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Relevant bibliographies by topics / Solvent red 24

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Academic literature on the topic 'Solvent red 24'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Solvent red 24"

1

Azkiya, Noor Isnaini, Shafara Najla Marinda Sukmawanta, and Cucuk Evi Lusiani. "Utilization of Red Dragon Fruit (Hylocereus polyrhizus) Peel Waste as an Alternative Indicator for Acid - Base Titration." Jurnal Teknik Kimia dan Lingkungan 9, no. 1 (2025): 31–37. https://doi.org/10.33795/jtkl.v9i1.6169.

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Titration indicators are organic (generally) or inorganic compounds used in titrations to determine and indicate the end point of a titration. Indicators that are widely used in acid-base titrations are synthetic indicators such as phenolphthalein (PP), methyl red (MM), methyl orange (MO), and phenol red (MF). Apart from being relatively expensive, the use of these indicators also produces chemical waste which can pollute the environment. The solution to overcome this problem is to utilize natural ingredients as a substitute for synthetic indicators. The natural indicator used in this research

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2

Wiyono, Andri Eko, Andrew Setiawan Rusdianto, and Anisa Aprilia. "Karakteristik Ekstrak Pewarna Alami Buah Naga Merah (Hylocereus Polyrhizus) dengan Variasi Rasio Pelarut dan Asam." Jurnal Teknologi dan Industri Pertanian Indonesia 17, no. 1 (2025): 34–43. https://doi.org/10.17969/jtipi.v17i1.34107.

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Dyes are materials that people use for certain purposes. However, the high use of synthetic dyes in non-food products causes environmental pollution and is toxic. Therefore it is necessary to provide another alternative in the form of natural dyes from plants, namely red dragon fruit. This fruit contains anthocyanin as a red dye. Natural dyes are obtained through an extraction process with the same solvent as their properties, such as ethanol. The choice of ethanol to be used as a solvent is usually added with acid to stabilize and optimize the extracted pigments, one of which is citric acid.

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3

Ermiziar, Tarmizi, Saragih Raskita, and Hanum Latifa. "Effect of Citric Acid Addition at Anthocyanin Solubility of Red Color Melinjo Peels in Solvent Ethanol, Hehane and Petroleum Ether." Applied Mechanics and Materials 873 (November 2017): 83–88. http://dx.doi.org/10.4028/www.scientific.net/amm.873.83.

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The result from a research by Ermiziar, et al(2009) shows that the content of anthocyanin pigment in red colour melinjo peels with ethanol solvent is 10.87 %. Anthocyanin structure which consists of Aromatic Hydrocarbons (Benzene) and the R groups that contain OCH3 is a reason why anthocyanin can also be isolated with non-polar solvents. Nevertheless, the acid environment would be desirable to get more contains of anthocyanin and it can be more stable so it can be used as natural dyes. The research objectives are to isolate anthocyanin pigments using, Etanol, hexane solvent and Petroleum Ether

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4

Leung, Chung-Pui, and Silvia Yin-King Tam. "Quantitative determination of solvent red 24 in hydrocarbon oils by derivative spectroscopy." Analyst 110, no. 7 (1985): 883. http://dx.doi.org/10.1039/an9851000883.

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5

Amir, Nur Insani, Arafah Nurfadillah, and Tri Rama Dani. "Potential of Red Algae Eucheuma spinosum as Antibacterial to Pseudomonas aeruginosa." Jambura Medical and Health Science Journal 2, no. 2 (2023): 72–80. http://dx.doi.org/10.37905/jmhsj.v2i2.21581.

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Introduction: Eucheuma spinosum is one of Indonesia's potential marine resources that can be used as an antimicrobial. The red algae E. spinosum contains many secondary metabolites which can inhibit the growth of bacteria. This research aimed to determine the optimum inhibitory power of the red algae extract E. spinosum using n-hexane, ethyl acetate, and methanol solvents in inhibiting the growth of Pseudomonas aeruginosa bacteria.Method: The extraction process uses the maceration method with n-hexane, ethyl acetate, and methanol as solvents. Antibacterial testing was carried out using the pap

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6

M.M., A. HAMED. "Solvent Effect on the Electronic Spectral Characteristics of Neutral Red." Journal of Indian Chemical Society Vol. 70, Mar 1993 (1993): 251–55. https://doi.org/10.5281/zenodo.6070949.

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Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt <em>Manuscript received 24 March 1992, accepted 12 November 1992</em> Solvent Effect on the Electronic Spectral Characteristics of Neutral Red

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7

Zhang, Hong-Mei, Yan-Qing Wang, and Ma-Li Jiang. "A fluorimetric study of the interaction of C.I. Solvent Red 24 with haemoglobin." Dyes and Pigments 82, no. 2 (2009): 156–63. http://dx.doi.org/10.1016/j.dyepig.2008.12.008.

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8

Priyangga, Krisfian Tata Aneka, Yehezkiel Steven Kurniawan, Edi Setiyono, Muhammad Riza Ghulam Fahmi, Hendrik Oktendy Lintang, and Leny Yuliati. "A Fluorescence Study on the Extracts of Red Dragon Fruit Peel in Various Solvents." Indonesian Journal of Natural Pigments 3, no. 2 (2021): 48. http://dx.doi.org/10.33479/ijnp.2021.03.2.48.

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Special attention has been given to red dragon fruit (Hylocereus polyrhizus) because of its unique natural compounds exhibiting wide biological activities. However, the potential use of the red dragon fruit peel has been less addressed. In the present work, simple extraction of red dragon fruit peel was carried out to study the fluorescence properties of the corresponding extracts in various solvents. The red dragon fruit peel was first separated, dried, and macerated for 24 hours using distilled water, ethanol, and acetone, separately. The results demonstrated that the peel extracts exhibited

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9

Araújo, Auryclennedy Calou de, Josivanda Palmeira Gomes, Francilânia Batista da Silva, et al. "Optimization of Extraction Method of Anthocyanins from Red Cabbage." Molecules 28, no. 8 (2023): 3549. http://dx.doi.org/10.3390/molecules28083549.

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Among the vegetables that stand out for their high concentration of anthocyanins, red cabbage appears as one of the most-used sources of these pigments in food production and it is considered a suitable raw material for the extraction of natural dye. Therefore, the objective was to carry out the production of natural extracts from red cabbage, under different conditions, varying the solvent, type of pre-treatment, pH range, and processing temperature during the concentration of the extracts. The anthocyanins were extracted from red cabbage using the following solvents: distilled water, 25% eth

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10

Lailani, Tias Suci, Ifah Munifah, and Hermanto Hermanto. "Ekstraksi dan Bioaktivitas Antioksidan Pigmen Fikoeritrin dari Rumput Laut Merah Halymenia sp." Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan 15, no. 2 (2020): 115. http://dx.doi.org/10.15578/jpbkp.v15i2.653.

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Fikoeritrin adalah pigmen dari rumput laut merah Halymenia sp. dengan aktivitas antioksidan yang potensial untuk dikembangkan dalam bidang nutraseutikal. Ekstraksi fikoeritrin dapat dilakuan dengan berbagai jenis pelarut. Namun, penggunaan pelarut yang tidak sesuai dapat berdampak terhadap rendemen, kemurnian, dan juga bioaktivitas ekstrak fikoeritrin. Oleh karena itu, penelitian ini bertujuan untuk mendapatkan jenis pelarut dan durasi waktu ekstraksi (secara maserasi) yang tepat sehingga menghasilkan ekstrak dengan rendemen, kemurnian, dan daya antioksidan fikoeritrin terbaik. Ekstraksi dilak

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Books on the topic "Solvent red 24"

1

Webber, Diane. Do You Read Me?: Famous Cases Solved by Handwriting Analysis! (24/7: Science Behind the Scenes: Forensic Files). Franklin Watts, 2007.

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Do You Read Me?: Famous Cases Solved by Handwriting Analysis! (24/7: Science Behind the Scenes: Forensic Files). Franklin Watts, 2007.

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Book chapters on the topic "Solvent red 24"

1

Turing, Alan. "Memorandum to OP-20-G on Naval Enigma (c.1941)." In The Essential Turing. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780198250791.003.0013.

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The document that forms this chapter was written by Alan Turing and sent to the US Navy codebreaking unit, OP-20-G, in Washington, DC, probably to the celebrated cryptanalyst Mrs Agnes Driscoll. It is undated, but was probably dispatched in the autumn of 1941. Turing solved the indicating system of the principal Naval Enigma cipher, Heimisch (codenamed ‘Dolphin’ by the Government Code and Cypher School (GC & CS)), at Bletchley Park by the end of 1939. Typically, he thought Dolphin ‘could be broken because it would be so interesting to break it’ (see ‘Enigma’, p. 257).Hut 8 at Bletchley Par

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Conference papers on the topic "Solvent red 24"

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Jayasuriya, A. Champa, Chiragkumar Shah, Vijay Goel, and Nabil A. Ebraheim. "Characterization of Biomimetic Mineral Coated 3D PLGA Scaffolds." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14877.

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The bone-like carbonate apatite (BLCA) coatings can be coated biomimetically in the polymer surfaces by soaking in the simulated body fluid (SBF). This SBF contains similar ionic constituents to human blood plasma. Micro-porous 3D poly(lactic-co-glycolic acid) PLGA scaffolds were fabricated by the solvent casting/salt leaching technique using chloroform to dissolve the polymer. We accelerated the deposition of mineral on scaffolds for 1-2 days, modifying the mineralization process using surface treatments and 5x SBF. These scaffolds were analyzed by Scanning Electron Microscopy (SEM), Fourier

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2

Valizadeh, Mojtaba, Philip John Gorinski, Ignacio Iacobacci, and Martin Berger. "Correct and Optimal: The Regular Expression Inference Challenge." In Thirty-Third International Joint Conference on Artificial Intelligence {IJCAI-24}. International Joint Conferences on Artificial Intelligence Organization, 2024. http://dx.doi.org/10.24963/ijcai.2024/717.

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We propose regular expression inference (REI) as a challenge for code/language modelling, and the wider machine learning community. REI is a supervised machine learning (ML) and program optimisation task, and poses the problem of finding minimal regular expressions from examples: Given two finite sets of strings P and N and a cost function cost(·), the task is to generate an expression r that accepts all strings in P and rejects all strings in N , while no other such expression r′ exists with cost(r′) < cost(r). REI has advantages as a challenge problem: (i) regular expressions are well-kno

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Horn, Franklin, Aurelia Alston, and Won J. You. ""More to Read" at the Los Angeles Times: Solving a Cold Start Problem with LLMs to Improve Story Discovery." In RecSys '24: 18th ACM Conference on Recommender Systems. ACM, 2024. http://dx.doi.org/10.1145/3640457.3688031.

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Lamba, Ravita, Mehdi Zeyghami, David Young, D. Yogi Goswami, and S. C. Kaushik. "Thermal Modeling of a Building Integrated Radiative Cooler for Space Cooling Applications." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-87456.

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Recent developments of plasmonic emitters that emit infra-red radiation in the range of 8–13 micron wavelengths that can be transmitted through the atmosphere have opened up the potential of cooling buildings passively by radiating heat through this atmospheric window into the deep space. This paper presents an analysis of the potential of this method to cool buildings radiatively 24 hours per day. Air conditioning units consume a large amount of electricity and are the main drivers of peak electricity loads. A transient thermal model of a building integrated radiative cooling (BIRC) system wa

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Brandão, Igor Yannick das Neves Vasconcellos, Atilio Akihiro Munakata, Felipe Franco Motta, Yasmin Tavares de Souza, and Danielle Maass. "BIOMINERAÇÃO DE METAIS PRESENTES EM PLACAS DE CIRCUITO IMPRESSO (PCI) POR Rhodococcus erythropolis ATCC 4277." In I Congresso Brasileiro de Biotecnologia On-line. Revista Multidisciplinar de Educação e Meio Ambiente, 2021. http://dx.doi.org/10.51189/rema/816.

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Introdução: Com os recentes avanços tecnológicos, metais presentes em equipamentos eletroeletrônicos (REE) são descartados muitas vezes, incorretamente, levando ao desperdício de matéria-prima metálica e acarretando na necessidade de repensar as formas de reciclagem, principalmente para materiais com altos índices de metal, como placas de circuito impresso (PCI). Atualmente, os processos para reaver metais são físico-químicos envolvem uso de alta quantidade de energia, além de emitir gases tóxicos à atmosfera ou fazer uso de diversos solventes químicos nocivos. Visando técnicas mais amigáveis

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