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  1. 421

    The Effects of Storage on Sachet Water Quality in Ogun State, Nigeria by ZO Ajekunle, VO Ojekunle, AO Eruola, FF Oyebanji, KA Olatunde, BT Amujo, OR Sangowusi, AA Adekttan, AG Taiwo

    Published 2015-07-01
    “…Physical parameters were determined by instrumental methods. Cationic and anionic constituents were determined by standard titrimetric and spectrophotometric methods, trace and heavy water were determined by Atomic Adsorption Spectrophotometer. …”
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    Article
  2. 422

    Assessment of Indoor Air Pollution through Fine Particle Capturing Potential and Accumulation on Plant Foliage in Delhi, India by Ankita Katoch, Umesh Chandra Kulshrestha

    Published 2022-07-01
    “…Chemical profiling of the deposited dust marked that dust was less basic at MH as compared to DH and Ca2+ was ubiquitously the most abundant cation at both sites whereas Cl– and SO42– were the most abundant anions at DH and MH, respectively. Abundance of K+, NO3– and NH4+ etc. indicated the influence of anthropogenic activities. …”
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    Article
  3. 423

    Remediation of Soils Contaminated by Fluoride Using a Fermentation Product of Seaweed (Eucheuma cottonii) by Ruth Lorivi Moirana, Josephine Mkunda, Marcos Paradelo, Revocatus Machunda, Kelvin Mtei

    Published 2022-01-01
    “…The formed compound participates in ion exchange with clay or with anionic adsorption to positively charged clay sites at the edges. …”
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    Article
  4. 424

    Synthesis and Characterization of Iodinated Chitosan Nanoparticles and Their Effects on Cancer Cells by Germán Alvarado Tenorio, Roberto Espinosa Neira, Carlos Alberto Ávila Orta, Gabriela Yolotzín Romero Zúñiga, Hortensia Ortega Ortiz

    Published 2024-01-01
    “…The high degree of chemical modification of the chitosan chains due to protonated amine groups allows them to react with many negatively charged surfaces as anionic polymers and cell membranes, resulting in an attractive material for medical and pharmaceutics applications. …”
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    Article
  5. 425

    Dynamic and Static Nature of Br4σ(4c–6e) and Se2Br5σ(7c–10e) in the Selenanthrene System and Related Species Elucidated by QTAIM Dual Functional Analysis with QC Calculations by Satoko Hayashi, Taro Nishide, Waro Nakanishi

    Published 2020-01-01
    “…The nature of Se2Br5σ(7c–10e) is also clarified typically, employing an anionic model of [Br-Se(C4H4Se)-Br---Br---Br-Se(C4H4Se)-Br]−, the 1,4-diselenin system, rather than (BrSeC12H8)Br---Se---Br-Br---Br-Se(C12H8Se)-Br, the selenanthrene system.…”
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  6. 426

    Microwave-assisted synthesis and swelling behavior of poly lactic acid (PLA) grafted Cordia dichotoma gum-based hydrogels by Jyoti Sinha, Abubakar Hamisu Mijinyawa, Faisal Islam Chowdhury, Muhd Zu Azhan Yahya, Pramod Kumar Singh, Geeta Durga

    Published 2025-06-01
    “…The negative value of zeta potential results confirmed the hydrogels to be anionic. The swelling of CDG-g-PLA in water was measured and found to be significantly lower than CDG, making them novel candidates for drug-delivery and sustainable food packaging applications.…”
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    Article
  7. 427

    Ionophore-based potentiometric PVC membrane sensors for determination of phenobarbitone in pharmaceutical formulations by Alrabiah Haitham, Al-Majed Abdulrahman, Abounassif Mohammed, Mostafa Gamal A.E.

    Published 2016-12-01
    “…The proposed sensors showed rapid, stable anionic response (-59.1 and -62.0 mV per decade) over a relatively wide phenobarbitone concentration range (5.0 × 10-6-1 × 10-2 and 8 × 10-6-1 × 10-2 mol L-1) in the pH range of 9-11. …”
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  8. 428

    Photocatalytic activity of spectro-pure titanium dioxide: Effects of crystalline structure, specific surface area and sorption properties by Evgeny I. Kapinus, Tatyana A. Khalyavka, Valentina V. Shimanovskaya, Tatyana I. Viktorova, Vladimir V. Strelko

    Published 2003-01-01
    “…The photocatalytic reactions bring about the reduction of the inorganic anions to yield water insoluble substances and mineralization of the organic compounds. …”
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  9. 429

    Site-specific substitution in atomically precise carboranethiol-protected nanoclusters and concomitant changes in electronic properties by Vivek Yadav, Arijit Jana, Swetashree Acharya, Sami Malola, Harshita Nagar, Ankit Sharma, Amoghavarsha Ramachandra Kini, Sudhadevi Antharjanam, Jan Machacek, Kumaran Nair Valsala Devi Adarsh, Tomas Base, Hannu Häkkinen, Thalappil Pradeep

    Published 2025-01-01
    “…Abstract We report the synthesis of [Ag17(o 1-CBT)12]3- abbreviated as Ag17, a stable 8e⁻ anionic cluster with a unique Ag@Ag12@Ag4 core-shell structure, where o 1-CBT is ortho-carborane-1-thiol. …”
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  10. 430

    Column operation studies for the removal of dyes and phenols using a low cost adsorbent by V. K. Gupta, I. Tyagi, S. Agarwal, R. Singh, M. Chaudhary, A. Harit, S. Kushwaha

    Published 2016-01-01
    “…The results show that the carbonaceous adsorbent prepared from carbon slurry being porous and having appreciable surface area (380 m2/g) can remove dyes both cationic (meldola blue, methylene blue, chrysoidine G, crystal violet) as well as anionic (ethyl orange, metanil yellow, acid blue 113), and phenols (phenol, 2-chlorophenol, 4-chlorophenol and 2,4-dichlorophenol) fruitfully from water. …”
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    Article
  11. 431

    Comparative study on photocatalytic efficiency of Mg doped CuFeO2 versus TiO2 doped CuFeO2 delafossite based on their application for the removal of tartrazine yellow dye by Sayam Bhattacharyya, Sk Aakash Hossain, Sampad Sarkar, Papita Das

    Published 2025-04-01
    “…The pHpzc values of Mg-CFO and TiO2-CFO were determined to be 9.34 and 9.0 respectively for which both photocatalysts gave good removal efficiency of anionic TZ in an acidic or lower pH region. Mg-CFO degraded 87 ​% of 20 ​mg ​L−1 of TZ in 100 ​mL of solution at 50 ​mg dosage, under pH∼2, at 130 ​rpm and 30 ​°C temperature showing a rate constant of 0.00602 min−1 and TiO2-CFO degraded 91 ​% of TZ dye under the same conditions showing a rate constant of 0.00637 min−1. …”
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    Article
  12. 432

    Cu66 nanoclusters from hierarchical square motifs: Synthesis, assembly, and catalysis by Xueli Sun, Yuchen Wang, Qingyuan Wu, Ying‐Zi Han, Xuekun Gong, Xiongkai Tang, Christine M. Aikens, Hui Shen, Nanfeng Zheng

    Published 2025-01-01
    “…The self‐assembly facilitated by the C‐H···F interaction between the cluster moieties and SbF6− anions further induces the formation of three‐dimensional cubes and eventually large nanocrystals. …”
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  13. 433

    Production of antihypertensive and antidiabetic peptide fractions from quinoa (Chenopodium quinoa Willd.) by electrodialysis with ultrafiltration membranes by Adrián González-Muñoz, Marion Valle, Rotimi E. Aluko, Laurent Bazinet, Javier Enrione

    Published 2022-11-01
    “…Cationic (CQPF) (3.01 %), anionic (AQPF) (1.18 %) and the electrically neutral fraction quinoa protein hydrolysate (QPH)-EDUF (∼95 %) were obtained. …”
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  14. 434

    Chemical Compositions of Dew and Scavenging of Particles in Changchun, China by Yingying Xu, Hui Zhu, Jie Tang, Yingzi Lin

    Published 2015-01-01
    “…The dew was analyzed and the following parameters were measured: pH, EC, TDS, major anions (F−, Cl−, SO42-, and NO3-), and major cations (NH4+, Na+, K+, Ca2+, and Mg2+). …”
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  15. 435

    A Role of Fluoride on Free Radical Generation and Oxidative Stress in BV-2 Microglia Cells by Xi Shuhua, Liu Ziyou, Yan Ling, Wang Fei, Guifan Sun

    Published 2012-01-01
    “…Intracellular superoxide dismutase (SOD), glutathione (GSH), malondialdehyde (MDA), reactive oxygen species (ROS), superoxide anions (O2∙-), nitric oxide synthase (NOS), nitrotyrosine (NT) and nitric oxide (NO), NOS in cell medium were determined for oxidative stress assessment. …”
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  16. 436

    Effect of 2-Propanol on surface properties and wetting behavior of surfactants on the glass surface by Sujit Kumar Shah, Pankaj Kumar Das, Ajaya Bhattarai

    Published 2025-02-01
    “…This study investigates the effects of 2-Propanol (2-PrOH) on the surface and wetting properties of anionic - Sodium bis(2-ethyl hexyl) sulfosuccinate, also known as Aerosol AT (AOT), Sodium Dodecyl Sulfate (SDS) – and cationic – Cetylpyridinium Chloride (CPC) and Cetyltrimethylammonium Bromide (CTAB) surfactants on a glass surface. …”
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  17. 437

    Groundwater Quality Assessment in a Karst Coastal Region of the West Aurunci Mountains (Central Italy) by Giuseppe Sappa, Silvia Iacurto, Flavia Ferranti, Francesco M. De Filippi

    Published 2019-01-01
    “…In the study area, groundwater samples are mostly characterized by a Ca-HCO3 facies, indicating that the groundwater hydrogeochemical evolution is mainly controlled by the carbonate mineral dissolution/precipitation. The cationic and anionic concentrations confirm that groundwater samples belong to the order of Ca2+>Mg2+>Na+>K+ and HCO3−>Cl−>SO42−, respectively. …”
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  18. 438

    Geopolymers in nuclear waste storage and immobilization: mechanisms, applications, and challenges by M. Houhou, N. Leklou, H. Ranaivomanana, JD. Penot, S. de Barros

    Published 2025-02-01
    “…Additionally, the mechanisms involved in stabilizing cations and anions are described. The paper also discusses early developments in the use of GP-based materials for tunnel linings in underground nuclear waste storage cells. …”
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    Article
  19. 439

    Transforming Soil Stability: A Review on Harnessing Plant Cell Compounds and Microbial Products for Modifying Cation Exchange Capacity by M. V. Shah, N. M. Rathod, D. N. Prajapati, P. J. Mehta, R. R. Panchal and Vijay Upadhye

    Published 2024-12-01
    “…This paper explores the preparation of plant extract, which contains a high number of anions, and directly inoculates it with soil, which nullifies the positive charge of the soil and diminishes the CEC. …”
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    Article
  20. 440

    Study on the preparation of calcium modified coal gangue and its adsorption performance of phosphate by Yanrong Dong, Hongyu Zhai, Ziqing Gao, Guohao Gong, Fengjuan Li

    Published 2025-01-01
    “…The order of the strength of coexisting anions affecting the adsorption of phosphate by CaMCG was: CO3 2− > SO4 2− > HCO3 − > NO3 − ≈ Cl−. …”
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    Article