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Journal articles on the topic 'EDTA and oxalate'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Al Sheidi, Ammar S. A., Laurence G. Dyer, and Bogale Tadesse. "Leaching Efficacy of Ethylenediaminetetraacetic Acid (EDTA) to Extract Rare-Earth Elements from Monazite Concentrate." Crystals 14, no. 10 (2024): 829. http://dx.doi.org/10.3390/cryst14100829.

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Alkaline EDTA solution has been previously identified as an effective leaching agent for solubilising rare-earth oxalates. These oxalates are the product of an oxalic acid conversion leach dissolving monazite and redepositing the salt. Pervious work suggested a significant increase in recovery was observed between pH 8 and 10; we have demonstrated that, in an excess of EDTA, this is not the case, and the dissolution is similar. While demonstrating that, at a nominal solid loading of 100 g/L, 0.2 M EDTA solution produced the highest dissolution, elevated solids require an equivalent increase in

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2

Fuentes, Edwar, Hugo Pinochet, Martine Potin-Gautier, and Ida De Gregori. "Fractionation and Redox Speciation of Antimony in Agricultural Soils by Hydride Generation–Atomic Fluorescence Spectrometry and Stability of Sb(III) and Sb(V) During Extraction with Different Extractant Solutions." Journal of AOAC INTERNATIONAL 87, no. 1 (2004): 60–67. http://dx.doi.org/10.1093/jaoac/87.1.60.

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Abstract This stability of Sb(III) and Sb(V) species was studied during single extraction from soils by water. EDTA, diluted H2SO4 and H3PO4, and oxalic acid/oxalate solutions, with and without ascorbic acid, were used as stabilizing reagent of both Sb species. Antimony redox speciation in soil extracts was performed by selective hydride generation–atomic fluorescence spectrometry. Simulated extraction procedures (without soil) showed that, except in oxalate medium, Sb(III) was oxidized to Sb(V), and this reaction was avoided with ascorbic acid. Recovery studies from a spiked agricultural soil

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3

Thode, J., C. Amyx, R. Valdes, and G. Kessler. "Effect of tetrasodium EDTA on enzymatic determinations of urinary oxalate." Clinical Chemistry 33, no. 6 (1987): 833–35. http://dx.doi.org/10.1093/clinchem/33.6.833.

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Abstract We studied the effects of pretreating urine samples with tetrasodium EDTA (TEDTA) before measuring urinary oxalate with an enzymatic kit (Sigma). Mean analytical recovery of added oxalic acid was only 49% (SD +/- 13%) when the assay was performed as recommended by the manufacturer, but treating samples with TEDTA improved recoveries (96 +/- 10%). In 20 unselected 24-h urine samples assayed with and without TEDTA treatment, the mean oxalate concentrations were significantly (P less than 0.001) different: 15.6 +/- 8.7 and 12.2 +/- 7.9 mg/L, respectively. TEDTA-treated urine samples stor

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4

Sushil, Thapa, Pradhananga Mahalaxmi, and Banerjee Janmajoy. "EFFECT OF PRE-TREATMENT ON REDUCTION OF OXALIC ACID ON SPINACH POWDER." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 4, no. 8 (2017): 96–103. https://doi.org/10.5281/zenodo.848122.

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This research focus to see the effect of different pre-treatment on reduction of oxalic acid content of Spinach having the oxalate content as 0.937% on dry basis. Spinach was first dried at temperature of 60<sup>°</sup>C, 70°C and 80°C. Dried samples were rehydrated for 2 hours before processing. Different treatments such as hot water blanching reduce the oxalate content upto 14.72%, NaCl treatment upto 23.79% and EDTA blanching which reduces the oxalate content upto 66.92%. EDTA blanching at 2mMol concentration was significantly superior (p<0.05); was subjected to chemical analysis. Raw sp

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5

Chalmers, A. H., D. M. Cowley, and B. C. McWhinney. "Stability of ascorbate in urine: relevance to analyses for ascorbate and oxalate." Clinical Chemistry 31, no. 10 (1985): 1703–5. http://dx.doi.org/10.1093/clinchem/31.10.1703.

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Abstract Ascorbate is unstable in urine at room temperature at pH values ranging from 1 to 12. At pH 7 and above, oxalate is generated in amounts directly proportional to the ascorbate concentration. In 12 different urines, adjusted to pH 12 and incubated for 20 h at room temperature, there was a significant correlation between the amount of oxalate formed and the initial ascorbate concentration (r = 0.97, p less than 0.01). The mean (+/- SD) concentration of oxalate (1.32 +/- 0.70 mmol/L) formed during this period approximated the initial ascorbate concentration (1.57 +/- 1.09 mmol/L). Disodi

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6

Chen, Jian Xin, Zhao Ji Hu, Xue Xia Yuan, Yan Hong Yao, Jun Li, and Kai Yi Zeng. "Effects of Organic Acid Radicals on Degradation of Orange II in UV-Fenton System with Hydroxyl-Fe-Pillared Bentonite as Catalyst." Advanced Materials Research 159 (December 2010): 172–75. http://dx.doi.org/10.4028/www.scientific.net/amr.159.172.

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In this paper, the effects of organic acid radicals on degradation of Orange II in UV-Fenton system with hydroxyl-Fe-pillared bentonite as catalyst were studied in detail. The results showed that the rate constants of UV-Fenton reaction will decrease when the system contains sodium citrate or sodium malonate. While the rate of Orange II degradation in UV-Fenton system could increase up to 33.3% and 41.7% when EDTA and sodium oxalate were present, respectively. As the additional TOC of EDTA is higher than sodium oxalate, adding sodium oxalate is a more promising enhanced method for Orange II de

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7

IGBOKWE, I. O., and N. M. SANU. "THE STABILITY OF THE PACKED CELL VOLUME OF ANTICOAGULATED BOVINE BLOOD STORED AT REFRIGERATION TEMPERATURE." Nigerian Journal of Animal Production 18 (January 12, 2021): 111–12. http://dx.doi.org/10.51791/njap.v18i.2010.

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Bovine blood samples with ethylene diamine tetra-acetate (EDTA) or oxalate as anticoagulant were stored at refrigeration temperature of 4°C. The packed cell volume (PCV) was determined daily. During storage, the PCV did not vary significantly. Complete haemolysis, suggested by failure of blood samples to separate into cellular and plasma fractions, started occuring in samples on days 28 and 17, and was observed to have occurred in all samples on days 41 and 24 in blood with EDTA and oxalate respectively.

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8

Gómez-Toribio, Víctor, Ana B. García-Martín, María J. Martínez, Ángel T. Martínez, and Francisco Guillén. "Enhancing the Production of Hydroxyl Radicals by Pleurotus eryngii via Quinone Redox Cycling for Pollutant Removal." Applied and Environmental Microbiology 75, no. 12 (2009): 3954–62. http://dx.doi.org/10.1128/aem.02138-08.

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ABSTRACT The induction of hydroxyl radical (OH) production via quinone redox cycling in white-rot fungi was investigated to improve pollutant degradation. In particular, we examined the influence of 4-methoxybenzaldehyde (anisaldehyde), Mn2+, and oxalate on Pleurotus eryngii OH generation. Our standard quinone redox cycling conditions combined mycelium from laccase-producing cultures with 2,6-dimethoxy-1,4-benzoquinone (DBQ) and Fe3+-EDTA. The main reactions involved in OH production under these conditions have been shown to be (i) DBQ reduction to hydroquinone (DBQH2) by cell-bound dehydrogen

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9

Johnston, Donald E., and Robert J. Murphy. "Effects of some calcium-chelating agents on the physical properties of acid-set milk gels." Journal of Dairy Research 59, no. 2 (1992): 197–208. http://dx.doi.org/10.1017/s0022029900030442.

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SummaryAcid-set milk gels containing up to 30 mM added hexametaphosphate, oxalate, citrate, EDTA or orthophosphate were prepared using gluconic acid-δ-lactone and their properties investigated. Increases in the apparent shear modulus were observed in the gels containing hexametaphosphate, oxalate, citrate and EDTA. The effect was maximum for hexametaphosphate-containing gels at ˜ 8 mM. Increases were also observed in the force required to break the gels, and for added hexametaphosphate the effect peaked at ˜ 5 niM. The ability of the gels to resist syneresis was investigated by a cut, tip and

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10

He, Junbin, Rihui Lin, He Li, et al. "Adsorption of EDTA onto calcium oxalate monohydrate." RSC Advances 5, no. 105 (2015): 86795–802. http://dx.doi.org/10.1039/c5ra16498b.

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11

Niskanen, Raina. "Extractable aluminium, iron and manganese in mineral soils: I Dependence of extractability on the pH of oxalate, pyrophosphate and EDTA extractants." Agricultural and Food Science 61, no. 2 (1989): 73–78. http://dx.doi.org/10.23986/afsci.72355.

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Al, Fe and Mn in two mineral soils were extracted by 0.05 M and 0.02 M oxalate and pyrophosphate and 0.02 M EDTA solutions the pH of which was adjusted to values ranging from 1.7 to 11.0. The extractability of metals tended to decrease as the pH rose and as the deprotonation of extractant acid, expressed as pKa values, progressed. The reduction in extractability of metals by oxalate was rather steep at pH > 4, whereas the extractability by pyrophosphate remained moderate at a wider pH range. The extractability of metals by EDTA (pH 3.6—7.3) was lower than that by oxalate and pyrophosphate.

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12

Henderson, Mark Stephen, Laurence Gerald Dyer, and Bogale Tadesse. "Challenges in Resolubilisation of Rare Earth Oxalate Precipitates Using EDTA." Crystals 15, no. 2 (2025): 103. https://doi.org/10.3390/cryst15020103.

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The two-stage process for the treatment of rare earth phosphate minerals, involving an oxalic acid conversion leach and subsequent EDTA dissolution, has been demonstrated as a promising alternative to conventional extraction methods. To underpin a more detailed understanding, this work serves to further develop knowledge of the linkage between the stages and key practical aspects of the operation of the EDTA dissolution. A more detailed treatment of the phenomena observed in the EDTA treatment, characteristics of the solids, mass loss in dissolution, and the impact of parameter alterations in

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13

Schrezenmeier, Hubert, Hilke Müller, Eberhard Gunsilius, Hermann Heimpel, and Erhard Seifried. "Anticoagulant-induced Pseudothrombocytopenia and Pseudoleucocytosis." Thrombosis and Haemostasis 73, no. 03 (1995): 506–13. http://dx.doi.org/10.1055/s-0038-1653805.

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SummaryPseudothrombocytopenia (PTP) is the phenomenon of falsely low platelet counts due to in vitro platelet clumping in the presence of platelet autoantibodies and anticoagulants. We assessed anticoagulant- dependence, time course of platelet counts and impact of different counter devices on the phenomenon. Blood of 10 persons with previously recognized pronounced EDTA-dependent PTP was collected into 7 different anticoagulants and counted after different intervals in parallel in a Coulter T540 and a Coulter STKS counter and by phase contrast microscopy. With the Coulter T540 model PTP was m

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14

Maulidiyanti, Ellies Tunjung Sari, Fitrotin Azizah, Tri Ade Saputro, and Firdausi Nuzula. "Penggunaan Berbagai Jenis Antikoagulan Terhadap Mutu Hasil Pemeriksaan Activated Partial Thromboplastine Time (APTT)." JOURNAL OF MUHAMMADIYAH MEDICAL LABORATORY TECHNOLOGIST 5, no. 1 (2022): 91. http://dx.doi.org/10.30651/jmlt.v5i1.14604.

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Activated Partial Thromboplastine Time (APTT) is a type of hemostasis examination with citrate anticoagulant 3.2% ratio 1:9. Ethylene Diamine Tetraacetic Acid (EDTA) is one of the examination materials for hematology which is often used as an anticoagulant. Apart from EDTA, other types of anticoagulants are sodium citrate and potassium oxalate. The three anticoagulants work to bind calcium ions. The purpose of this examination is to determine the use of various anticoagulants on the quality of the results of the Activated Partial Thromboplastine Time (APCT) examination. The method used in this

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15

Al-Obaidy, E. N. J., M. M. Ismail, and M. Z. Muhi. "The Effect of Some Different Blood Anticoagulants on Rabbits Plasma Biochemical Parameters under Different Temperatures." CARDIOMETRY, no. 29 (November 1, 2023): 111–15. http://dx.doi.org/10.18137/cardiometry.2023.29.111115.

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The aim of present study was to compare the effect of Ca chelating anticoagulants (EDTA, citrate and oxalate) and antithrombin anticoagulant (heparin) on some rabbits plasma biochemical parameters at room temperature 25℃ and extreme temperatures -18℃and 50℃ for 1hr. Five male rabbits weighting between 800-1000gm, kept in the animal house /College of Veterinary Medicine/University of Diyala, under 12:12 dark light cycle with ad libtum food and water in individual cages (60cm,40cm) during November and December /2022. Four ml of blood samples were collected by cardiac puncture (23G needle) into f

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16

Niskanen, Raina. "Extractable aluminium, iron and manganese in mineral soils: III Comparison of extraction methods." Agricultural and Food Science 61, no. 2 (1989): 89–97. http://dx.doi.org/10.23986/afsci.72357.

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The extractability of soil Al, Fe and Mn were studied in 102 mineral soil samples. The extractants were 0.05 M oxalate (pH 2.9), 0.05 M K4P2O7 (pH 10), 0.02 M EDTA (pH 5.3) and 1 M CH3COONH4 (pH 4.8). In the group of clay and silt soils (n = 51), the Al extracted by the four extractants correlated closely; the r values ranged from 0.91*** to 0.96***; in coarser soils (n = 51) the r values ranged from 0.42* to 0.82***. In clay and silt soils, the organic carbon content and soil pH together explained 50 % of the variation in oxalate-extractable Al, 70 % of the variation in pyrophosphate-extracta

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17

Beránek, Martin, J. Hegerová, M. Michajlíková, P. Dulíček, and V. Palička. "Technical Notes No Inhibitory Effect of Heparinized Blood on Real-Time PCR Analysis of Thrombophilic Mutations." Folia Biologica 68, no. 5 (2022): 201–5. http://dx.doi.org/10.14712/fb2022068050201.

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We compared the efficiency of real-time PCR analysis of FII (c.*97G>A, G20210A) and FV Leiden (c.1601G>A) thrombophilic mutations in the samples obtained from venous blood treated with various anticoagulant agents (EDTA, heparin, and sodium fluoride with potassium oxalate), or from clotted venous blood; one hundred samples of wild-type subjects were tested. Genomic DNA extracts and whole blood specimens modified by 90 °C heating were analysed by real-time PCR analysis; cycle threshold values were subsequently evaluated. Real-time PCR analysis for the FII gene assay performed in DNA extr

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18

Verplaetse, H., R. M. H. Verbeeck, A. Verbaeys, and W. Oosterlinck. "Solubility of Calcium Oxalate Monohydrate and Hydroxyapatite in Edta Solutions." Journal of Urology 135, no. 3 (1986): 608–11. http://dx.doi.org/10.1016/s0022-5347(17)45760-0.

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19

Best, EK, GK Manning, and NJ Grundon. "The ability of several soil extractants to identify copper-responsive wheat soils." Australian Journal of Experimental Agriculture 25, no. 4 (1985): 863. http://dx.doi.org/10.1071/ea9850863.

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Tests with six solutions for extracting copper from soil (viz.: 1M ammonium acetate (CH3COONH4); 1M CH3COONH4 + 2% hydroquinone; 0. 5M ammonium oxalate [(NH4)2C2O4]; 0.005M diethylenetriaminepenta-acetic acid + triethanolamine + calcium chloride (DTPA + TEA + CaCl); 0.005MDTPA + 1M ammonium bicarbonate (NH4HCO3); and 0.01M ethylenediaminetetra- acetic acid (EDTA) + 1M NH4HCO3) were examined in both glasshouse and field studies for their ability to predict the responsiveness to copper fertilizer of wheat grown on a wide range of Queensland soils. The ammonium-acetate-based solutions did not ext

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20

Al Salhen, Khaled S., Eman K. Saad, and Aml J. Aznine. "The Effect of Storage Time and Different Anticoagulants on Fasting Blood Glucose Concentration." Al-Mukhtar Journal of Sciences 33, no. 2 (2018): 104–11. http://dx.doi.org/10.54172/mjsc.v33i2.173.

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The comparative stabilizing effects of storage time and the anticoagulants; fluoride oxalate, EDTA, sodium citrate, and serum on ice slurry; on fasting blood glucose level were determined using the spectrophotometry method. Fasting blood samples were taken from 75 non-diabetic male people, and the blood glucose levels determined at 30 min intervals for a maximum time of 3 hours. Our results showed that the rate at which plasma glucose changes with time varies with specific anticoagulants. From the results, it was observed that the rate at which the blood glucose decreases with time vary with s

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21

Sathyanarayana, Shakuntala, Puttaswamy Pramod Kumar, and Keelara Veerappa Harish Prashanth. "Pectic Polysaccharides have Relatively Potent Immunomodulatory Activity Compared to their Hydrolysates from Chickpea (Cicer arietinum L.) Husk." Indian Journal of Nutrition and Dietetics 56, no. 2 (2019): 94. http://dx.doi.org/10.21048/ijnd.2019.56.2.22687.

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In the present study, the immunomodulatory effects of Pectic Polysaccharides (PPs) extracted sequentially using ammonium oxalate and ethylene-diamine-tetraacetic acid (PP-AO and PP-EDTA) and their oligosaccharides (PO-AO and PO-EDTA) from chickpea husk, characterized in our previous study, was investigated using the macrophage cell line, RAW 264.7 at different concentrations. Results showed that treatment with 12.5-100 μg/mL of PP-AO, PP-EDTA, PO-AO and PO-EDTA stimulated macrophage proliferation, nitric oxide production and phagocytosis. The proliferation rate was observed to be increased as

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22

Szirtes, L., J. Megyeri, and E. Kuzmann. "Thermal treatment on tin(II/IV) oxalate, EDTA and sodium inositol-hexaphospate." Journal of Thermal Analysis and Calorimetry 107, no. 3 (2011): 1225–30. http://dx.doi.org/10.1007/s10973-011-1813-1.

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23

Borggaard, Ole K. "Dissolution of Poorly Crystalline Iron Oxides in Soils by EDTA and Oxalate." Zeitschrift für Pflanzenernährung und Bodenkunde 155, no. 5 (1992): 431–36. http://dx.doi.org/10.1002/jpln.19921550513.

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24

Shoesmith, D. W., D. S. Mancey, D. C. Doern, and M. G. Bailey. "Characterization and Dissolution of Deposited Magnetite Films on AISI 304 Stainless Steel Surfaces in EDTA and EDTA/Oxalate Solutions." CORROSION 45, no. 2 (1989): 149–59. http://dx.doi.org/10.5006/1.3577833.

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25

Chen, Xing, Kai Huang, and Cheng-yan Wang. "Facile synthesis of monodispersed copper oxalate flaky particles in the presence of EDTA." International Journal of Minerals, Metallurgy, and Materials 25, no. 7 (2018): 762–69. http://dx.doi.org/10.1007/s12613-018-1624-5.

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26

Niskanen, Raina. "Sorption capacity of phosphate in mineral soils: II Dependence of sorption capacity on soil properties." Agricultural and Food Science 62, no. 1 (1990): 9–15. http://dx.doi.org/10.23986/afsci.72919.

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The dependence of the indicator of phosphate sorption capacity on extractable Al and Fe and other soil properties was studied in a material consisting of 102 mineral soil samples. The sum of P adsorbed on soil during two days from a solution containing P 5 mmol/l and P extracted by 0.02 M EDTA (pH 5.3) as an estimate of the initial P content in the soil was used as the indicator of P sorption capacity. In clay and silt soils (n = 51), the Al and Fe extracted by 0.05 M oxalate (pH 2.9) together with the organic C content explained 85 %, the Al and Fe extracted by 0.05 M K4P2O7 (pH 10) together

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27

Li, Tianyou, Ling Lin, Chongchong Chen, et al. "Insights into a New Formation Mechanism of Robust Cu/SiO2 Catalysts for Low-Temperature Dimethyl Oxalate Hydrogenation Induced by a Chelating Ligand of EDTA." Catalysts 12, no. 3 (2022): 320. http://dx.doi.org/10.3390/catal12030320.

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The Cu/SiO2 catalyst has been widely used in dimethyl oxalate (DMO) hydrogenation due to its low cost and high efficiency. However, the reaction temperature of DMO hydrogenation is higher than the Hüttig temperature of Cu, and the smaller Cu particles are easier to agglomerate. Therefore, there is much interest in constructing a catalyst with a small particle size and strong stability. In the present work, the effect of introducing EDTA on Cu/SiO2 catalysts is systematically investigated. It not only was beneficial to form smaller copper nanoparticles (CuNPs) but also to enhance the stability

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28

Thomas Rinder and Eric H. Oelkers. "On the colorimetric measurement of aqueous Si in the presence of organic ligands and common pH buffering agents." Mineralogical Magazine 78, no. 6 (2014): 1431–36. http://dx.doi.org/10.1180/minmag.2014.078.6.10.

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The effects of the presence of ten organic ligands and common pH buffering agents – acetate, oxalate, tartrate, citrate, phthalate, EDTA, carbonate, TRIS, phosphate and borate – on aqueous Si concentration measurements made using the common molybdate blue method were quantified. The concentrations of these additives ranged from 0.01 to 0.1 mol/kg in the measured aqueous solutions. Whereas measured Si concentrations were not affected by the presence of up to 0.1 mol/kg acetate, hydrogen phthalate or TRIS, the presence of 0.1 mol/kg of all other selected additives altered substantially the measu

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29

Modenesi, P., V. Bombardi, P. Giordani, G. Brunialti, and A. Corallo. "Dissolution of Weddellite, Calcium Oxalate Dihydrate, in Pyxine Subcinerea." Lichenologist 33, no. 3 (2001): 261–66. http://dx.doi.org/10.1006/lich.2001.0321.

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AbstractOn the thalline lobes of Pyxine subdnerea there are delimited patches of pruina consisting of bipyramidal prisms, bipyramids and druses of weddellite, i.e. calcium oxalate dehydrate (COD), as revealed by X-ray analysis and SEM observations. The disappearance of the crystals from older thalline areas is preceded by an increase in the frequency of corrosion figures, in the form of etch square pits, and a decrease in the number of crystals occurring on the thalline surface. These features follow a dissolution gradient from the lobe apex towards the proximal edges of the patches. The corro

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Jiang, Bao, Yibing Ma, Guangyun Zhu, and Jun Li. "A New Model Describing Copper Dose–Toxicity to Tomato and Bok Choy Growth in a Wide Range of Soils." International Journal of Environmental Research and Public Health 16, no. 2 (2019): 264. http://dx.doi.org/10.3390/ijerph16020264.

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Phytotoxicity thresholds for heavy metals are derived from dose–response curves, which show the relationships between exposure dose and toxicity response. However, the results of tests or observations are commonly based on total heavy metal concentration, not the exposure dose that causes phytotoxicity; additionally, the phytotoxicity response differs with plant species. In the present study, the ethylenediaminetetraacetic acid (EDTA)-extractable copper (Cu) concentration was determined in order to evaluate Cu extractability. As two important horticultural food crops in Asia, tomato (Lycopersi

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Aristoteles, Rosmiarti, Cindy Oktariani, and Jefry Ardiansyah. "Differences in Fasting Total Cholesterol Levels in Serum and Plasma Edta Samples Using Biosystem Ba200." Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam 21, no. 2 (2024): 140–43. https://doi.org/10.31851/sainmatika.v21i2.15850.

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Examination of total cholesterol levels in serum samples is more often used as an examination material, but serum samples often encounter difficulties due to insufficient blood volume or the condition of the serum being lysed due to poor sampling. Many studies have been conducted to look at total cholesterol levels using the anticoagulants EDTA, Sodium Citrate, and Sodium Oxalate to look at differences in total cholesterol levels, but not many studies have looked at tests of differences in total cholesterol test results during fasting with serum and EDTA. This study aims to determine differenc

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32

Anju, Rani* Gyanika Shukla Raj Singh Permod Kumar Vineet Girdharwal Chhaya Singh Maneesha Singh. "IN VITRO COMPARATIVE STUDY OF ANTIFUNGAL ACTIVITY OF INORGANIC SALTS AGAINST PLANT PATHOGENIC FUNGI." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 5 (2016): 293–96. https://doi.org/10.5281/zenodo.51420.

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Eight inorganic salts viz., ammonium molybdate, ammonium oxalate, cupric sulphate, EDTA, ferric chloride, ferrous sulphate, potassium meta bi sulphate and zinc sulphate were tested at 10mM concentration by membrane filter and steam sterilization methods against plant pathogenic fungi which damage the crop of potato(main food crop of farmers) viz., Fusarium solani, Fusarium oxysporum, Rhizoctonia solani and Phytophthora infestans. Out of these pathogens, Phytophthora infestans is major disease of potato and spreads epidemically through out the world. All chemicals are effective for R. solani an

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Lv, Fang-Wen, Mei-Xin Hong, Xue-Ting Wang, Haiquan Tian, Chun-Chang Wang, and Xiu-Ying Zheng. "Magnetocaloric Effect in 3D Gd(III)-Oxalate Coordination Framework." Nanomaterials 15, no. 1 (2024): 32. https://doi.org/10.3390/nano15010032.

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Cryogenic magnetic refrigerants based on the magnetocaloric effect (MCE) hold significant potential as substitutes for the expensive and scarce He-3. Gd(III)-based complexes are considered excellent candidates for low-temperature magnetic refrigerants. We have synthesized a series of Ln(III)-based metal-organic framework (MOF) Ln-3D (Ln = Gd/Dy) by the slow release of oxalates in situ from organic ligands (disodium edetate dehydrate (EDTA-2Na) and thiodiglycolic acid). Structural analysis shows that the Ln-3D is a neutral 3D framework with one-dimensional channels connected by [Ln(H2O)3]3+ as

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Moreira, María Teresa, Gumersindo Feijoo, Tünde Mester, Pablo Mayorga, Reyes Sierra-Alvarez, and Jim A. Field. "Role of Organic Acids in the Manganese-Independent Biobleaching System of Bjerkandera sp. Strain BOS55." Applied and Environmental Microbiology 64, no. 7 (1998): 2409–17. http://dx.doi.org/10.1128/aem.64.7.2409-2417.1998.

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ABSTRACT Bjerkandera sp. strain BOS55 is a white rot fungus that can bleach EDTA-extracted eucalyptus oxygen-delignified kraft pulp (OKP) without any requirement for manganese. Under manganese-free conditions, additions of simple physiological organic acids (e.g., glycolate, glyoxylate, oxalate, and others) at 1 to 5 mM stimulated brightness gains and pulp delignification two- to threefold compared to results for control cultures not receiving acids. The role of the organic acids in improving the manganese-independent biobleaching was shown not to be due to pH-buffering effects. Instead, the s

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Rush, James D., and Benon H. J. Bielski. "Pulse-radiolysis study of mixed-valence MoIV,V complexes of EDTA, L-cysteine, and oxalate." Inorganic Chemistry 24, no. 23 (1985): 3895–98. http://dx.doi.org/10.1021/ic00217a040.

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LNU, Roshni, Shiny Benjamin, Shamina Pradhan, and Mohan T. Nainan. "Seal that Heals." World Journal of Dentistry 3, no. 3 (2012): 243–46. http://dx.doi.org/10.5005/jp-journals-10015-1164.

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ABSTRACT Introduction Dentinal hypersensitivity can be treated by dentinal tubule occlusion which prevents any stimuli from causing dentinal fluid movement. This in vitro study aims to compare the dentinal tubule occluding capability of four chemical compounds, a bonding agent, a compound of fluoride and hydroxyapatite, potassium oxalate gel and sodium fluoride varnish. Materials and methods Forty dentin samples were divided into four groups of 10 samples each. Group A (treated with Clearfil SE Bond), Group B (treated with Remin Pro), Group C (treated with Potassium Oxalate, Vi-sense,) and Gro

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Singh, Prabhsimranjot, Makardhwaj S. Shrivastava, Daniel Benasher, Audrik Perez, and Philip Rubin. "Curious Case of Profound Thrombocytopenia in a Pregnant Woman." Blood 128, no. 22 (2016): 4944. http://dx.doi.org/10.1182/blood.v128.22.4944.4944.

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Abstract Introduction: Pseudo-thrombocytopenia (PTCP) is a benign artifact which generates anxiety in the patients and physicians resulting in unnecessary investigations. We report a case with profound artefactual thrombocytopenia. Case: A 31-years-old female in 38th week of gestation was referred to hematology clinic for evaluation of a platelet count of 48x109/L. A month ago platelet count was 102x109/L. She denied any symptoms. Examination was normal with no ecchymosis or petechiae. Laboratory work showed a white cell count of 11.2x109/L, hemoglobin 10.3g/L, platelet count 8x109/L and no he

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Arinawati, Meidiana, Anjas Prasetya Hutama, and Tika Paramitha. "LiNi<sub>0.7</sub>Mn<sub>0.3</sub>O<sub>2</sub> as a Cheap Cobalt Free Nickel Rich Cathode Material for High-Performance Li-Ion Batteries." Defect and Diffusion Forum 417 (June 28, 2022): 141–51. http://dx.doi.org/10.4028/p-1224n8.

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A high-quality Lithium Nickel Manganese Oxide (LiNi0.7Mn0.3O2) material is successfully synthesized via co-precipitation. The precursors for lithium rechargeable batteries have been prepared using starting materials (NiCl2.6H2O and MnSO4.H2O) with precipitating agents of oxalic acid and sodium hydroxide, Ethylene diamine tetra acetic (EDTA) and sodium hydroxide, and sodium carbonate for oxalate co-precipitation, hydroxide co-precipitation, and carbonate co-precipitation, respectively. Then, the precursors were calcined at 500°C for 5 hours, mixed with Li2CO3, and sintered at 850°C for 15 hours

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Yousef A Al Dalahmeh, Yousef A. Al Dalahmeh, Fawwaz I. Khalili Fawwaz I Khalili, and Bassam A. Sweileh Bassam A Sweileh. "Synthesis, Characterization of Poly(1,4–cyclohexanedimethylene oxalate) and the Study of its Metal Uptake Behavior Towards Pb(II), Zn(II), and Cd(II) Ions." Journal of the chemical society of pakistan 41, no. 3 (2019): 421. http://dx.doi.org/10.52568/000747/jcsp/41.03.2019.

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Poly(1,4–cyclohexanedimethylene oxalate) was synthesized from oxalyl chloride and cis/trans–1,4–cyclohexandimethanol. The polymer was characterized by viscosity, FT–IR, NMR, elemental analysis, DSC, TGA, and SEM. The metal uptake behavior of the polymer towards Pb(II), Zn(II) and Cd(II) ions was studied by batch technique as a function of pH, temperature, concentration, contact time and by column technique. Their uptake increases slightly with pH reaching maximum at 6.00. The order of adsorption capacity was: Pb(II) andgt; Cd(II) andgt; Zn(II). The uptake of the polymer shows fittings to both

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Qiu, Yongting, Zhihong Wang, Ziqi Huang, Feng Liu, Daijun Tang, and Junxia Liu. "Effect of four kinds of complexing iron on the process of iron uptake by Anabaena flos-aquae." Microbiology 166, no. 4 (2020): 359–66. http://dx.doi.org/10.1099/mic.0.000891.

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Abstract Iron (Fe), which is a necessary micronutrient for algal growth, plays an important role in the physiological metabolism and enzymatic reactions of algae. This study aimed to investigate the absorption process of four kinds of complexing iron absorbed by Anabaena flos-aquae. Results showed that the absorptive capacity of A. flos-aquae to complex iron was inversely proportional to the stability of the complex bond of complex iron. Complex iron with weak binding ability can be quickly adsorbed by A. flos-aquae. The absorptive rate was as follows: ferric humate, ferric oxalate >ammoniu

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Rosenthal, M. A., and L. J. Olenick. "Evaluation of a single-color-reading method for determining fructosamine." Clinical Chemistry 34, no. 2 (1988): 360–63. http://dx.doi.org/10.1093/clinchem/34.2.360.

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Abstract A commercial kit for determining fructosamine was evaluated. The reference interval (determined from data on 183 nondiabetic subjects) was 1.67 to 2.85 (mean 2.17) mmol/L. Serum and plasma (EDTA- or heparin-anticoagulated) gave equivalent results; plasma treated with fluoride/oxalate gave slightly lower values. The between-run CV was less than 4%. Fructosamine values were similar by the present method and the kinetic method. The standard curve was linear in the range of 1.3 to 8.5 mmol/L. None of several constituents of blood that we tested appreciably interfered. Fructosamine values

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Mrvić, V., M. Jakovljević, D. Stevanović, and D. Čakmak. "The forms of aluminium in Stagnosols in Serbia." Plant, Soil and Environment 53, No. 11 (2008): 482–89. http://dx.doi.org/10.17221/2303-pse.

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The interactive relations of Al forms and the most important characteristics of Stagnosols were researched to diagnose which factors are the best to control the content of phytotoxic Al forms. The values of exchangeable Al (Al<sub>KCl</sub>) range from 0.0 to 560.7 mg/kg and increase with depth. The variation of exchangeable Al is high and it depends on the changes of all forms of soil acidity and the degree of base cation saturation. Their relation is best described by a non-linear function. The contents of total Al and Al extracted by ammonium oxalate in dark (Al amorphous, Al&lt

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Marconi, T., L. Featherstone, S. Schischka, and A. Simmance. "Obtaining an accurate platelet count in patients with pseudothrombocytopenia in EDTA and citrate with fluoride oxalate collection." Pathology 50 (February 2018): S106. http://dx.doi.org/10.1016/j.pathol.2017.12.299.

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Pan, Yuwei, Minghua Zhou, Qi Wang, Jingju Cai, Yusi Tian, and Ying Zhang. "EDTA, oxalate, and phosphate ions enhanced reactive oxygen species generation and sulfamethazine removal by zero-valent iron." Journal of Hazardous Materials 391 (June 2020): 122210. http://dx.doi.org/10.1016/j.jhazmat.2020.122210.

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Rampa, Ester, Herlando Sinaga, and Nofiliawati Putri. "Pemeriksaan SGOT, SGPT dan Jumlah Leukosit Pada Penderita DM Di RSUD Wamena Kabupaten Jayawijaya Papua." Jurnal Analis Medika Biosains (JAMBS) 8, no. 1 (2021): 17. http://dx.doi.org/10.32807/jambs.v8i1.204.

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Diabetes mellitus is a disease caused by high blood sugar levels due to impaired insulin secretion. Prolonged treatment and therapy carried out by Diabetes Mellitus patients allows damage to the liver, marked by the results of the examination of Serum Glutamic Oxalate Transminase (SGOT) and Serum Glutamic Pyruvit Transminase (SGPT) that are not normal. The purpose of this study was to determine the levels of SGOT, SGPT levels and the number of leukocytes in patients with diabetes mellitus at the Wamena Regional General Hospital, Jayawijaya Regency. This research was conducted from March 13 to

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Gambino, Raymond, Janet Piscitelli, Tomy A. Ackattupathil, et al. "Acidification of Blood Is Superior to Sodium Fluoride Alone as an Inhibitor of Glycolysis." Clinical Chemistry 55, no. 5 (2009): 1019–21. http://dx.doi.org/10.1373/clinchem.2008.121707.

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Abstract Background: Sodium fluoride is the preferred agent to inhibit glycolysis. Its action is not immediate, however, and complete inhibition is delayed for up to 4 hours. A more effective method is needed. Acidification of blood combined with the addition of NaF and EDTA appears to be such a method. We studied whether acidification was indeed more effective than NaF. Methods: We conducted 6 independent studies over a 10-month period at 3 Quest Diagnostics laboratory sites. In each study, we drew venous blood from 6–24 nonfasting employee volunteers into 3 or 4 different serum- or plasma-co

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Ahmed, Nayan, Chandrika Varadachari, and Kunal Ghosh. "Soil clayhumus complexes. II. Bridging cations and DTA studies." Soil Research 40, no. 4 (2002): 705. http://dx.doi.org/10.1071/sr01046.

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Clay-humus complexes, isolated from 5 soils (Entisol, Alfisol, Vertisol, two Mollisols), were extracted with 0.1 n citrate, EDTA, and oxalate at pH 7.0-10.0; amounts of Ca2+, Mg2+, Fe3+/2+, Al3+, as well as humic acid (HA) in the extract were determined. HA extracted increased with pH and varied with nature of ligand; largest amounts were extracted by EDTA at high pH. In the Entisol clay-humus extract, Ca2+ is dominant. In Alfisol sample, Ca2+ and Mg2+ have little role in clay-HA bonding; apart from monovalent cations, bonding is mainly through Fe3+/2+ and Al3+, which are well correlated to HA

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Newlon, Natalie F. "Comparison of the Ammonium Oxalate Extraction of Fertilizer for K2O, Method 983.02, with the Ammonium Citrate/EDTA Extraction, Method 993.31." Journal of AOAC INTERNATIONAL 86, no. 4 (2003): 640–42. http://dx.doi.org/10.1093/jaoac/86.4.640.

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Abstract The direct available method for phosphorus in fertilizers, Method 960.03, is an Official Method for extraction of both P2O5 and K2O. Because K2O is much more soluble and easier to extract than P2O5, the conditions of the extraction procedure are set for efficient extraction of P2O5, and the extraction of K2O is, in effect, a bonus. In 1993, a modified extraction procedure, using an extractant of ammonium citrate/ethylenediaminetetraacetic acid (EDTA) solution, was evaluated for P2O5 and then collaboratively studied. This now-modified extraction procedure for phosphorus is Official Met

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Vázquez-de la Fuente, Iñaki, Inés Barbier, Sara Puente-Muñoz, Nagore Prieto-Taboada, Gorka Arana, and Juan Manuel Madariaga. "Looking for Novel Natural Gels to Improve Cleaning Methods for Bronze Leachates on Marble." Gels 9, no. 11 (2023): 843. http://dx.doi.org/10.3390/gels9110843.

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Marble is one of the materials most susceptible to copper leaching, resulting in easily identifiable turquoise stains on the marble. This problem is particularly relevant when we are talking about marble structures of heritage value. For this reason, conservators look for cleaning materials that are specific to the structure to be treated without damaging the original surface. Materials such as agar have been studied for a long time. Agar creates a controlled water release system that adapts to the needs of conservators who seek the greatest possible cleanliness without damaging the material t

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Prabha, V., Meenakshi Gupta та K. G. Gupta. "Kinetic properties of 7α-hydroxysteroid dehydrogenase from Escherichia coli 080". Canadian Journal of Microbiology 35, № 12 (1989): 1076–80. http://dx.doi.org/10.1139/m89-180.

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Results on the kinetics of 7α-hydroxysteroid dehydrogenase 7α-HSDH showed that this enzyme could oxidize all bile acids having an –OH group at the C-7 position. Lineweaver-Burk plots showed Michaelis constant (Km) values of 0.83 and 0.12 mM for cholic acid and chenodeoxycholic acid, respectively. The effect of enzyme concentration on the reaction velocity showed a constant increase in the enzyme activity with increase in enzyme-protein concentration. 7α-HSDH was activated by Na+, K+, Ca2+, and Mn2+ ions and by reducing agents having a thiol group (dithiothreitol, 2-mercaptoethanol). Co2+, Hg2+

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