Relevant bibliographies by topics / Color reagents

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Color reagents'

Author: Grafiati
Published: 7 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "Color reagents"

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Amalendu, Sinhababu, and Kundu Somenath. "Modified ninhydrin spray reagent for the identification of amino acids on TLC plates." Journal of Indian Chemical Society Vol. 91, Apr 2014 (2014): 651–55. https://doi.org/10.5281/zenodo.5717948.

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Natural Product Laboratory, Department of Chemistry, The University of Burdwan, Burdwan-713 104, West Bengal, India <em>E-mail</em> : sinhababu04@yahoo.co.in, sinhababu04@gmail.com <em>Manuscript received online 07 August 2013, accepted 09 September 2013</em> Detection of amino acids has utmost importance for the evaluation of protein structure and also for the determination of the C-terminal units of degraded proteins. TLC is an important tool for the identification of amino acids by various specific and non-specific spray reagents. Among the reagents used, ninhydrin is the most popular becau
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Amalendu, Sinhababu, and Basu Sarmistha. "Identification of amino acids on thin layer chromatograms by modified ninhydrin reagent." Journal of Indian Chemical Society Vol. 91, Mar 2014 (2014): 563–67. https://doi.org/10.5281/zenodo.5717758.

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Natural Product Laboratory, Department of Chemistry, The University of Burdwan, Burdwan-713 104, West Bengal, India <em>E-mail</em> : sinhababu04@yahoo.co.in <em>Fax</em> : 91-342-2530452/2634200 <em>Manuscript received online 17 April 2013, revised 19 July 2013, accepted 19 July 2013</em> Spray reagents are very useful for detecting amino acids on thin layer chromatoplates. It is well known that ninhydrin is most widely used as a spray reagent for identification of amino acids due to its high sensitivity, although it produces same purple/violet color with all amino acids, except in two cases
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Sarmistha, Basu, and Sinhababu Amalendu. "Detection of amino acids on TLC plates with modified ninhydrin reagent." Journal Of Indian Chemical Society Vol. 91, Jan 2014 (2014): 159–62. https://doi.org/10.5281/zenodo.5746922.

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Natural Product Laboratory, Department of Chemistry, The University of Burdwan, Burdwan-713 104, West Bengal, India <em>E-mail </em>: sinhababu04@yahoo.co.in Fax : 91-342-2530452/2634200 <em>Manuscript received online 28 January 2013, revised 04 February 2013, accepted 09 February 2013</em> Thin layer chromatography is an important tool for detecting amino acids by several spray reagents. Ninhydrin is the most well known spray reagent for identification of amino acids due to its high sensitivity. But, it produces same purple/violet color with all amino acids, except proline and hydroxy proline
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Ningtyas, Karisma Wulan, Zulfikar Zulfikar, and Bambang Piluharto. "Identification of Ibuprofen, Ketoprofen and Diclofenac by Using Test Strip Based on Imobilized Spesific Reagent on Nata De Coco Membrane." Jurnal ILMU DASAR 16, no. 2 (2016): 49. http://dx.doi.org/10.19184/jid.v16i2.1520.

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Identification of ibuprofen, ketoprofen and diclofenac can be done by using simple method, it is called test strips. Test strip is made by immobilized specific reagents with entrapment technical on membrane matrix, which the used membrane nata de coco. Immobilization reagents with entrapment techniques aimed to trap reagent molecules in the space between the supporting material.The success of this imobilization can be seen from membran changing color after additional reagent and there is no leeching after additional sample on membrane. The used reagent for this identification is methyl red for
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Sentat, Triswanto, Henny Nurhasnawati, and Yunita Rachma Dwinand. "DEVELOPMENT OF PAPER-BASED COLOR TEST-STRIP FOR PARACETAMOL DETECTION IN JAMU." Jurnal Ilmu Kesehatan 7, no. 2 (2020): 137–42. http://dx.doi.org/10.30650/jik.v7i2.1231.

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Chemical medicine which are synthetic chemicals or isolation products must not be added to herbal medicine, that was standared by Indonesian Head of the Drug and Food Control Agency in statement regarding Criteria and Procedure for Registration of Traditional Medicines, Standardized Herbal Medicines, and Phytofarmaka. This study aims to develope prototype of paper-based color test-strip to identify paracetamol trace in several types of Indonesian herbal medicine, better known as Jamu. Research conducted with experimental research wich make paper test-strip prototype by immobilizing reagents in
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Walash, Mohamed I., Abed Abou Ouf, and Fatma B. Salem. "Colorimetric Determination of Sympathomimetic Amines Methyldopa and Noradrenaline." Journal of AOAC INTERNATIONAL 68, no. 1 (1985): 91–95. http://dx.doi.org/10.1093/jaoac/68.1.91.

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Abstract The chromogenic reagent p-dimethylaminocinnamaldehyde (PDAC) is introduced for the determination of the sympathomimetic amines methyldopa and noradrenaline. The method is based on measurement of the orange color developed when the alkaline solution of methyldopa and noradrenaline is allowed to react with PDAC at pH 5.0. The color developed obeys Beer's law in the concentration range 0.1-1.5 mL of 2 x 103M solution of noradrenaline and methyldopa. The results are compared with those obtained with another chromogenic reagent, pdimethylaminobenzaldehyde (PDAB). Determinations on dosage f
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RAKHMATILLAEVA, INDIRA ANVAROVNA1, and SHOKHISTA POLVANNAZIROVNA1 OLTIEVA. "REAGENTS IN THE ANALYSIS OF ALKALOIDS: A COMPREHENSIVE REVIEW." Multidisciplinary Journal of Science and Technology 5, no. 5 (2025): 91–99. https://doi.org/10.5281/zenodo.15346020.

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Alkaloids represent a diverse class of naturally occurring nitrogen-containing compounds with significant pharmaceutical and toxicological properties. This review examines the various reagents employed in the qualitative and quantitative analysis of alkaloids, focusing on their chemical principles, applications, and limitations. The classical precipitation reagents, color-forming reagents, and modern analytical techniques are discussed in detail. Special attention is given to the selectivity, sensitivity, and specificity of these reagents for different alkaloid classes. This comprehensive over
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Abdullayeva, Rayhon Aminovna Ataullayev Zokir Makhsudovich. "DETERMINATION OF THE AMOUNT OF IRON IONS USING ORGANIC REAGENTS." THEORETICAL ASPECTS IN THE FORMATION OF PEDAGOGICAL SCIENCES 2, no. 2 (2023): 188–89. https://doi.org/10.5281/zenodo.7565394.

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Currently, in colorimetric analysis, the concentration of Mn ion is determined using its characteristic color. However, few metal ions produce such strong colors, especially at low concentrations. Many colored complexes can be formed from metal ions and organic or inorganic complexing agents. These complexes are the result of interaction between Lewis acid (metal ion) and Lewis base (complex former) [1]. An ideal color-forming reagent requires that it be stable and selective (even specific) and that it reacts rapidly to form soluble, highly colored complexes.
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Grishkovets, V., and L. Yakovishin. "DETECTION REAGENTS FOR TRITERPENE GLYCOSIDES OF ARALIACEAE PLANTS." Scientific Notes of V.I. Vernadsky Crimean Federal University. Biology. Chemistry 11, no. 2 (2025): 344–51. https://doi.org/10.29039/2413-1725-2025-11-2-344-351.

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A comparative evaluation of the effectiveness of various detecting reagents was carried out in terms of detection limit and differences in the coloration of chromatographic zones for different triterpenoid series. It was shown that the most effective detecting reagents are those based on phosphotungstic acid with the addition of aromatic aldehydes (para-hydroxybenzaldehyde and vanillin) and sulfuric acid. It was demonstrated that the spots of glycosides from the β-amyrin series – namely oleanolic acid, echinocystic acid, and erythrodiol – are stained pink, whereas the spots of glycosides of he
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Kozhinova, E. S., A. V. Tumskaia, and I. V. Kosyreva. "The use of aromatic aldehydes for the test determination of cefotaxime." Industrial laboratory. Diagnostics of materials 89, no. 8 (2023): 5–11. http://dx.doi.org/10.26896/1028-6861-2023-89-8-5-11.

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Indicator papers based on immobilized reagents with their subsequent digital image processing are widely used for the quick and cheap screening study of drugs when assessing the content of the main substance in drugs for the presence of counterfeits. Indicator papers based on reagents immobilized on a cellulose matrix 4-dimethylaminocinnamic aldehyde (DMACA), 4-dimethylaminobenzaldehyde (DMAB), and 3-methoxy-4-hydroxybenzaldehyde (vanillin) were proposed for the determination of β-lactam antibiotic cefotaxime. To specify optimal conditions for the immobilization of reagents on a solid matrix,
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Dissertations / Theses on the topic "Color reagents"

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Powell, William W. "The removal of color and DOC from segregated dye waste streams using ozone and Fenton's reagent followed by biotreatment." Thesis, Virginia Polytechnic Institute and State University, 1992. http://hdl.handle.net/10919/50105.

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The decolorization of reactive dye-containing waste streams using oxidizing chemicals and the determination of the effect of the oxidizing agents on the subsequent biotreatment of the streams was investigated. Three oxidizing schemes were chosen for study: molecular ozone, base-promoted ozonation, and Fenton’s reagent (Fe²⁺ and H₂O₂). The ADMI color value of the solutions was used as the primary parameter for color comparison and dissolved organic carbon (DOC) removal was the measure of the effect of biodegradation. Three different waste streams from a textile dyeing facility were chosen: a
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SHIH, JHAO-EN, and 施肇恩. "Evaluation of Amphetamine Examination by Marquis Reagent Color Method." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/5suk7c.

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碩士<br>長榮大學<br>職業安全與衛生學系碩士班<br>105<br>In recent years, the use of drugs in Taiwan has become more and more serious, but also spreads to students, entertainers, military and police personnel and other social strata. Drugs often cause personal, family, law and order, infection and other issues. A reliable and rapid method is needed to carry out the drug screening test. Urine testing of currently abused drugs is usually divided into two phases. The first stage is a screening test. It is a quick test method, easy to operate and can be tested without any pre-treatment. Immunological analysis (immune
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Books on the topic "Color reagents"

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National Institute of Standards and Technology (U.S.). Office of Law Enforcement Standards. and National Institute of Justice (U.S.). Office of Science and Technology., eds. Color test reagents/kits for preliminary identification of drugs of abuse. U.S. Dept. of Justice, Office of Justice Programs, National Institute of Justice, 2000.

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National Institute of Standards and Technology (U.S.). Office of Law Enforcement Standards and National Institute of Justice (U.S.). Office of Science and Technology, eds. Color test reagents/kits for preliminary identification of drugs of abuse. U.S. Dept. of Justice, Office of Justice Programs, National Institute of Justice, 2000.

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Hayes, Brian S., and Luther M. Gammon. Optical Microscopy of Fiber-Reinforced Composites. ASM International, 2010. http://dx.doi.org/10.31399/asm.tb.omfrc.9781627083492.

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Optical Microscopy of Fiber-Reinforced Composites discusses the tools and techniques used to examine the microstructure of engineered composites and provides insights that can help improve the quality and performance of parts made from them. It begins with a review of fiber-reinforced polymer-matrix composites and their unique microstructure and morphology. It then explains how to prepare and mount test samples, how to assess lighting, illumination, and contrast needs, and how to use reagents to bring out different phases and areas of interest. It also presents the results of several studies t
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Book chapters on the topic "Color reagents"

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Leid, J., V. Leid, and P. Massabie. "The Influence of Diabetic Dyschromatopsia on the Interpretation of Self-Monitoring Coloured Reagent Strips." In Colour Vision Deficiencies VIII. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-4275-2_64.

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"Color Test Reagents." In Forensic Investigation of Clandestine Laboratories. CRC Press, 2003. http://dx.doi.org/10.1201/9780203484548.axj.

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"Color Insert." In Small-Scale Synthesis of Laboratory Reagents with Reaction Modeling. CRC Press, 2011. http://dx.doi.org/10.1201/b10611-24.

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"Stains, Media, Reagents, and Histopathology." In Color Atlas of Medical Bacteriology. John Wiley & Sons, Inc., 2020. http://dx.doi.org/10.1128/9781683671077.ch41.

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Chang, Jui-Yoa. "MICRO-ANALYSIS OF POLYPEPTIDE STRUCTURE USING COLOR REAGENTS." In Review Articles, including those from an International Conference held in Bielefeld, F. R. of Germany, June 1–2, 1984. De Gruyter, 1985. http://dx.doi.org/10.1515/9783112393048-013.

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Kumari Shrestha, Yagya, and Shree Krishna Shrestha. "Fundamentals of Colorimetry." In Advances in Colorimetry [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.112344.

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There are several kinds of analytical techniques following the principle of photometry in which colorimetry comes under absorption photometry. The colorimetry is commonly used analytical technique involved in quantitative estimation of color i.e. it is utilized to find out concentration of the colored substance in the sample solution e.g. water, biological samples at visible spectrum of light (380–780 nm). The colorimeter is an instrument in which this technique is used. It is also called absorptiometer. A substance must be colorful or should have property of forming chromogens through the add
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Roederer, Mario, and Stephen C. De Rosa. "Multiparameter Analysis: Application to Vaccine Analysis." In Flow Cytometry for Biotechnology. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780195183146.003.0015.

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Fluorescence-based flow cytometry was introduced in the late 1960s and is now used extensively both in basic research and in the clinic. Flow cytometry allows not only for the rapid multiparametric analysis of cells on a cell-by-cell basis but also for the viable separation, or sorting, of highly purified populations of cells. In this chapter, we will discuss only the analysis aspects. The earliest flow cytometry experiments had three parameters: one fluorescence measurement and two scattered light signals. An early “one-color” experiment successfully separated antibody-secreting B cells from
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Joshi, Sai, Sinchan Hait, and Pranali Bhosale. "Qualitative Tests for Lipid Detection." In Practical Biochemistry. BENTHAM SCIENCE PUBLISHERS, 2024. http://dx.doi.org/10.2174/9789815165852124010018.

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Qualitative tests are the primary assays for detecting the presence of any lipids in a given sample. Qualitative detection of lipids is based on the chemical interactions between components of lipids and certain chemical reagents added to them. These chemical reagents allow for the properties of lipids like hydrophobicity, translucency, or colourimetric analysis due to colour changes. These tests have been explained in detail in this chapter.
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Mariglia, Mario, and Edineldo Lans-Ceballos. "Removal of Heavy Metals and Purification of Surface Waters." In Environmental Sciences. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1005095.

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In many parts of the world, the removal of heavy metals and turbidity in surface waters for potabilization is a focus of study, as it has become a public health problem. Many researchers develop methodologies for the removal of heavy metals; however, these are generally difficult to implement in rural areas due to the danger associated with the use of chemical reagents by individuals with little or no education. That is why this chapter aims to conduct a comprehensive literature review, including an original research project developed by our working group, to identify affordable methods for th
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White, Peter D., and Weng C. Chan. "Basic principles." In Fmoc Solid Phase Peptide Synthesis. Oxford University Press, 1999. http://dx.doi.org/10.1093/oso/9780199637256.003.0006.

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Construction of a peptide chain on an insoluble solid support has obvious benefits: separation of the intermediate peptides from soluble reagents and solvents can be effected simply by filtration and washing with consequent savings in time and labour over the corresponding operations in solution synthesis; many of the operations are amenable to automation; excess reagents can be employed to help to drive reactions to completion; and physical losses can be minimized as the peptide remains attached to the support throughout the synthesis. This approach does, however, have its attendant limitatio
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Conference papers on the topic "Color reagents"

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Mahmoud, Mohamed, Ahmed Alsalman, and Hassan Almalki. "Novel Sample Pretreatment to Determine Iron Counts in Sour Glycol Streams by Spectrophotometer." In International Petroleum Technology Conference. IPTC, 2021. http://dx.doi.org/10.2523/iptc-21372-ms.

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Abstract Determination of Iron Content in Triethylene glycol (TEG) samples is a very important indicator in measuring the system corrosion rate in oil and gas facilities. This study employed the application of an alternative/easy and reliable test method, which involved the use of a spectrophotometer for quantification of Iron concentration in tri ethylene glycol samples, that are used in sour gas dehydration units, rather than the sophisticated technique of Inductively Coupled Plasma Optical Emission Spectroscopy, ICP-OES. The main challenge was how to eliminate/minimize the significant inter
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Castaño Sánchez, Juan Camilo, Daniel Ovidio Salazar López, Miguel Ángel Gómez García, and Izabela Dobrosz Gómez. "Comparación de la eficiencia de diferentes métodos electro-fenton, como potenciales alternativas de tratamiento para un agua residual industrial textil contaminada con colorante negro ácido 194." In Ingeniería para tranformar territorios. Asociación Colombiana de Facultades de Ingeniería - ACOFI, 2023. http://dx.doi.org/10.26507/paper.3329.

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Varias empresas textiles del eje cafetero colombiano utilizan el colorante negro ácido 194 (NA194) en sus procesos de teñido. Del monitoreo de las aguas residuales de esas empresas, realizados por el grupo de investigación PRISMA (GI-PRISMA), se ha establecido que el uso del NA194 genera efluentes (ARnD) altamente contaminantes que superan los límites permisibles establecidos por la normativa ambiental nacional (color aparente = 45850 U Pt-Co, Demanda Química de Oxígeno, DQO = 3800 mg O2/L y Demanda Biológica de Oxígeno, DBO5 = 790 mg O2/L). Los procesos electroquímicos avanzados de oxidación
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Chai, Run, Junchao Wan, and Huaping Zhu. "A Medical Reagent Grade Judgment System Based on Color Intelligent Recognition." In 2021 IEEE International Conference on Progress in Informatics and Computing (PIC). IEEE, 2021. http://dx.doi.org/10.1109/pic53636.2021.9687004.

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Ho, Pei Xuan, Kai Seng Koh, Billie Yan Zhang Hiew, Chang Nong Lim, and Yong Ren. "Rapid Acid Value Test-Kit Development for Oleochemical Product Quality Control Using Microfluidic Technology." In ASME 2024 7th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/mnhmt2024-130124.

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Abstract This paper describes the design and implementation of a cost effective micro total analytical devices (μTADs) that aims to determine the acid value of oleochemcial product. This device aims to provide a simple and effective acid-base titration technique in an aqueous solution in microscale. The device utilised colorimetry approach to determine the acid value of the oleochemical product by measuring the distance travelled by the colour change from pink to colourless during titration to quantify the molarity of the acid concentration. The μTADs consists of a 3D-printed polymeric design
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Liu, Pengfei, Weifeng Zhang, Jingfeng Qiu, Qiaoyi Hu, and Kejing He. "Reagent Color Recognition Model for Android Platform Based on OPENCV and Machine Learning." In 2019 International Conference on Machine Learning, Big Data and Business Intelligence (MLBDBI). IEEE, 2019. http://dx.doi.org/10.1109/mlbdbi48998.2019.00060.

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May, Preston, Jay P. Deville, and Jeffrey Miller. "Shale Inhibitor Tracking for High-Performance Water-Based Drilling Fluids." In IADC/SPE International Drilling Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/208721-ms.

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Abstract Drilling wells with water-based fluid systems can be problematic due to the water reactivity of clay-containing shale minerals. This fundamental issue is the most often cited performance gap between non-aqueous fluid (NAF) and water-based fluids (WBF). The consequences of uncontrolled shale hydration include issues such as bit-balling/accretion, reduced ROP, wellbore collapse, and overall increased wellbore construction costs. This problem is typically addressed by the addition of shale inhibitors which can span multiple types of chemistries. The maintenance of these additives is nuan
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U, Ayyappan, Indu M.S, Adithya G. Murickan, Balagopal J, Arun S. Kumar, and Priya K L. "Continuous flow electrocoagulation system for the treatment of coir industry wastewater." In International Web Conference in Civil Engineering for a Sustainable Planet. AIJR Publisher, 2021. http://dx.doi.org/10.21467/proceedings.112.29.

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Coir industry, a prominent industry in Kerala, uses huge amount of water and chemical reagents for its functioning. The effluent from these industries has high BOD, COD, toxic chemicals, oils and grease etc. Of the various pollutants, synthetic dyes are the most concerning. Electrocoagulation has advantages over other systems, as it doesn’t produce any secondary pollutants. In this study, a continuous flow electrocoagulation reactor is designed and operational parameters like flow rate, voltage, pH, electrolyte concentration, dye concentration and electrode orientation are optimized. The influ
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Tong, Peijin, Junmei Iiang, Lingling Wei, and Wenming Cao. "A nondestructive method for oil distribution evaluation in healthy fried food developing by Raman imaging." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/thnq3203.

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Deep-fat frying is one of the most popular food processing methods worldwide, which makes fried products tend to have bright color, delicious taste and crisp texture. However, traditional fried foods contain large amount of oil, calories and acrylamide which are burden to health, making consumers increasingly tend to use healthy food with low fat content, reduction of oil uptake during different frying processes is necessary. In this study, fried spring roll wrappers at different temperature were taken as examples to be investigated by Confocal microscopic Raman imaging method. The Raman spect
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Burlacu, Svetlana. "Determination of tetracycline antibiotics in meat by the immunoenzymatic method." In Simpozion Ştiinţific Internaţional "50 ani de învăţământ superior medical veterinar din Republica Moldova". Technical University of Moldova, 2025. https://doi.org/10.52326/ismv2024.20.

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In the present study, pork samples were examined for the detection of antibiotics from the tetracycline group by the immunoenzymatic method, using kits from the manufacturer R-biopharm and Biopanda Reagen. The antibiotics tetracycline, oxytetracycline and chlortetracycline were determined. The principle of the method involves the quantitative identification of the antibiotic present in the examined sample, where the fixed amount of antigen lined in the wells of the microtiter strips competes for anti-tetracycline, anti-oxytetracycline and anti-chlortetracycline antibodies which in turn are det
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Rodrigues, Lara de Siqueira, Caroline Mahlmann, Leandro Teixeira Abreu, Isabella Soares da Costa dos Santos, and André Luiz Clemente Beralto. "Estupro marital: um relato de violência sexual dentro de relacionamento e interrupção de gestação prevista em lei." In 44° Congresso da SGORJ - XXIII Trocando Ideias. Zeppelini Editorial e Comunicação, 2020. http://dx.doi.org/10.5327/jbg-0368-1416-2020130261.

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Introdução: Estupro marital é um tipo de violência sexual que difere do estupro apenas pelo grau de intimidade de quem o comete. O aborto é considerado crime no Brasil, salvo casos previstos em lei. Uma dessas situações seria a gravidez decorrente de estupro/violência sexual. Objetivos: Relatar experiência de vítima de violência sexual por parte de companheiro, que optou por interrupção da gestação e trazer luz à possibilidade de realização de aborto previsto em lei nesses casos. Materiais e Métodos: Relato de caso clínico baseado em coleta de dados de prontuário de paciente vítima de abuso se
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