 orders of magnitude, allowing for competitive measurements at low accelerator voltages.

Can negative ions kill coronavirus?13 answers

How do you check toothpaste ions?6 answers

How to check ions present in toothpaste?11 answers

What are uni negative ions?9 answers

Which metal has negative ions?8 answers

See what other people are reading

What afre the physical basis of electrical discharges in gases?

What factors affect the accuracy of gas temperature measurements using the lamgmiur probe in RF ICP?

The accuracy of gas temperature measurements using a Langmuir probe in RF ICP is influenced by various factors. These include the presence of dust in the plasma, which can lead to temperature measurement uncertainties. Additionally, in high-density plasmas, traditional methods for interpreting Langmuir probe characteristics may not be valid, requiring new parametrization and iteration schemes for rapid data analysis. Furthermore, the ac-coupling effect in pulsed discharges can result in misestimation of plasma parameters, particularly affecting the determination of plasma density in the early afterglow. Employing advanced techniques like the LSTM approach can enhance the accuracy and speed of plasma probe diagnosis, providing more precise electron density and temperature measurements.What is the maximal density for electron cyclotron resonance heating?

The maximal density for electron cyclotron resonance heating can vary depending on the specific experimental setup and conditions. In the context of utilizing millimeter wavelength gyrotron radiation for plasma heating, high plasma densities are crucial for achieving efficient ionization. Additionally, in experiments conducted at the Budker Institute, high electron temperatures were achieved at densities around 10 cm^-3, showcasing the potential for high-density operation in fusion-relevant experiments. Furthermore, the use of O-2 mode scheme with holographic mirrors for beam control and absorption improvement in electron cyclotron resonance heating at ASDEX Upgrade indicates a focus on high plasma densities for future experiments. Therefore, the maximal density for electron cyclotron resonance heating can be optimized through various techniques and experimental setups to enhance efficiency and performance.How are calculations for BAC derived scholar?

Calculations for BaC are derived using various methods such as ab initio modeling, density functional theory, and cluster variation method. The equilibrium structure and properties of BCC-iron are modeled using the WIEN2k software package with LAPW method and PBE-GGA approximation. The tetrahedron approximation of the Cluster Variation Method is employed to calculate BCC phase diagrams by varying nearest- and next-nearest neighbor interactions. Ab initio derived thermodynamic properties of ferromagnetic bcc iron consider vibrational, electronic, and magnetic contributions, showing agreement with experimental data up to the phase-transition temperature. An ab initio approach with effective core potentials and configuration interaction is used to determine the potential energy curves and spectroscopic constants of BaCs, including the influence of relativistic effects on dipole moments.What is the current challenges faced with heat pipe based thermal management using lithium batteries?

The current challenges faced with heat pipe-based thermal management systems using lithium batteries include the need for effective temperature control to enhance battery performance and lifespan under extreme operational conditions. Additionally, the integration of heat pipes with conventional cooling systems poses a challenge in achieving low power consumption and efficient heat transfer for electric vehicles/hybrid electric vehicles (EVs/HEVs). Furthermore, the utilization of heat pipes in battery thermal management systems requires exploration of combining them with phase change materials (PCMs) and nanofluids to enhance temperature distribution and reduce battery temperature uniformly. Overall, the challenges lie in optimizing heat pipe technology to ensure safe and reliable operation of lithium batteries in EVs/HEVs, considering factors like temperature sensitivity and thermal performance.Impacts refers to?

"Impacts" can refer to various concepts based on the context in which it is used. In the educational realm, "impacts" in the context of Co-Creation Learning aim to ensure that knowledge is quickly absorbed and reflected upon to produce tangible effects in reality, particularly in professional development and work performance. In scientometrics, "impact" was initially introduced by E. Garfield in 1955 and has been analyzed to understand its definitions and perceptions, often being associated with influence, strong impressions, pertinence, or technical indicators. In design education, "impact" is explored within the framework of socially and environmentally responsive pedagogies, focusing on the consequences of design practices on complex systems and societies, with students interpreting the term diversely, reflecting an evolving understanding of sustainability and design justice. Additionally, in materials science, the term "IMPACT" is used to describe an experimental facility studying the modification of surfaces under energetic particle beams, with capabilities for in-depth characterization and analysis of compositional changes in materials.How maldi tof ms is clinically useful in polymicrobial spondylodiscitis?

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) is clinically useful in polymicrobial spondylodiscitis due to its ability to rapidly and accurately identify a wide range of microorganisms. MALDI-TOF MS can efficiently detect bacteria, fungi, and viruses, aiding in the precise diagnosis of polymicrobial infections. This technology allows for the direct identification of microorganisms from various samples, including blood and cerebrospinal fluid, without the need for prior culture, thereby expediting the diagnostic process. By providing comprehensive information on microbial species, toxins, and antibiotic resistance, MALDI-TOF MS enhances the understanding of polymicrobial infections, facilitating more effective treatment strategies.How does an Arduino-based water detection system work?

An Arduino-based water detection system operates by utilizing various sensors to monitor water quality and levels. The system can detect floods early to save lives, monitor water quality parameters like Total Dissolved Solids (TDS) and pH to determine water quality, and even detect leakages in pipelines for domestic water supply. By integrating sensors such as ultrasonic sensors for water level detection, TDS sensors for measuring dissolved solids, pH sensors for hydrogen ion concentration, and water sensors for leak detection, the Arduino system can provide real-time data on water conditions. This data is then processed by the microcontroller and transmitted for display through web or mobile applications, ensuring efficient monitoring and control of water-related issues.How does temperature affect equilibrum of acid base reaction?

Temperature significantly influences the equilibrium of acid-base reactions. As per studies, increasing temperature can cause shifts in ionization constants of acids and bases, favoring smaller volumes and greater entropies. For instance, in the case of L-glutamine, thermodynamic parameters like pK change with temperature variations, affecting the stepwise dissociation process. Moreover, the behavior of pH indicators like m-Cresol Purple in weakly alkaline solutions at elevated temperatures provides insights into acid-base equilibria in geochemical systems. Additionally, equilibrium constants for the dissociation of various compounds in water have been measured at different temperatures, showcasing the impact of temperature on thermodynamic functions like ΔG°, ΔH°, and ΔS° in acid-base reactions.What are the different possible anaylsis or characterization methods for hard carbon materials for lithium ion batteries?

Various analysis and characterization methods for hard carbon materials used in lithium-ion batteries include FTIR, 13C NMR, Raman spectroscopy, BET surface area analysis, and other characterization tools. Additionally, ex situ Raman spectroscopy and impedance spectroscopy are employed to investigate the structural and interfacial properties of hard carbon matrices in silicon-based anodes. For activated hard carbons derived from waste biomasses, characterization techniques such as SEM, XRD, and Raman spectroscopy are utilized to evaluate the effects of activation processes. Moreover, the preparation and characterization of novel core-shell structure hard carbon/Si-carbon composites involve assessing their electrochemical performance as anode materials, highlighting the importance of shell coatings and composite structures for enhanced battery performance.What is the relationship between the interaction of X-rays with matter and the Compton effect?

The interaction of X-rays with matter involves various phenomena depending on the energy and nature of the material. X-rays can undergo Compton scattering, where an X-ray photon scatters off an electron, leading to a shift in wavelength. This effect is crucial in probing electron momentum distributions in both gas-phase and condensed-matter samples. Additionally, the sensitivity of X-ray scattering methods is not influenced by the sample's surface quality and increases with decreasing atomic number of impurities, making it valuable for chemical and phase analysis. The classical wave theory quantitatively describes X-ray interactions, linking scattering and absorption through formalisms like the Kramers-Kronig relations. Overall, the Compton effect plays a significant role in understanding X-ray interactions with matter, especially in high-intensity scenarios where ionization effects become prominent.