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Journal articles on the topic 'Xylenol orange (XO)'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

H., P. SRIVASTAVA, and TIWARI DIWAKAR. "Ternary Complexes of Cadmium(II) with Amino Acids and Xylenol Orange." Journal of Indian Chemical Society Vol.70, Jun 1993 (1993): 499–501. https://doi.org/10.5281/zenodo.5913584.

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Department of Chemistry, Banaras Hindu University, Varanasi-221 005 <em>Manuscript received 12 May 1992, revised 1 February 1993, accepted 9 February 1993</em> Calvin-Bjerrum's potentiometric technique as modified by Irving and Rossotti has been used to study the interaction of Cd<sup>II</sup> with xylenol orange and amino acids to form mixed-ligand complexes. Xylenol orange (XO) is chosen as primary ligand whereas some amino acids (L), viz. L<em>-α</em>-alanine, L-serine, DL-methionine and glycine are chosen as secondary ligands. The proton-ligand stability constant evaluated for th

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2

Abdel-Hamid, Refat, Hussein M. El-Sagher, and Mostafa K. Rabia. "Electrochemical studies on sulphonephthaleins. Part 3. Kinetics of electrochemical reduction of xylenol orange and square-wave adsorptive cathodic stripping voltammetry of its lanthanum complex." Canadian Journal of Chemistry 75, no. 2 (1997): 162–68. http://dx.doi.org/10.1139/v97-019.

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The electrochemical reduction behaviour of xylenol orange, XO, in aqueous medium was studied over a pH range of 2.3–9.6 at a hanging mercury drop electrode, HMDE, on the basis of cyclic voltammetric, and double-potential step chronoamperometric and chronocoulometric data. The experimental results indicate that in acid medium (pH 2.28) the reduction of XO proceeds via an ECEC, first-order mechanism giving a single two-electron diffusion-controlled cyclic voltammetric wave. It was concluded that the rate-determining step is the protonation of the protonated anion intermediate to the final produc

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3

Xiong, Xiao Li, та Chen Bin Shao. "Removal of Xylenol Orange from Solutions by γ-Cyclodextrin-Grafted Carboxymethyl Cellulose". Advanced Materials Research 204-210 (лютий 2011): 1180–83. http://dx.doi.org/10.4028/www.scientific.net/amr.204-210.1180.

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The potential to remove xylenol orange (XO) from aqueous solutions through adsorption on γ-cyclodextrin-grafted carboxymethyl cellulose (CCMC) was investigated in batch experiments. The effects of contact time, adsorption temperature and initial XO concentration were discussed. Results of batch experiments showed that CCMC exhibited some sorption capacities towards XO. It was found that isotherm fitted Languir and Freundlich models for the adsorption of XO on CCMC. On the basis of the Langmuir analysis, the maximum adsorption capacities were determined to be 29.9, 27.1, 21.9, 16.2 and 16.1 mg

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4

Denisova, S. A., and A. E. Lesnov. "EFFECT OF SURFACTANT DIFFERENT NATURE ON SPECTROPHOTOMETRIC CHARACTERISTICS OF THE SCANDIUM COMPLEX WITH XYLENOL ORANGE." Вестник Пермского университета. Серия «Химия» = Bulletin of Perm University. CHEMISTRY 9, no. 3 (2019): 240–49. http://dx.doi.org/10.17072/2223-1838-2019-3-240-249.

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At various pH values, the effects of surfactants of different types have been studied: catamine AB, oxy-phos B, synthanol ALM-10 on the spectrophotometric characteristics of scandium with xylenol orange (XO). For complexation of scandium with XO, the optimum pH range is 1.56–2.44, the introduction of catamine AB under these conditions does not significantly affect the spectrophotometric characteris-tics of the complexes. The bathochromic shift from 508 to 637 nm and an increase in the intensity of light absorption by almost three times in the XO – Sc system — katamine AB occurs at a pH of 6.15

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5

A., B. Zade, and S. Dhepe A. "Spectrophotometric microdetermination of gadolinium(III) and terbium(III) with xylenol orange in presence of cationic cetylpyridinium bromide as a surfactant." Journal of Indian Chemical Society Vol. 90, Sep 2013 (2013): 1367–78. https://doi.org/10.5281/zenodo.5789068.

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Department of Chemistry, Laxminarayan Institute of Technology, R. T. M. Nagpur University, Nagpur-440 010, Maharashtra, India <em>E-mail</em>: ab_zade18@yahoo.com Fax: 91-712-2561107 Department of Applied Chemistry, Smt. Radhikatai Pandav College of Engineering, Nagpur-411 204, Maharashtra, India <em>E-mail:</em> as_dhepe@yahoo.com <em>Manuscript received online 04 December 2012, revised 28 December 2012, accepted 30 December 2012</em> Xylenol orange (XO) has been reported earlier to form violet colored binary complexes with several lanthanides and used for the determination of several metal i

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6

Piotrowski, Michał, Piotr Maras, and Marek Kozicki. "Sorbitol to reduce Fe diffusion in a Fricke gel dosimeter and enhance its resistance to elongation." Journal of Physics: Conference Series 2799, no. 1 (2024): 012008. http://dx.doi.org/10.1088/1742-6596/2799/1/012008.

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Abstract This work presents a 2D Fricke dosimeter with xylenol orange (XO), gelatine matrix and addition of sorbitol. The dosimeter was irradiated with various monitor units ranging from 500 to 10000 MU (3.6-72 Gy). The addition of sorbitol significantly reduced the diffusion coefficient of Fe3+ ions and improved the mechanical properties of the gel, while the chemical stability of the dosimeter decreased.

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7

Khumtong, Kotchaporn, Witsanu Rapichai, Wichayet Saejung, et al. "Colorimetric Reverse Transcription Loop-Mediated Isothermal Amplification with Xylenol Orange Targeting Nucleocapsid Gene for Detection of Feline Coronavirus Infection." Viruses 17, no. 3 (2025): 418. https://doi.org/10.3390/v17030418.

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Feline infectious peritonitis (FIP), a devastating disease with near-complete mortality, is caused by the feline coronavirus (FCoV) and affects domestic cats worldwide. Herein, we report the development of a reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay incorporating xylenol orange (XO) as a visual indicator for FCoV detection. The assay employed six oligonucleotide primers targeting regions of the nucleocapsid (N) gene. Under optimized conditions (65 °C, 60 min), amplification products were detected through pH-dependent colour changes in the XO dye. The RT-LAMP-

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8

S., C. LAVALE. "Hot Amperometric Titration for Estimation of Trace Amounts of Lanthanum and Cerium." Journal of Indian Chemical Society Vol. 63, June 1986 (1986): 605–6. https://doi.org/10.5281/zenodo.6271847.

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Post Graduate Chemistry Department, Government College, Betul-460 001 <em>Manuscript received 30 September 1986, revised 8 June 1986, accepted 18 June 1986</em> Trace amounts of La<sup>III</sup> and Cent have been estimated quantitatively with xylenol orange (XO) using hot amperometric titration technique. In hot condition, the increase in reversibility and ease of reduction facilitate the metal-ligand complexation. The titrations have been performed at <em>p</em>H 5.5, <em>µ</em>=0.2 and temp.=70°. The stiochiometric ratio of metal-XO complex is found to be 1 : 1. Many ions donot in

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9

Zhang, Conglu, Xiaohong Hou, Ning Liang, Yueyue Ding, and Xiaomin Hu. "Study of competitive adsorption of acid dyes on magnetic quaternary chitosan salt." Water Science and Technology 70, no. 4 (2014): 649–55. http://dx.doi.org/10.2166/wst.2014.276.

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Magnetic quaternary chitosan salt CS/EPTAC/Fe3O4 was used for the removal of acid red 1 (AR1), xylenol orange (XO) and alizarin red (AR) in single, binary and ternary systems. In the single system, the maximal adsorption capacity was 781.55 for AR1, 537.40 for XO and 992.61 mg g−1 for AR at pH 3.0 and 25 °C. The adsorption kinetics of the three dyes followed the pseudo-second-order model. In the multicomponent system, preferential adsorption was observed for AR at low adsorbent quantities due to the small size of the molecule. When the adsorbent amount was greater, AR1 was adsorbed first becau

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10

Piotrowski, Michał, Piotr Maras, Sławomir Kadłubowski, and Marek Kozicki. "Study of the Optimal Composition and Storage Conditions of the Fricke–XO–Pluronic F–127 Radiochromic Dosimeter." Materials 15, no. 3 (2022): 984. http://dx.doi.org/10.3390/ma15030984.

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This paper presents the results of research on the Fricke–XO–Pluronic F–127 dosimeter. It consists of a Fricke dosimetric solution and xylenol orange (XO), which are embedded in a matrix of poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) (Pluronic F–127). Upon irradiation, Fe+2 ions transform into Fe+3, forming a colored complex with XO ([XO-Fe]+3). The color intensity is related to the dose absorbed. The optimal composition, storage conditions, and radiation-induced performance of the Fricke–XO–Pluronic F–127 dosimeter were investigated. The optimal composition was

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11

Scotti, Martina, Paolo Arosio, Elisa Brambilla, et al. "How Xylenol Orange and Ferrous Ammonium Sulphate Influence the Dosimetric Properties of PVA–GTA Fricke Gel Dosimeters: A Spectrophotometric Study." Gels 8, no. 4 (2022): 204. http://dx.doi.org/10.3390/gels8040204.

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The development of Fricke gel (FG) dosimeters based on poly(vinyl alcohol) (PVA) as the gelling agent and glutaraldehyde (GTA) as the cross-linker has enabled significant improvements in the dose response and the stability over time of spatial radiation dose distributions. However, a standard procedure for preparing FG in terms of reagent concentrations is still missing in the literature. This study aims to investigate, by means of spectrophotometric analyses, how the sensitivity to the radiation dose and the range of linearity of the dose–response curve of PVA-GTA-FG dosimeters loaded with xy

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12

Zhu, Linhui, Chengdong Guan, Bin Zhou, et al. "Adsorption of Dyes onto Sodium Alginate Graft Poly(Acrylic Acid-co-2-Acrylamide-2-Methyl Propane Sulfonic Acid)/ Kaolin Hydrogel Composite." Polymers and Polymer Composites 25, no. 8 (2017): 627–34. http://dx.doi.org/10.1177/096739111702500808.

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Adsorption of four dyes, namely methyl violet (MV), rhodamine 6G (R6G), acid chrome blue K (AK) and xylenol orange (XO) onto sodium alginate graft poly(acrylic acid-co-2-acrylamide-2-methyl-1-propanesulfonicacid)/kaolin (SA-g-P(AA-co-AMPS)/KL) hydrogel composite is studied. The factors influencing the adsorption capacities, including the initial concentrations of dye solutions, contact time, initial pH values and dosage of the adsorbent as well as ionic strength of the solution are discussed. It is more effective for the composite to adsorb cationic dyes such as MV and R6G rather than anionic

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13

Võ Anh, Khuê. "Research on a new spectrophotometric method for determinating trace amounts of fluoride." Journal of Science and Technology Issue on Information and Communications Technology 17, no. 12.1 (2019): 24. http://dx.doi.org/10.31130/jst-ud2019-074e.

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A new spectrophotometric method for determinating trace amounts of fluoride has been introduced in this article. The principle of the method is based on the reaction of fluoride with a complex of aluminum ion and xylenol orange reagent (Al-XO). The concentration of fluoride in water is determined by measuring the red color of the Al-XO complex at 555 nm or measuring the yellow color of the XO reagent at 430 nm. The factors affecting the method for the determination of fluoride were examined. At the optimum condition, the limit of quantitation of this method is 0.08-2.1 mg/L. Based on an analys

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14

Kozbek, Ali Y., Kubilay Şahin, Ertuğrul Sarı, et al. "Evaluation of Amine Functionalized Thermal Power Plant Solid Waste for Industrial Wastewater Remediation." Adsorption Science & Technology 2022 (January 17, 2022): 1–14. http://dx.doi.org/10.1155/2022/8335566.

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Micro/nanoparticles generated after the combustion of coal/lignite in the thermal power plants were modified with amino groups of (3-aminopropyl) triethoxysilane (APTES). These silane-based functional particles were applied in textile dye (xylenol orange, XO and methyl orange, MO) removal process to deal with an industrial wastewater problem. The maximum adsorption efficiencies of APTES coated micro/nanoparticles for MO and XO dye molecules were calculated to be around 98% and 75%, respectively. The adsorption behavior of the LCFA against dyes is also assessed by investigating the effect of ad

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15

Belleza, Oliver John V., and Aaron Joseph L. Villaraza. "Ion charge density governs selectivity in the formation of metal–Xylenol Orange (M–XO) complexes." Inorganic Chemistry Communications 47 (September 2014): 87–92. http://dx.doi.org/10.1016/j.inoche.2014.07.024.

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16

Alharthi, Fahad A., Wedyan Saud Al-Nafaei, Alanoud Abdullah Alshayiqi, Hamdah S. Alanazi, and Imran Hasan. "Hydrothermal Synthesis of Bimetallic (Zn, Co) Co-Doped Tungstate Nanocomposite with Direct Z-Scheme for Enhanced Photodegradation of Xylenol Orange." Catalysts 13, no. 2 (2023): 404. http://dx.doi.org/10.3390/catal13020404.

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In the present study, pristine ZnWO4, CoWO4, and mixed metal Zn0.5Co0.5WO4 were synthesized through the hydrothermal process using a Teflon-lined autoclave at 180 ℃. The synthesized nanomaterials were characterized by various spectroscopic techniques, such as TEM, FTIR, UV–vis, XRD, and SEM-EDX-mapping to confirm the formation of nanocomposite material. The synthesized materials were explored as photocatalysts for the degradation of xylenol orange (XO) under a visible light source and a comparative study was explored to check the efficiency of the bimetallic co-doped nanocomposite to the prist

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17

Sukthang, Kreeta, Jantana Kampeera, Chakrit Sriprachuabwong, et al. "Sensitivity Validation of EWOD Devices for Diagnosis of Early Mortality Syndrome (EMS) in Shrimp Using Colorimetric LAMP–XO Technique." Sensors 21, no. 9 (2021): 3126. http://dx.doi.org/10.3390/s21093126.

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Electrowetting-on-dielectric (EWOD) is a microfluidic technology used for manipulating liquid droplets at microliter to nanoliter scale. EWOD has the ability to facilitate the accurate manipulation of liquid droplets, i.e., transporting, dispensing, splitting, and mixing. In this work, EWOD fabrication with suitable and affordable materials is proposed for creating EWOD lab-on-a-chip platforms. The EWOD platforms are applied for the diagnosis of early mortality syndrome (EMS) in shrimp by utilizing the colorimetric loop-mediated isothermal amplification method with pH-sensitive xylenol orange

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18

G., Ushanandhini, Arivalagan K., and Tamilarasan R. "Low-cost activated carbon derived from Cassia alata seeds for the removal of xylenol orange from aqueous solution: Kinetic, equilibrium, thermodynamic studies." Journal of Indian Chemical Society Vol. 96, Jan 2019 (2019): 198–99. https://doi.org/10.5281/zenodo.5653635.

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Department of Chemistry, Govt. Arts College for Men, Nandanam, Chennai-600 035, India <em>E-mail:</em> arivualagan16@gmail.com Department of Chemistry, University College of Engineering Pattukottai, Rajamadam-614 701, Tamilnadu, India <em>Manuscript received online 30 August 2018, accepted 10 October 2018</em> An inexpensive and porous activated carbon (AC) was prepared from <em>Cassia alata</em> (CA) matured seeds using sulphuric acid as an activating agent. The prepared activated carbon was employed for the adsorption of Xylenol Orange (XO) in an aqueous solution. The experiments were conduc

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19

Lamalee, Aekarin, Soithong Saiyudthong, Chartchai Changsen, et al. "End-point rapid detection of total and pathogenic Vibrio parahaemolyticus (tdh⁺ and/or trh1⁺ and/or trh2⁺) in raw seafood using a colorimetric loop-mediated isothermal amplification-xylenol orange technique." PeerJ 12 (January 3, 2024): e16422. http://dx.doi.org/10.7717/peerj.16422.

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Background Vibrio parahaemolyticus is the leading cause of bacterial seafood-borne gastroenteritis in humans worldwide. To ensure seafood safety and to minimize the occurrence of seafood-borne diseases, early detection of total V. parahaemolyticus (pathogenic and non-pathogenic strains) and pathogenic V. parahaemolyticus (tdh+ and/or trh1+ and/or trh2+) is required. This study further improved a loop-mediated isothermal amplification (LAMP) assay using xylenol orange (XO), a pH sensitive dye, to transform conventional LAMP into a one-step colorimetric assay giving visible results to the naked

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20

Bienkovska, Tetyana, Ruslan Khoma, and Olena Vatral. "IMPREGNATED FIBROUS CHEMISORBENTS FOR THE COLORIMETRIC DETECTION OF AMMONIA." Ukrainian Chemistry Journal 88, no. 12 (2023): 175–88. http://dx.doi.org/10.33609/2708-129x.88.12.2022.175-188.

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The paper presents research results on the colorimetric behavior of impregnated fibrous chemisorbents (IFCS) of basic gases with visual identification of the dynamic absorption capacity “response” moment (IFCS-I) during the absorption of ammonia. Chemisorbents were obtained by impregnation of fibrous carriers with polybasic hydroxyl acid aqueous solutions with adding acid-base indicators (Ind). IFCS-I based on oxyethylenediphosphonic (IFCS-OEDPA-I), citric (IFCS-CA-I), and malic (IFCS-MA-I) acids were used. Azolithine (Az), lakmoid (LA), methyl orange (MO), methyl red (MR), Tropeolin OOO (TrOO

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21

Toledano, Manuel, Inmaculada Cabello, Fátima S. Aguilera, Estrella Osorio, Manuel Toledano-Osorio, and Raquel Osorio. "Improved Sealing and Remineralization at the Resin-Dentin Interface After Phosphoric Acid Etching and Load Cycling." Microscopy and Microanalysis 21, no. 6 (2015): 1530–48. http://dx.doi.org/10.1017/s1431927615015317.

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AbstractThe purpose of this study was to investigate micro-morphology of the resin-dentin inter-diffusion zone using two different single-bottle self-etching dentin adhesives with and without previous acid-etching, after in vitro mechanical loading stimuli. Extracted human third molars were sectioned to obtain dentin surfaces. Two different single-bottle self-etching dentin adhesives, Futurabond U and Experimental both from VOCO, were applied following the manufacturer’s instructions or after 37% phosphoric acid application. Resin-dentin interfaces were analyzed with dye assisted confocal micr

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Piotrowski, Michał, Piotr Maras, Zbigniew Stempień, Radosław Wach, and Marek Kozicki. "Deformable Fricke-XO-Gelatin Radiochromic Dosimeter of Ionizing Radiation and Its Applications in Quality Assurance Tests for Radiation Therapy." Materials 18, no. 13 (2025): 3135. https://doi.org/10.3390/ma18133135.

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This work presents a Fricke radiochromic gel dosimeter with xylenol orange (XO) and a gelatin matrix modified with sorbitol. The dosimeter, combined with 2D scanning using a flatbed scanner and data processing using dedicated software packages, creates a radiotherapy dosimetry measurement system. The dosimeter reacts to ionizing radiation by changing color as a result of the formation of complexes of Fe3+ and XO molecules. It was characterized in terms of thermal and chemical stability and mechanical properties. The presence of sorbitol improved the mechanical and thermal properties of the dos

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23

Liu, Wenjing, Ximing Wang, and Minghui Zhang. "Preparation of highly mesoporous wood-derived activated carbon fiber and the mechanism of its porosity development." Holzforschung 71, no. 5 (2017): 363–71. http://dx.doi.org/10.1515/hf-2016-0198.

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Abstract Wood-derived activated carbon fibers (WACF) with large mesopore volumes have been developed, which were prepared only by H3PO4 as the activator (WACF-P). By carefully controlling the H3PO4 concentration at the 10% level and activation temperature at 700°C, the contribution of mesopore to the total pore volume of WACF reached 87%, which is much higher than those obtained in previous studies on ACF. The porosity development mechanism of WACF-P was interpreted based on the data of pore characteristics, crystallite structure, surface elemental constituents, and surface functional groups.

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Melnikova, G. B., D. V. Sapsaliou, T. N. Tolstaya, et al. "Nanostructured Coatings Based on Langmuir–Blodgett Films of Perfluorodecanoic Acid for Flexible Sensors for the Analysis of Lead Ions in Water." Devices and Methods of Measurements 15, no. 1 (2024): 7–17. http://dx.doi.org/10.21122/2220-9506-2024-15-1-7-17.

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As a result of anthropogenic activities, the environment is polluted by heavy metals. The most important task is to find methods to control their content in water. Track-etched membranes (TeMs) can be relatively easily modified by nanometer layers of functional materials with using the Langmuir‒Blodgett technique, which makes it possible to specifically change the structural, selective properties of the membrane surface and obtain new materials with desired properties. The aim of the work was to develop flexible sensors for the analysis of lead ions in water based on poly(ethylene terephthalat

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Pal, Aniruddha, Kripasindhu Karmakar, Ratan Sarkar, Sk Mehebub Rahaman, Arnab Patra, and Bidyut Saha. "A comprehensive spectral study of dye-surfactant complex formation by Xylenol Orange with selective aqueous micellar media of CPC, rhamnolipids and saponin." Tenside Surfactants Detergents, March 28, 2025. https://doi.org/10.1515/tsd-2025-2663.

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Abstract This study investigates the novel interaction dynamics between the biosurfactant rhamnolipids, saponin (reetha or sapindus saponin), and the conventional surfactant cetylpyridinium chloride (CPC) with the anionic organic dye, Xylenol Orange (XO), in aqueous micellar media. Absorption spectroscopy revealed the strong interactions between XO and CPC, especially in the premicellar concentration range. The formation constants for the dye-surfactant complexes were calculated, shedding light on the nature and strength of these interactions. A comprehensive analysis using DLS, SEM, zeta pote

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Fouda, Safaa R., and Salah A. Hassan. "Impact of LaZnFe2O4 supported NiWO4@D400-MMT@CMS/MMA nanocomposites as a catalytic system in remediation of dyes from wastewater." Scientific Reports 14, no. 1 (2024). http://dx.doi.org/10.1038/s41598-024-61565-7.

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AbstractHerein, a novel nanocomposite based on lanthanum zinc ferrite and nickel tungstate was created by incorporation between (MMT-jeffamine-400) nanoparticles (NPs), chloromethyl styrene as a binder and polymethyl methacrylate monomer using solution polymerization. The as-designed nanocomposites were employed to confiscate xylenol orange “X.O” as an acidic dye and rhodamine B “RhB” as “an amphoteric dye” from colored wastewater. The impact of several parameters such as solution pH, initial dye concentration, the effect of time, and the effect of temperature was explored. The consequences in

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Park, Sung Hyun, Haim Taitelbaum, and Raoul Kopelman. "Competing Elementary Reactions in a Capillary - Two Reaction Fronts Moving in Opposite Directions." MRS Proceedings 543 (1998). http://dx.doi.org/10.1557/proc-543-249.

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AbstractThe behavior of two reaction fronts created in a system of two competing reactions has been investigated using the reaction between xylenol orange (XO) and chromium(III) ion in aqueous solution. Two reaction fronts have been shown to move in opposite directions, which is explained in terms of relative concentrations among three reactant species. This explanation was verified by the observation of only one reaction front for selected different relative concentrations, where both reaction fronts move in unison. As predicted by theory and confirmed by computer simulation, the position (xf

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Pal, Aniruddha, Kripasindhu Karmakar, Ratan Sarkar, Sk Mehebub Rahaman, Arnab Patra, and Bidyut Saha. "Advanced reverse micellar extraction: a high-efficiency approach for sustainable removal of Xylenol Orange from wastewater." Tenside Surfactants Detergents, May 22, 2025. https://doi.org/10.1515/tsd-2025-2675.

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Abstract This study presents an innovative and highly effective reverse micellar liquid-liquid extraction approach for the removal of the anionic dye Xylenol Orange (XO) from aqueous solutions. The extraction process was facilitated by the cationic surfactant cetylpyridinium chloride (CPC), which formed reverse micelles in different organic solvents – toluene, m-xylene, hexane and cyclohexane – allowing selective encapsulation and separation of the dye by gravitational settling. Among the solvents tested, toluene exhibited the highest dye removal efficiency, demonstrating its superior ability

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Yue, Tian‐Cai, Lin Yin, Jian‐Bo Huang, Lu‐Lu Wang, and Duo‐Zhi Wang. "Assembly of a three‐dimensional Cu‐MOF for efficient Fenton‐like degradation of dyes and iodine capture." Applied Organometallic Chemistry, July 12, 2024. http://dx.doi.org/10.1002/aoc.7629.

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A three‐dimensional Cu‐MOF (XJU‐1) was synthesized based on 5‐((4‐[1H‐1,2,4‐triazol‐1‐yl]benzyl)amino)isophthalic acid ligand (H3L), which showed excellent performance for Fenton‐like degradation of organic dyes (rhodamine B [RhB], methylene blue [MB], methyl orange [MO], methyl violet [MV], congo red [CR], malachite green [MG], xylenol orange [XO]). The results demonstrated that XJU‐1 could efficiently activate H2O2 to achieve 100% removal of RhB and MB with the initial concentration of 10 mg/L under 10 W light‐emitting diode ultraviolet light irradiation within 7 and 6 min, respectively. The

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30

Issa, Yousry M., Nora S. Abdel-kader, and Ahmed E. Zahran. "Spectrophotometric Determination of Benzalkonium Chloride using Sulfonphthaleins." International Journal of Pharmaceutical Sciences Review and Research 68, no. 1 (2021). http://dx.doi.org/10.47583/ijpsrr.2021.v68i01.009.

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A highly sensitive method for the quantitative determination of Benzalkonium chloride (BKC), in its pure form and pharmaceutical formulations, is described. The method involves four spectrophotometric ways for the determination of BKC via forming ionassociates with bromocresol green (BCG), bromophenol blue (BPB), bromothymol blue (BTB), and xylenol orange (XO). The study involves characterization of the ion-pairs formed between the BKC and the above-mentioned reagents Using UV-Visible and IR spectroscopy. In order to optimize the reaction conditions, the effects of pH, the quantity of reagent,

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