生物炭基污染物去除:分析质量保证和批量吸附的最佳实践教程

IF 3.2
Tellulah A. Fernando , Dinushi N. Fernando , Sameera R. Gunatilake , Chanaka Navarathna , Xuefeng Zhang
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引用次数: 0

摘要

生物炭是一种普遍存在的多孔碳质材料,具有丰富的表面官能团,因其可持续性和有效性而成为水修复的研究前沿。实验室规模生物炭批量吸附实验的准确性和可靠性对于成功过渡到中试规模应用至关重要。应评估溶液制备的准确性、适当的储存条件、选择最合适的仪器方法及其相应的灵敏度、选择性、检出限和重复性,以确保分析物定量过程中的分析质量保证(QA)。一项全面的间歇吸附研究包括优化吸附参数、进行动力学研究、等温线拟合、再生研究、竞争性吸附实验以及评估在真实水基质中的修复作用。此外,吸附参数,如pH值和接触时间,应该通过使用标准程序的反复调整来优化,以避免错误的评估。来自不同学科的科学家进行了基于生物炭的吸附研究;因此,有一种倾向,忽视上述因素,可以影响结果的可信度。本教程旨在通过阐述批吸附实验中的分析QA和最佳实践来弥合这一差距,确保获得可靠结果和结论的准确性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Biochar-based contaminant removal: A tutorial on analytical quality assurance and best practices in batch sorption

Biochar-based contaminant removal: A tutorial on analytical quality assurance and best practices in batch sorption
Biochar, a biomass-derived, ubiquitous, porous, carbonaceous material that is rich in surface functional groups, is a research frontier in water remediation due to its sustainability and efficacy. The accuracy and the reliability of laboratory scale biochar-based batch sorption experiments are essential for a successful transition to pilot scale applications. The accuracy in preparation of solutions, proper storage conditions, and selection of the most appropriate instrumental method and its corresponding sensitivity, selectivity, detection limits and repeatability should be assessed to ensure analytical quality assurance (QA) during the quantification of analytes. A comprehensive batch sorption study involves optimizing sorption parameters and conducting kinetic studies, isotherm fitting, regeneration studies, competitive sorption experiments, and evaluating remediation in a real water matrix. Moreover, sorption parameters such as the pH, and contact time, should be optimized through iterative adjustments utilizing standard procedures to avoid erroneous assessments. Biochar-based sorption studies are conducted by scientists from various disciplines; thus, there is a propensity to overlook the above-mentioned factors which can impact the credibility of results. This tutorial aims to bridge this gap by expounding analytical QA and best practices in batch sorption experiments, ensuring accuracy to obtain reliable results and conclusions.
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来源期刊
Journal of chromatography open
Journal of chromatography open Analytical Chemistry
CiteScore
2.50
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