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561.
1-{4-[(2-hydroxy-benzylidene)amino]phenyl}ethanone functionalized silica gel was synthesized and used as a highly efficient, selective and reusable solid phase extractant for separation and preconcentration of trace amount of Zn(II) from environmental matrices. The adsorbent was characterized by fourier transform infrared spectroscopy (FT-IR), elemental analysis,13C CPMAS NMR spectroscopy, scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and BET surface area analysis. The dependence of zinc extraction on various analytical parameters such as pH, type and amount of eluent, sample flow rate and interfering ions were investigated in detail. The material exhibited superior adsorption efficiency for Zn(II) with high metal loading capacity of 1.0 mmol/g under optimum conditions. After adsorption, the recovery (> 98%) of metal ions was accomplished using 1.0 mol/L HNO3 as an eluent. The sorbent was also regenerated by microwave treatment in milder acidic environment (0.1 mol/L HNO3). The lower detection limit and preconcentration factor of the present method were found out to be 0.04 μg/L and 312.5 respectively. The modified silica surface possessed excellent selectivity for the target analytes and the adsorption/desorption process remained effective for at least ten consecutive cycles. The optimized procedure was successfully implemented for the extraction of Zn(II) from mycorrhizal treated fly ash and pharmaceutical samples with reproducible results. 相似文献
562.
Tabish Mohammad Khatoon Aisha Alkahtani Saad Alkahtane Abdullah Alghamdi Jawahir Ahmed Syed Anees Mir Snober S Albasher Gadah Almeer Rafa Al-Sultan Nouf K. Aljarba Nada H. Al-Qahtani Wedad Saeed AL-Zharani Mohammed Nayak Amit Kumar Hasnain Md Saquib 《Environmental science and pollution research international》2021,28(30):40311-40321
Environmental Science and Pollution Research - The World Health Organization (WHO) recognized a novel coronavirus as the causative agent of a new form of pneumonia. It was subsequently named... 相似文献
563.
Kaushik Himanshu Ranjan Rashmi Ahmad Rakhshan Kumar Alok Prashant Kumar Nitish Ranjan Rajesh Kumar 《Environmental science and pollution research international》2021,28(15):18686-18701
Environmental Science and Pollution Research - The concentration of trace metals Mn, Pb, Ni, Zn, and Cu in the core sediment from Kabar Tal wetland was analyzed to understand the level of... 相似文献
564.
Kumari Suman Sarkar Uttam Kumar Karnatak Gunjan Mandhir Sandhya Kavitha Lianthuamluaia Lianthuamluaia Kumar Vikash Panda Debabrata Puthiyottil Mishal Das Basanta Kumar 《Environmental science and pollution research international》2021,28(9):11040-11052
Environmental Science and Pollution Research - Assessment of life history strategies of economically important small indigenous fishes (SIF) which are rich in nutritive values is essential and... 相似文献
565.
Mishra Rahul Singh Ekta Kumar Aman Kumar Sunil 《Environmental science and pollution research international》2021,28(31):41675-41687
Environmental Science and Pollution Research - The impacts of vegetation cover changes (VCCs) and land use land cover changes (LULCCs) on climate variabilities need to be addressed while... 相似文献
566.
Kumar Sanjeev Singh Ritu Kumari Nisha Karmakar Susmita Behera Monalisha Siddiqui Arif Jamal Rajput Vishnu D. Minkina Tatiana Bauddh Kuldeep Kumar Narendra 《Environmental science and pollution research international》2021,28(6):6267-6288
Environmental Science and Pollution Research - Coronavirus disease 2019 (COVID-19) has emerged as a significant public health emergency in recent times. It is a respiratory illness caused by the... 相似文献
567.
Nawaz Muhammad Atif Seshadri Usha Kumar Pranav Aqdas Ramaisa Patwary Ataul Karim Riaz Madiha 《Environmental science and pollution research international》2021,28(6):6504-6519
Environmental Science and Pollution Research - Green finance is inextricably linked to investment risk, particularly in emerging and developing economies (EMDE). This study uses the difference in... 相似文献
568.
Maurya Pankaj Kumar Mondal Soumila Kumar Vinod Singh Shailendra Pratap 《Environmental science and pollution research international》2021,28(36):49327-49342
Environmental Science and Pollution Research - The total number of inhabitants on the Earth is estimated to cross a record number of 9 × 103 million by 2050 that present a unique challenge to... 相似文献
569.
Kumar Rajesh Kamakshi Kumar Manoj Awasthi Kamlendra 《Environmental science and pollution research international》2021,28(34):46404-46413
Environmental Science and Pollution Research - For hydrogen-based energy systems development, purified hydrogen (H2) is a basic requirement and it can be achieved by using the H2-selective... 相似文献
570.
Gupta Khushboo Kumar Raushan Baruah Kushal Kumar Hazarika Samarendra Karmakar Susmita Bordoloi Nirmali 《Environmental science and pollution research international》2021,28(24):30551-30572
Environmental Science and Pollution Research - Agricultural soil acts as a source and sink of important greenhouse gases (GHGs) like methane (CH4), nitrous oxide (N2O), and carbon dioxide (CO2).... 相似文献