Showing 41 - 60 results of 150 for search 'detection dissolution', query time: 0.08s Refine Results
  1. 41
  2. 42

    Determination of Uranium, Thorium and Potassium for Optically Stimulated Luminescence Dating by ICP-MS and XRF by Na WANG, Lei WU, Jiasong WANG, Yang YU, Jiangping ZENG, Yongsheng CHEN, Fu WANG

    Published 2024-09-01
    “…The effects of closed acid dissolution method and open acid dissolution method on the determination of uranium, thorium, and potassium by ICP-MS method were studied. …”
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  3. 43

    Determination of Total Boron in Soil by Alkaline Fusion-Inductively Coupled Plasma Mass Spectrometry by Jia-shu CHEN, Xiong XIONG, Jin-mei DUAN, Ying-lin CHEN, Jia-jun JIANG, Hong-hui ZHU

    Published 2025-05-01
    “…The accuracy and reliability of the method were ensured by optimizing the experimental conditions, such as melting temperature, melting time and acid dissolution conditions. The results showed that after adding 2.0 g Na2CO3, soil samples were heated at 950 ℃ for 20 min, and then hydrochloric acid solution (1:1, V/V) was used to dissolve the frit, affording the best dissolution effect. …”
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  4. 44

    Determination of 34 Elements in Ground Substrate of Black Soil by ICP-MS/OES with Alkali Melting Digestion by Haiyue YU, Qi ZHANG, Bing LU, Chenhao HAN, Taoyuan WANG, Mingliang LI

    Published 2025-05-01
    “…Traditional pretreatment methods such as open acid dissolution digestion, microwave acid dissolution and digestion, high-pressure closed acid dissolution and digestion, and ashing method cannot completely digest the sample, and different elements need to adopt different digestion and determination methods, resulting in long experiments, complex operation processes, high analysis costs, and are not suitable for the simultaneous determination of multiple elements. …”
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  5. 45

    Visualization simulation experiments and porosity evolution mechanisms of deep to ultra-deep carbonate reservoirs by Anping HU, Min SHE, Anjiang SHEN, Zhanfeng QIAO, Wenzheng LI, Qiuding DU, Changjian YUAN

    Published 2025-04-01
    “…This unit comprises four core modules: an ultra-high temperature, high pressure triaxial stress core holder module (temperature higher than 300 °C, pressure higher than 150 MPa), a multi-stage continuous flow module with temperature-pressure regulation, an ultra-high temperature-pressure sapphire window cell and an in-situ high-temperature-pressure fluid property measurement module and real-time ultra-high temperature-pressure permeability detection module. Using the new experimental device and the carbonate rock samples from the Sichuan Basin and Tarim Basin to simulate the dissolution-precipitation process of deep to ultra-deep carbonate reservoirs in an analogous geological setting, the geological insights were obtained in three aspects. …”
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  6. 46

    Determination of Tungsten, Molybdenum and 5 Associated Elements in Tungsten-Molybdenum Ore by Inductively Coupled Plasma-Optical Emission Spectrometry with Direct Sintering by Zhou SONG, Yiping JI, Weihua WANG, Shaomin FANG, Jie YANG, Huoyan LUO, Yuqi ZHOU

    Published 2023-10-01
    “…However, the matrix effect cause by the alkali melting method seriously affects the accuracy and detection limit of instrument testing; the acid dissolution method has low dissolution efficiency for tungsten, molybdenum and other insoluble elements, and requires a long time and a complex pretreatment process by using a variety of inorganic strong acids such as hydrofluoric acid and aqua regia, which can also cause damage to the analytical and testing instruments.OBJECTIVESTo develop a simple and efficient method for quantitative analysis of tungsten and molybdenum and its associated elements in tungsten-molybdenum ore.METHODSBased on alkaline melting and acid dissolution, a method was established by inductively coupled plasma-optical emission spectrometry (ICP-OES) with direct sintering and complex extraction of hydrochloric acid-phosphoric acid-citric acid. …”
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  7. 47

    Monitoring the chemical and structural changes during progressive aqueous alteration of silica thin films deposited by CVD process : accurate thickness loss rates measurements by Farah Inoubli, Babacar Diallo, Konstantina Christina Topka, Raphael Laloo, Emmanuel Veron, Vincent Sarou-Kanian, Brigitte Caussat, Thierry Sauvage, Viviane Turq, Nadia Pellerin

    Published 2025-05-01
    “…These phenomena are occurring with a cyclic hydrolysis–dissolution process. These findings represent the first available dataset on dissolution rates of CVD-deposited silica films. …”
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  8. 48

    Determination of 15 Rare Earth Elements in Phosphate Ores by Inductively Coupled Plasma-Mass Spectrometry with Atmospheric Pressure Closed Microwave Digestion by Nan ZHANG, Zhikang ZHENG, Jiasong WANG, Jiangping ZENG

    Published 2024-04-01
    “…The relative standard deviation (RSD) of 15 rare earth elements was between 0.68% and 4.52%, the recovery was between 93.1% and 106.6%, and detection limit was between 0.003-0.029μg/g. Two phosphate ore samples were selected and compared with the mixed acid dissolution method. …”
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  9. 49

    Determination of Rare Earth Elements in Soil and Stream Sediment by Inductively Coupled Plasma-Mass Spectrometry with Automatic Graphite Digestion by Meiyun ZENG, Qisheng HE, Xin SHAO, Xiaoli YANG

    Published 2023-06-01
    “…The amount of mixed acid used in the method is 4mL, which is much lower than that in the electric plate digestion method, the corresponding environmental pollution is also reduced. The detection limit of most rare earth elements in the method is lower than that in the standard method. …”
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  10. 50

    Release Behavior and Bioaccumulation Characteristics of Organophosphate Esters from Plastics in Marine Aquaculture by Zhi YANG, Dongni LIU, Shengnan HUANG, Xuetian DAI, Wei QIAN, Xiaoshan ZHU

    Published 2025-08-01
    “…Chlorinated OPEs exhibited the highest dissolution rates, with TCEP showing a dissolution rate of 40.6%. …”
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  11. 51

    Element-resolved electrochemical database: AESEC polarization curves of ZnAlMg alloy coating constituents by Junsoo Han, Kevin Ogle

    Published 2025-07-01
    “…Element-resolved electrochemistry reveals important corrosion phenomena not detectable in conventional electrochemistry such as cathodic dissolution, chemical dissolution, cathodic dealloying, negative correlation effects, and anomalous hydrogen evolution. …”
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  12. 52

    Application of in-silico docking for green electrochemical quantification of prucalopride succinate in pharmaceutical, urine, and milk matrices by Ahmed R. Mohamed, Rania A. Sayed, Abdalla Shalaby, Hany Ibrahim

    Published 2025-02-01
    “…According to findings, the α-cyclodextrin sensor outperformed the other proposed sensors in terms of Nernstian slope (56.87 mV/decade), linearity range (1 × 10−6 M – 1 × 10−2 M), and detection limit (7.50 × 10−7 M). For the first time and with minimal sample pre-treatment, prucalopride was quantified with excellent recoveries in dissolution media, human urine, and formula milk samples employing the proposed α-cyclodextrin sensor. …”
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  13. 53

    Parascolymia (Scleractinia: Lobophylliidae) in the Central Paratethys Sea (Vienna Basin, Austria) and its possible biogeographic implications. by Markus Reuter, Thomas Wiedl, Werner E Piller

    Published 2015-01-01
    “…Palaeobiogeographical and palaeodiversity patterns of scleractinian reef corals are generally biased due to uncertain taxonomy and a loss of taxonomic characters through dissolution and recrystallization of the skeletal aragonite in shallow marine limestones. …”
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  14. 54

    Hydrogen interaction in bulk fluids for geological storage application using NMR by Sidi Mamoudou, Son Dang, Chandra Rai

    Published 2025-04-01
    “…The results indicate that hydrogen predominantly remains in the free phase when interacting with water, as evidenced by fast relaxation times (1–20 ms) and no observed changes in T₂ with pressure, confirming limited dissolution. Similarly, hydrocarbons—including dodecane, dead oil, and wax—showed no evidence of hydrogen dissolution under NMR, as only free-phase hydrogen signals (1–20 ms) were detected. …”
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  15. 55

    Degradation modeling of polymer electrolyte membrane water electrolyzers for hydrogen production: motivation, status, and strategies by Thomas Waite, Mohammad Yazdani-Asrami

    Published 2025-01-01
    “…For the purposes of fault detection, bond graph modeling is a novel approach allowing for precise, expandable monitoring and isolation. …”
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  16. 56

    Monosilane Worlds: Sub-Neptunes with Atmospheres Shaped by Reduced Magma Oceans by Yuichi Ito, Tadahiro Kimura, Kazumasa Ohno, Yuka Fujii, Masahiro Ikoma

    Published 2025-01-01
    “…Our results show that the dissolution of H _2 O enhances the SiH _4 molar fraction to levels of 0.1%–10%, preventing it from reverting to silicates in the upper atmospheric layers. …”
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  17. 57

    Validation of the performance of a point of care molecular test for leprosy: From a simplified DNA extraction protocol to a portable qPCR. by Amanda Bertão-Santos, Larisse da Silva Dias, Marcelo Ribeiro-Alves, Roberta Olmo Pinheiro, Milton Ozório Moraes, Fernanda Saloum de Neves Manta, Alexandre Dias Tavares Costa

    Published 2024-10-01
    “…Among the lysis solutions, the best-performing was composed of urea (2 M), which provided good dissolution of the skin fragment and a lower Ct value, indicating higher concentrations of DNA. …”
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  18. 58

    CLASTOGENIC POTENTIAL OF SOME CHEMICALS USED IN AGRICULTURE MONITORED THROUGH THE ALLIUM ASSAY by Elena BONCIU

    Published 2023-01-01
    “…Many of the higher plants can be genetic models for the detection of environmental mutagens. One of the species often used in monitoring environmental pollution with pesticides is onion (Alium cepa). …”
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  19. 59

    Sedimentology and reservoir characterisation of Lower Jurassic clastic sedimentary rocks, Salt and Trans Indus Ranges, Pakistan: Evidence from petrography, scanning electron micros... by Salman Ahmed Khattak, Nasar Khan, Waseem Khan, S. Sahaya Jude Dhas, George Kontakiotis, Ihtisham Islam, Hammad Tariq Janjuhah, Assimina Antonarakou

    Published 2025-04-01
    “…The porosity types detected in the Datta Formation under scanning electron microscopy are vuggy, intracrystalline/intraparticle, dissolution and intercrystalline, with an average petrographic visual porosity of 11%. …”
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  20. 60

    Critical Evaluation and Validation of a High-Throughput Microplate-Based Cupric Reducing Antioxidant Capacity Method for the Analysis of Fish Feed Ingredients by Aleksander Arnø, Viviana Sarmiento, Odd Elvebø, Pedro Araujo

    Published 2025-06-01
    “…Under these conditions, the CUPRAC assay demonstrated a linear range of 0–50 μM, a limit of detection of 0.91 μM, and a limit of quantification of 2.75 μM. …”
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