Academic literature on the topic 'Thorium nitrate'

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Journal articles on the topic "Thorium nitrate"

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H., N. Sheikh, L. Kalsotra B., and Shree Khema. "Complexes of thorium(IV) salts with morpholinomethylurea and related ligands." Journal of Indian Chemical Society Vol. 80, Oct 2003 (2003): 909–11. https://doi.org/10.5281/zenodo.5839340.

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Department of Chemistry, University of Jammu, Jammu-180 006, India <em>E-mail : </em>kalsotrabl@rediffmail.com <em>Manuscript received 22 April 2002, revised 12 May 2003, accepted 17 June 2003</em> Complexes of thorium(IV) halides and thorium(IV) nitrate with morpholinomethylurea and related ligands have been syn&shy;thesized. The studies reveal 1 : 1 complexes of thorium nitrate, thorium chloride and thorium bromide with the ligands whereas thorium iodide forms 1 : 4 complexes. The ligands are bidentate coordinating through heterocyclic N and carbonyl O (or thiocarbonyl S) in 1 : 1 complexes,
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Gupta, R., S. K. Gupta, and S. K. Aggarwal. "Novel synthesis and characterization of nanocrystalline thoria from oxalate precursor via reverse micellar route." Radiochimica Acta 101, no. 1 (2013): 7–12. http://dx.doi.org/10.1524/ract.2013.1988.

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Abstract Nanoparticles of thorium oxalate were synthesized by the reaction of thorium nitrate and ammonium oxalate by the microemulsion method. The Th02 nanoparticles were obtained by heating thorium oxalate nanoparticles at 500 °C in air. The oxalate and oxide nanoparticles of thorium were characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD), thermogravimetric analysis (TGA) and selected area electron diffraction (SAED). X-ray diffraction studies showed the mono-phasic nature of the powder thoria. The particle size was obtained from X-ray line broadening (~l
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Novoselov, I. Yu. "SYNTHESIS OF URANIUM-THORIUM OXIDE POWDERS IN LOW-TEMPERATURE PLASMA OF HIGH FREQUENCY TORCH DISCHARGE." Eurasian Physical Technical Journal 19, no. 1 (39) (2022): 50–54. http://dx.doi.org/10.31489/2022no1/50-54.

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The article discusses the process of plasma chemical synthesis of uranium-thorium oxide powders for a new generation dispersion nuclear fuel. In the course of research, the combustion parameters of the precursors were calculated. Precursors were water-organic nitrate solutions based on uranyl nitrate and thorium nitrate (fissile components), as well as magnesium nitrate (matrix material). The organic component of the solutions was acetone due to the sufficiently high calorific value and good mutual solubility. In the course of thermodynamic calculations, the optimal modes of processing of the
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Abrão, Alcı́dio, Antonio Alves de Freitas, and Fatima Maria Sequeira de Carvalho. "Preparation of highly pure thorium nitrate via thorium sulfate and thorium peroxide." Journal of Alloys and Compounds 323-324 (July 2001): 53–56. http://dx.doi.org/10.1016/s0925-8388(01)00998-7.

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Li, Yuxiang, Zhehui Weng, Yanlong Wang, et al. "Centrosymmetric and chiral porous thorium organic frameworks exhibiting uncommon thorium coordination environments." Dalton Transactions 44, no. 48 (2015): 20867–73. http://dx.doi.org/10.1039/c5dt03363b.

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The solvothermal reaction of thorium nitrate and tris-(4-carboxylphenyl)phosphine oxide in DMF affords a centrosymmetric porous thorium organic framework compound [Th(TPO)(OH)(H<sub>2</sub>O)]·8H<sub>2</sub>O (1).
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N., Gopalakrishna Bhat, and Narayana B. "Indirect complexometric determination of thorium(IV) using tartaric acid as masking agent." Journal of Indian Chemical Society Vol. 89, Mar 2012 (2012): 427–28. https://doi.org/10.5281/zenodo.5760339.

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Department of Chemistry, Srinivas Institute of Technology, Valachil, Mangalore-574 143, Karnataka, India E-mail : shreedakumar@yahoo.co.in Manuscript received 05 October 2009, revised 07 July 2011, accepted 21 July 2011 A complexometric method for the determination of thorium(IV) in presence of other metal ions based on the selective masking ability of tartaric acid towards thorium is described. Thorium(IV) present in a given sample solution is first complexed with a known excess of EDTA and the surplus EDTA is titrated against bismuth nitrate solution at pH 2-3 using xylenol orange as indicat
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K., N. MOHANA, S. Y. ATHIRAJAN H., and RANGASWAMY. "Conductometric Study of the Interaction of Bromamine-B with Silver(I), Mercury(II), Thorium(IV) and Zirconium(IV) Solutions." Journal of Indian Chemical Society Vol. 74, Oct 1997 (1997): 765–68. https://doi.org/10.5281/zenodo.5896725.

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Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore-570 006 <em>Manuscript received 28 May 1996, accepted 5 December 1996</em> Bromamine-B forms simple salts with silver nitrate and mercuric chloride in aqueous solutions, while thorium chloride, thorium nitrate and zirconium oxychloride react with BAB in aqueous solution to form dibromamine-B. The reactions have been explained by performing conductometric and pH-tilrations, thereby substantiating the formation of the free acid, <em>N</em>-bromobcnzenesulphonamide.
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Safiulina, Alfiya M., Alexey V. Lizunov, Aleksandr A. Semenov, et al. "Recovery of Uranium, Thorium, and Other Rare Metals from Eudialyte Concentrate by a Binary Extractant Based on 1,5-bis[2-(hydroxyethoxyphosphoryl)-4-ethylphenoxy]-3-oxapentane and Methyl Trioctylammonium Nitrate." Minerals 12, no. 11 (2022): 1469. http://dx.doi.org/10.3390/min12111469.

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Eudialyte-group minerals are of scientific interest as important concentrators of rare elements (mainly Zr and REE) in agpaitic alkaline rocks and a potential source of REE, Zr, Hf, Nb, and Ta for industrial use. Extraction of uranium(VI), thorium(IV), zirconium(IV), hafnium(IV), titanium(IV), and scandium(III) by a binary extractant based on 1,5-bis[2-(hydroxyethoxyphosphoryl)-4-ethylphenoxy]-3-oxapentane and methyl trioctylammonium nitrate from eudialyte breakdown solutions is studied. Extraction isotherms were obtained and exhaustive extraction was investigated. It is shown that uranium, th
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Stradling, G. N., J. C. Moody, S. A. Gray, M. Ellender, and A. Hodgson. "The Efficacy of DTPA Treatment after Deposition of Thorium Nitrate in the Rat Lung." Human & Experimental Toxicology 10, no. 1 (1991): 15–20. http://dx.doi.org/10.1177/096032719101000103.

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The efficacy of CaDTPA and ZnDTPA, the chelating agents of choice for several actinide elements, have been evaluated after the deposition of thorium in the rat lung in widely different amounts. The results showed that: 1 When the initial mass concentration of thorium simulated human exposure to four times the annual limits on intake for 232Th, the prompt (300 or 1000 μmol kg -1 body weight at 0.02 d) or repeated (30 or 300 μmol kg-1 body weight at 0.02, 0.25, 1,2,3 d) administration of CaDTPA were at best only moderately successful for enhancing the elimination of thorium. By 7 d after exposur
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Wangle, Tadeas, Vaclav Tyrpekl, Thierry Delloye, et al. "Homogeneous hydrolysis of thorium by thermal decomposition of urea." Radiochimica Acta 106, no. 8 (2018): 645–53. http://dx.doi.org/10.1515/ract-2017-2871.

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Abstract Thorium was precipitated homogeneously from a thorium nitrate solution by the thermal decomposition products of urea. The kinetics of the hydrolysis were studied at 90 and 100°C by pH measurement during the initial 5 h and the precipitation efficiencies of thorium and radium were measured over a 24 h period. Precipitation of the radium daughters was closely followed with the aim of co-precipitation of radium with thorium. The CO2 formed during urea decomposition dissolved in the solution, forming CO32− during the experiment upon reaching a sufficiently high pH level (&gt;7). This allo
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Dissertations / Theses on the topic "Thorium nitrate"

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JUNIOR, ILFRAN DA SILVA NAVA. "SELECTIVE DETERMINATION OF FLUORQUINOLONES FOR CELLULOSE SURFACE ROOMTEMPERATURE PHOSPHORIMETRY WHITH THORIUM NITRATE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2007. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=10720@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Neste trabalhou desenvolveu-se métodos analíticos baseados na fosforimetria em temperatura ambiente em substrato sólido (FTASS) para determinação seletiva de fluorquinolonas. Mais especificamente, avaliou-se a viabilidade do uso do nitrato de tório como sal de átomo pesado indutor de fosforescência visando a determinação seqüencial de norfloxacino (NOR) e levofloxacino (LEV), determinação seletiva de NOR em presença de ciprofloxacino (CIP), assim como a determinação seletiva de CIP em presença de gatifloxacino (GAT) ou mox
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Elhag, Elmughera Hussein Salim. "Development and study of a Thoron (Rn-220) standard source." University of Western Cape, 2019. http://hdl.handle.net/11394/8223.

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Philosophiae Doctor - PhD<br>Thoron Rn-220 is a radioactive gas with a half-life of 55.6 s. It has been identified as a possible health concern in specific places such as monazite processing plants and (rare-earth) mines. The short half-life of Rn-220 makes Rn-220 calibration sources and chambers less common than for the isotope Rn-222. There are many Rn-220 standard sources and chambers that are widely described in the literature and used for different applications and calibration. However, some of these chambers and sources are not easy to set up in typical nuclear environmental laboratories
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PEREIRA, WALTER. "Transformacao de sulfato de torio em nitrato de torio por resina de troca ionica." reponame:Repositório Institucional do IPEN, 1991. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10266.

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GOMES, LUCIANO F. "Uso de um misturador-decantador na purificacao de torio proveniente do hidroxido de torio bruto." reponame:Repositório Institucional do IPEN, 2004. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11167.

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VASCONCELLOS, MARI E. de. "Resolucao da mistura torio e terras raras por precipitacao fracionada e tecnologia de troca ionica." reponame:Repositório Institucional do IPEN, 2000. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9276.

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Dulong, Florian. "Nouveaux ligands β-diiminates fonctionnalisés et éléments f". Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00904921.

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Les ligands β-diiminates sont des plateformes intéressantes utilisées en chimie de coordination en particulier pour la catalyse homogène, leurs paramètres électroniques et géométriques facilement ajustables les rendant particulièrement attractifs. Toutefois, ces modifications sont limitées à l'introduction de bases de Lewis neutres (éthers, amines tertiaires) sur les substituants portés par les atomes d'azote du squelette β-diiminate. L'objectif principal de ce travail de thèse porte sur le dépassement de telles limitations avec la synthèse de nouveaux ligands β-diiminates fonctionnalisés par
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SENEDA, JOSE A. "Separação e recuperação de chumbo-208 dos resíduos de tório terras raras gerados na unidade piloto de purificação de nitrato de tório." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11424.

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Made available in DSpace on 2014-10-09T12:51:45Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:08:59Z (GMT). No. of bitstreams: 0<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Seneda, José Antonio. ""Separação e recuperação de Chumbo-208 dos resíduos de Tório e Terras Raras gerados na Unidade Piloto de purificação de Nitrato de Tório"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-04062007-160337/.

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O Brasil tem uma longa tradição na tecnologia do tório, desde a abertura do principal mineral, a monazita, até compostos de pureza grau nuclear, com reservas minerais estimados em 1.200.000 ton – ThO2. Como conseqüência desta produção, foi acumulado um resíduo produzido na unidade piloto de purificação de nitrato de tório, do Instituto de Pesquisas Energéticas e Nucleares- CNEN/SP, mais de 25 toneladas ao longo das últimas três décadas, proveniente dos rafinados e soluções de lavagem do processo de extração por solventes, conhecido como RETOTER. Sua composição, um hidróxido, contendo tório, te
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Books on the topic "Thorium nitrate"

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S, Dhami P., Bhabha Atomic Research Centre, and India Atomic Energy Commission, eds. Studies on the physio-chemical parameters of extraction and stripping of thorium nitrate from thorex raffinate using 38% TBP in N-dodecane. Bhabha Atomic Research Centre, 2008.

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Book chapters on the topic "Thorium nitrate"

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of hetero-metallic, trinuclear dinickel(II)-thorium(IV) nitrato complex with nickel(II) Schiff-base complex as ligand." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 3. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62470-8_302.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of hetero-metallic, trinuclear dicopper(II)-thorium(IV) nitrato complex with copper(II) Schiff-base complex as ligand." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 4. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62474-6_587.

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Brown, D., G. W. A. Fowles, R. A. Walton, and Louis Centofanti. "Hexahalogeno Salts and Alkyl Nitrile Complexes of Titanium(IV), Zirconium(IV), Niobium(V), Tantalum(V), Protactinium(IV and -V), Thorium(IV), and Uranium(IV)." In Inorganic Syntheses. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132432.ch38.

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Conference papers on the topic "Thorium nitrate"

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Pardue, J. E. "Results of Field Tests with a New Extended Squeeze Life Scale Inhibitor." In CORROSION 1992. NACE International, 1992. https://doi.org/10.5006/c1992-92035.

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Abstract Very good results have been obtained from field tests using a scale inhibitor new to the oilfield. This product, a phosphinico polycarboxylate, is especially beneficial for precipitation squeeze treatments. Due to its low calcium salt solubility, extended squeeze treatment lifetimes are being obtained. The chemical is presently being used to inhibit both calcium carbonate and barium sulfate. This paper presents the results of four field tests with the product, one from a location in Texas and three from a location at the North Slope of Alaska. At all locations, only around five percen
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Li, Jing, Yan Chen, and Yong Cai Zhang. "Two thermolysis routes to ThO2 nanoparticles from thorium nitrate." In 2nd International Conference on Electronic and Mechanical Engineering and Information Technology. Atlantis Press, 2012. http://dx.doi.org/10.2991/emeit.2012.302.

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Nurlina and Zaki Su’ud. "Neutronic analysis of thorium nitride and thorium-plutonium nitride fuel for 200 MWth long-life pressurized water reactor." In THE 4TH INTERNATIONAL CONFERENCE ON MATHEMATICS AND SCIENCE EDUCATION (ICoMSE) 2020: Innovative Research in Science and Mathematics Education in The Disruptive Era. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0037503.

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Schmitz, Joel, and Michael Heaven. "LASER-INDUCED FLUORESCENCE (LIF) OF JET-COOLED THORIUM NITRIDE (ThN)." In 74th International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2019. http://dx.doi.org/10.15278/isms.2019.wd01.

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Sergentu, D., G. Wu, J. Autschbach, T. Hayton, and S. Staun. "Use of 15N NMR Spectroscopy to Probe Covalency in a Thorium Nitride." In 2020 ANS Virtual Winter Meeting. AMNS, 2020. http://dx.doi.org/10.13182/t123-33081.

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Le, Anh, Lan Cheng, Timothy Steimle та Duc-Trung Nguyen. "HIGH RESOLUTION SPECTROSCOPY OF THE [18.0]2Π3/2 - X2Σ+ TRANSITION OF THORIUM NITRIDE, ThN". У 73rd International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2018. http://dx.doi.org/10.15278/isms.2018.wf08.

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Mayanti, Ridha, Menik Ariani, and Fiber Monado. "STUDI PARAMETER BURNUP SEL BAHAN BAKAR BERBASIS THORIUM NITRIDE PADA REAKTOR CEPAT BERPENDINGIN HELIUM." In SEMINAR NASIONAL FISIKA 2017 UNJ. Pendidikan Fisika dan Fisika FMIPA UNJ, 2017. http://dx.doi.org/10.21009/03.snf2017.02.tpn.01.

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Trianti, Nuri, Zaki Su'ud, Idam Arif, and EkaSapta Riyana. "Preliminary design study of small long life boiling water reactor (BWR) with tight lattice thorium nitride fuel." In 4TH INTERNATIONAL CONFERENCE ON ADVANCES IN NUCLEAR SCIENCE AND ENGINEERING (ICANSE 2013). AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4895866.

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Reports on the topic "Thorium nitrate"

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Hylton, TD. Thorium Nitrate Stockpile Drum Characterization Report. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/840085.

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Mattus, CH. Analytical Characterization of the Thorium Nitrate Stockpile. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/840088.

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Terry, J. W. Potential Radon-222 Emissions from the Thorium Nitrate Stockpile. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/840087.

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Marsh, S. F., B. J. Phillips, E. A. Aldaz, and W. E. Williams. Separation of thorium impurity from plutonium in the nitrate anion exchange process. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/6437364.

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พงษ์สามารถ, สุนันท์, та นรานินทร์ มารคแมน. การสกัดสารคล้ายเพคตินและการทำให้บริสุทธิ์จากเปลือกผลไม้ไทย : รายงานวิจัย. จุฬาลงกรณ์มหาวิทยาลัย, 1989. https://doi.org/10.58837/chula.res.1989.5.

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การสกัดสารคล้ายเพคตินจากเปลือกผลไม้ไทย 2 ชนิด คือ เปลือกทุเรียน (Durio zibethinus) และเปลือกส้มโอ (Citrus maxima Merr.) และจากผลไม้ 2 ชนิด คือ พุทรา (Zizyphus mauritiana Lamk.) และฝรั่ง (Psidium guajava Linn.) โดยการตกตะกอน aqueous extracts ของผลไม้ตัวอย่างใน 60% alcohol ได้สารสกัด crude extracts ของผลเท่ากับ 0.8% 0.6% 1.7% และ 0.9% ตามลำดับ การเติมโซเดียมเฮกซาเมตฟอสเฟต (Sodium hexametaphosphate) ขณะทำ aqueous extraction สามารถช่วยเพิ่ม yield ของการสกัดสารคล้ายเพคติตจากเปลือกทุเรียนทำให้ได้สารสกัด crude fraction (F I) เป็น 2.18% yield การทำสารสกัดเปลือกทุเรียนให้บริสุทธิ์โดยตกตะกอนด้วย 75% alc
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