A Green Sequential Injection Spectrophotometric Approach Using Natural Reagent Extracts from Heartwood of Ceasalpinia sappan Linn. for Determination of Aluminium

Siriangkhawut, Watsaka; Khanhuathon, Yaowalak; Chantiratikul, Piyanete; Ponhong, Kraingkrai; Grudpan, Kate

doi:10.2116/analsci.32.329

Cited by 19 publications

(4 citation statements)

References 34 publications

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“…In molecular spectroscopic fields especially UV-Visible spectrophotometry, many publications have reported natural plant extractions as alternatives to commercially available reagents for the development of environmentally-friendly analytical methods, such as pumpkin for benzoyl peroxide assay [ 12 ], turmeric ( Curcuma longa L.) for acetic acid assay [ 13 ], Indian mulberry root [ 14 ], heartwood of sappan wood [ 15 ] and Indian almond leaves [ 16 ] for aluminum assay, slippery elm ( Ulmus rubra ) leaf to determine trace amounts of molybdenum(VI) [ 17 ], and Oriental plane tree ( Platanus orientalis ) for the determination of zirconium [ 18 ]. Natural reagents have been developed as green analytical methods to quantify iron such as Indian gooseberry [ 19 ], guava leaves [ 20 ], green tea [ 21 ], betel nut [ 22 , 23 ], lead tree [ 24 ], and Smilax china root [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Ultrasound-Assisted One-Pot Cloud Point Extraction for Iron Determination Using Natural Chelating Ligands from Dipterocarpus intricatus Dyer Fruit

et al. 2022

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An ultrasound-assisted, one-pot cloud point extraction was developed for the determination of iron in vegetable samples by UV-Visible spectrophotometry. This method was based on the complexation of iron with an environmentally-friendly natural chelating agent extracted from Dipterocarpus intricatus Dyer fruit at pH 5.5 in the presence of Triton X-114. Reagent extraction, complexation, and preconcentration were performed simultaneously using ultrasound-assisted extraction at 45 °C. The surfactant-rich phase was diluted with ethanol and loaded through a syringe barrel packed with cotton that acted as a filter to trap the reagent powder. Analyte-entrapped on cotton was eluted using 0.1 mol·L−1 nitric acid solution. Filtrate and eluate solutions were measured absorbance of the dark-blue product at 575 nm. Influential parameters for the procedure were investigated. Under the optimum experimental conditions, the calibration curve was linear, ranging from 0.1 to 1.0 mg·L−1 with r2 = 0.997. Limits of detection and quantification were 0.03 and 0.09 mg·L−1, respectively while precision values of intra-day and inter-day were less than 5%. Recovery at 0.5 mg·L−1 ranged from 89.0 to 99.8%, while iron content in vegetable samples ranged from 2.45 to 13.36 mg/100 g. This method was cost-effective, reliable, eco-friendly, and convenient as a green analytical approach to determining iron content.

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Section: Introductionmentioning

confidence: 99%

Ultrasound-Assisted One-Pot Cloud Point Extraction for Iron Determination Using Natural Chelating Ligands from Dipterocarpus intricatus Dyer Fruit

et al. 2022

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“…In addition, the use of natural reagent contributes to increasing the safety of the operator. Recently, use of natural reagents in combination with flow-based analytical systems was proposed to achieve a greener analytical method, for example, using reagents derived from pumpkin [ 13 ], Morinda citrifolia root [ 14 ], heartwood [ 15 ], Phyllanthus emblica Linn [ 16 ], peacock flower [ 17 ], and orchid flower [ 18 ] for determination of various analytes. For sulfite determination, a crude extract of sweet potato root ( Ipomoea batatas (L.) Lam.)…”

Section: Introductionmentioning

confidence: 99%

An Environmentally Friendly Flow Injection-Gas Diffusion System Using Roselle (Hibiscus sabdariffa L.) Extract as Natural Reagent for the Photometric Determination of Sulfite in Wines

Reanpang

Pun-uam

Jakmunee

et al. 2021

Journal of Analytical Methods in Chemistry

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In this work, a green and simpler method for photometric determination of sulfite based on a flow injection-gas diffusion (FI-GD) system using a natural reagent extracted from roselle (Hibiscus sabdariffa L.) was proposed. Despite the fact that the employed reaction is not selective to sulfite, its sensitivity is high, and the selectivity can be improved by coupling a GD unit to the FI system. The method involves monitoring a decrease in absorbance of the reagent solution that is used as an acceptor solution. When a standard solution or sample solution was injected into an acidic donor stream, the liberated sulfur dioxide diffuses through a gas-permeable membrane of the GD unit into the acceptor solution, causing color fading of the reagent. A linear analytical curve in the range of 5–100 mg L−1 was obtained with a detection limit of 2 mg·L−1. Relative standard deviations of 0.9%, 0.6%, and 0.6% were obtained for the determination of 30, 70, and 100 mg·L−1 SO32- (n = 11). The developed method was applied to wine samples, giving results that agreed with those obtained with the Ripper titrimetric method. The proposed method offers advantages of simplicity, cost-effectiveness, and being environmentally friendly such as reduced chemical consumption and less waste generation.

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“…The use of natural substances from animal tissues and plants as reagents for chemical analyses has been explored by many research groups as summarized by Grudpan et al and Kradtap Hartwell . Other more recent examples include the use of morindone (anthraquinones) from noni or Indian mulberry root, tannins from Indian almond leaves, and brazelein from sappan heartwood as chromogenic reagents for the detection of aluminum. Similar to guava leaf and green tea leaf extracts, gall nut and Indian gooseberry extracts provide polyphenolic compounds for the colorimetric determination of iron.…”

Section: Introductionmentioning

confidence: 99%

Green Analytical Chemistry Experiment: Quantitative Analysis of Iron in Supplement Tablets with Vis spectrophotometry Using Tea Extract as a Chromogenic Agent

et al. 2019

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A green chemistry experiment is presented for teaching an undergraduate quantitative analysis/analytical chemistry laboratory class through the use of black tea leaf extract for the determination of iron in supplement tablets. Dried tea leaf is a safe, low cost, and widely available source of natural extract that can be used in place of more toxic chemicals (for example, 1,10-phenanthroline) or other uncommon natural reagents that may be hard to obtain outside their native lands. Various student learning outcomes accommodated within this experiment include the principles and hands-on operation of a spectrophotometer, the construction of a calibration graph and obtaining a linear regression equation using Microsoft Excel, the determination of figures of merit (limit of detection, limit of quantitation, and linear working range), and sampling and preparation of supplement tablets with acid digestion. Students were trained in quality control and quality assurance through statistical data analysis for precision (SD) and accuracy (t test, percent recovery, and percent error) for the experiment. They were asked to discuss not only advantages but also limitations of using natural reagents for chemical analysis. Critical thinking and a deep understanding of the experiment were assessed through the students’ ability to answer follow-up questions in their report and on the exam. Class management and modification of the experiment to suit a laboratory with limited facilities are discussed. This robust tea-Fe experiment was successfully demonstrated for teaching both large and small laboratory classes at two institutions, one in the U.S. and one in Thailand.

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A Green Sequential Injection Spectrophotometric Approach Using Natural Reagent Extracts from Heartwood of Ceasalpinia sappan Linn. for Determination of Aluminium

Cited by 19 publications

References 34 publications

Ultrasound-Assisted One-Pot Cloud Point Extraction for Iron Determination Using Natural Chelating Ligands from Dipterocarpus intricatus Dyer Fruit

Ultrasound-Assisted One-Pot Cloud Point Extraction for Iron Determination Using Natural Chelating Ligands from Dipterocarpus intricatus Dyer Fruit

An Environmentally Friendly Flow Injection-Gas Diffusion System Using Roselle (Hibiscus sabdariffa L.) Extract as Natural Reagent for the Photometric Determination of Sulfite in Wines

Green Analytical Chemistry Experiment: Quantitative Analysis of Iron in Supplement Tablets with Vis spectrophotometry Using Tea Extract as a Chromogenic Agent

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