Overview of an Inductively Coupled Plasma (Icp) System

Warra, AA; LO, JIMOH W

doi:10.9735/0975-3699.3.2.41-48

Cited by 7 publications

(5 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Ultraviolet-visible (Uv-vis) Spectroscopy For Determination ...mentioning

confidence: 99%

“…1.3.4 Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) for Determination of Total Phosphorus ICP-OES is a combination of sample preparation and detection (Harris, 2010;Skoog et al, 2014;Warra & Jimoh, 2011). The sample is nebulized then vaporized and atomized through heating (5,500 to 6,500 K; 5227 to 6227°C) by plasma (Harris, 2010;Skoog et al, 2014;Warra & Jimoh, 2011). Atomized samples will contain high-energy electrons which reach back down to the ground state emitting a characteristic wavelength specific to each element (Harris, 2010;Skoog et al, 2014;Warra & Jimoh, 2011).…”

Section: Ultraviolet-visible (Uv-vis) Spectroscopy For Determination ...mentioning

confidence: 99%

“…The sample is nebulized then vaporized and atomized through heating (5,500 to 6,500 K; 5227 to 6227°C) by plasma (Harris, 2010;Skoog et al, 2014;Warra & Jimoh, 2011). Atomized samples will contain high-energy electrons which reach back down to the ground state emitting a characteristic wavelength specific to each element (Harris, 2010;Skoog et al, 2014;Warra & Jimoh, 2011). The plasma is created by heating high purity argon gas through a quartz torch using a high-frequency induction coil that bombards argon atoms with electrons to induce ionization (Harris, 2010;Skoog et al, 2014;Warra & Jimoh, 2011).…”

Section: Ultraviolet-visible (Uv-vis) Spectroscopy For Determination ...mentioning

confidence: 99%

“…Atomized samples will contain high-energy electrons which reach back down to the ground state emitting a characteristic wavelength specific to each element (Harris, 2010;Skoog et al, 2014;Warra & Jimoh, 2011). The plasma is created by heating high purity argon gas through a quartz torch using a high-frequency induction coil that bombards argon atoms with electrons to induce ionization (Harris, 2010;Skoog et al, 2014;Warra & Jimoh, 2011). The torch is protected by coolant gas to prevent overheating and to control the plasma source (Harris, 2010).…”

Section: Ultraviolet-visible (Uv-vis) Spectroscopy For Determination ...mentioning

confidence: 99%

See 3 more Smart Citations

Concentration and Distribution of Phosphorus Species in Marginal Land Soils

2024

Preprint

View full text Add to dashboard Cite

This research focused on soil leachable and total P from three selected Ontario fields (London, Simcoe and Ottawa), of which one is agricultural land (London) as a reference in 2019. Leachable P was obtained through leaching soil with an acidified water solution and analyzed using colorimetric method. Total P was obtained through microwave acid digestion and analyzed using ICP-OES. There was little to no statistical difference in both P fractions when comparing between urea fertilizer applications, sorghum hybrids or over sorghum growth periods. Ottawa and Simcoe soil leachable P has variable correlation with the total P in each respective depth but didn’t match the correlation found in London soil. Leachable P was strongly related to biomass yield in London and urea applied Simcoe field but not in Ottawa field. The correlation difference between Ottawa and Simcoe soil can be due to tile drainage and soil textures allowing different P movement.

show abstract

Section: Ultraviolet-visible (Uv-vis) Spectroscopy For Determination ...mentioning

confidence: 99%

Section: Ultraviolet-visible (Uv-vis) Spectroscopy For Determination ...mentioning

confidence: 99%

Section: Ultraviolet-visible (Uv-vis) Spectroscopy For Determination ...mentioning

confidence: 99%

Section: Ultraviolet-visible (Uv-vis) Spectroscopy For Determination ...mentioning

confidence: 99%

See 2 more Smart Citations

Concentration and Distribution of Phosphorus Species in Marginal Land Soils

2024

Preprint

View full text Add to dashboard Cite

show abstract

“…ICP-AES is elemental analysis techniques attributed with high specificity, multi-element capability and good result detection. Plasma sources in these instruments are used to separate the samples into their constituent atoms or ions, draw them to higher energy levels and return to their ground state by emitting photons of a wavelength that characteristically depend on the element being analyzed [3]. These instruments have considerable sensitivity and accuracy, but they have some disadvantages such as expensive, special skills, sophisticated instruments, complicated sample preparation and can not be used for in situ detection [4].…”

Section: Introductionmentioning

confidence: 99%

Statistical Evaluation of Conventional and Portable Instrumentations for Cr(VI) Analysis on Chemistry Laboratory Waste Water

Suherman

Milawonso

Morita

et al. 2020

KEM

View full text Add to dashboard Cite

The development of portable instrumentation for heavy metals analysis was increased rapidly. However, the quality of data from portable methods has so far been questioned when compared to conventional instrumentation. In this research, a comparative study of conventional and portable instrumentations for Cr(VI) analysis on liquid waste water of Chemistry Laboratory at Universitas Gadjah Mada (UGM) was conducted. This research started with validation and statistical evaluation of instrumentation methods which are UV-Visible spectrophotometer, portable spectrophotometer (PiCOEXPLORER) and Inductively Coupled Plasma Atomic Emission Spectrometer (ICP-AES). The validation methods consist of determination of linearity, sensitivity, limit of detection and limit of quantification. The results showed that the validation methods of ICP-AES were better than PiCOEXPLORER and UV-Vis spectrophotometer. Based on t-test, it was obtained that the result of Cr(VI) analyses with the comparison of UV-Vis and PiCOEXPLORER, ICP-AES and PiCOEXPLORER, and UV-Vis and ICP-AES; there were no significant difference (tcount< ttable). The ANOVA test (F test) results showed that the Fcount value is less than Ftable so that the results of Cr(VI) analysis in the standard solution and liquid waste samples measured by three instrumentations. Thus, it was concluded that portable instrumentations was good and gives the same quality as conventional instrumentations (UV-Vis and ICP AES).

show abstract

Discovery of an Unexpected Metal Dissolution of Thin‐Coated Cathode Particles and Its Theoretical Explanation

Pham

Gao

et al. 2020

Advcd Theory and Sims

View full text Add to dashboard Cite

The degree of metal dissolution of cathode materials is a critical parameter in determining the performance of lithium-ion batteries (LIBs). Ultra-thin coated cathode particles, fabricated via atomic layer deposition (ALD), exhibit superior battery performance over that of bare particles. Therefore, it is generally believed that a coating layer protects the particles from metal dissolution of active materials, which is a critical cathode degradation mechanism. However, it is observed that ultra-thin CeO 2 coating intensified the Mn dissolution of LiMn 2 O 4 (LMO) during cycling of LIBs, whereas ultra-thin Al 2 O 3 coating tended to inhibit Mn dissolution. A detailed density functional theory (DFT) study is carried out to explain these experimental observations by analyzing interaction of Mn atoms with neighboring electrode atoms in terms of energetic and structural aspect. All atomic and electronic analyses are consistent with the experimental observations. Several common materials are investigated as possible ALD coatings for LIBs to provide general insight, and it is found that Mn dissolution can be suppressed or accelerated depending on the material selection. This is the first report finding that depending on the coating material, metal dissolution can be accelerated, providing new insights into the impact of ALD coating materials on metal dissolution in cathode materials. potential, superior capacity, a long life cycle, and a sufficiently broad range of working temperatures. Although metal oxide cathodes satisfy the criteria, they suffer from an inevitable metal dissolution degradation process. In the dissolution degradation process, transition metal ions dissolve from cathode active materials and can deposit onto the anode, causing severe cell aging and irreversible side reactions that reduce performance. [1,2] For high performance cathode materials such as LiNi x Mn y Co z O 2 (NMC, x + y + z = 1), LiNi 0.5 Mn 1.5 O 4 (LNMO), and LiMn 2 O 4 (LMO), metal dissolution (Ni, Co, Mn, etc.) is severe, and, furthermore, it was found that in such cathode materials, which are composed of two or more transition metals, there is no preferential dissolution among the constituent metals. [3] To study the metal dissolution phenomena, manganese is an excellent candidate for intensive study of the fundamental interfacial processes and side reactions at cathode surfaces because of its low toxicity, low cost, and the high natural abundance of Mn, [4][5][6][7][8][9][10][11][12] which allows it to be used in several promising cathode materials, such as NMC, LNMO, and LMO. It has been published that Mn dissolution accounts for 23% and 34% of overall capacity degradation at room temperature and at 55°C [13] in LMO, respectively. The major reason for LMO degradation, [14][15][16][17][18] as well as for other metal oxide cathode materials, [3,[19][20][21] has been identified as structural changes in the material due to phase transformations, alternation of intrinsic properties (such as electronic and ionic conductivity), dissoluti...

show abstract

Overview of an Inductively Coupled Plasma (Icp) System

Cited by 7 publications

References 15 publications

Concentration and Distribution of Phosphorus Species in Marginal Land Soils

Concentration and Distribution of Phosphorus Species in Marginal Land Soils

Statistical Evaluation of Conventional and Portable Instrumentations for Cr(VI) Analysis on Chemistry Laboratory Waste Water

Discovery of an Unexpected Metal Dissolution of Thin‐Coated Cathode Particles and Its Theoretical Explanation

Contact Info

Product

Resources

About