Gotowe bibliografie tematyczne / Ammonium acetate uv spectrum

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Gotowa bibliografia na temat „Ammonium acetate uv spectrum”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Ammonium acetate uv spectrum"

S., Anitha, Ganapathi M., and Ravi A. "SYNTHESIS OF SUBSTITUTED SULFONAMIDE BEARING IMIDAZOLE DERIVATIVES AND ITS CHARACTERIZATION." International Journal of Applied and Advanced Scientific Research 1, no. 2 (2017): 1–4. https://doi.org/10.5281/zenodo.256148.

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The sulfonamide bearing imidazole derivatives have been synthesized via two stages of chemical reactions. In a first stage, various substituted benzaldehyde condensed with benzil and ammonium acetate in presence L-Proline served as green catalyst. In a second stage, the series of substituted imidazole derivatives were reacted with benzene sulfonyl chloride in the presence of triethyl amine base. All synthesized compounds were characterized by various spectral techniques like UV-Visible, FTIR and <sup>1</sup>H NMR spectral analysis respectively. UV- Visible and FTIR spectra of each of the synth

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Borodina, Daria A., Yulia A. Gonchikova, Elena A. Illarionova, and Anastasia E. Mitina. "Development and validation of a method for isolating stavudine from biological fluids." Человек и его здоровье 24, no. 1 (2021): 62–68. http://dx.doi.org/10.21626/vestnik/2021-1/08.

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Objective - study of isolating Stavudine from biological fluids (urine, blood plasma). Materials and methods. Objects of research: substance and tablets of 30 mg Stavudine. Reagents: purified water, chloroform, ethyl acetate, dichloromethane, ether, heptane, toluene, acetone, 95% ethyl alcohol, 0.1 M hydrochloric acid solution, 10% ammonium hydroxide solution, 5%solutions of sodium sulfate, 20%sodium sulfate saturated, sodium chloride, sodium chloride saturated, 20%ammonium sulfate, ammonium sulfate saturated. Universal ionomer IT-1101. Stavudine was isolated by liquid-liquid extraction. To de

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Sahu, Dojalisa, Nihar R. Panda, and Debasrita Dash. "ZnO Nanosheets Exhibiting High UV Blocking Efficiency for Effective Application in Sunscreen." Asian Journal of Chemistry 32, no. 7 (2020): 1809–14. http://dx.doi.org/10.14233/ajchem.2020.22726.

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Zinc oxide (ZnO) nanopowder has been prepared by wet chemical method and tested for its effective UV blocking property coated on photosensitive paper/fabric samples. Zinc acetate dihydrate and ammonium hydroxide were adopted as synthesis precursors. Phase and crystallographic analysis of the samples have been carried out by X-ray diffraction (XRD) and show that ZnO sample belong to hexagonal wurtzite phase without any impurity. Surface morphology of ZnO samples studied by field emission scanning electron microscopy (FESEM) shows the formation of nanosheets with porous structure. These porous n

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Subadra, I. Nyoman, Luh Putu Mirah Kusuma Dewi Kusuma Dewi, and I. N. K. Widjaja Widjaja. "PEMANFAATAN GESERAN POLA SPEKTRUM UV SENYAWA GOLONGAN BARBITURAT DALAM UJI KONFIRMASI DENGAN METODE TLC-SPEKTROFOTODENSITOMETRI." Indonesian Journal of Legal and Forensic Sciences (IJLFS) 9, no. 1 (2019): 19. http://dx.doi.org/10.24843/ijlfs.2019.v09.i01.p03.

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A Research of the utilization of spectrum shift in confirmation test for barbiturate using TLC-Spectrophotodensitometry has been done. Analyte was analyzed using two mobile phases, that are TD (chloroform: acetone = 80 : 20) and TE (ethyl acetate: methanol: ammonia = 85 : 15 : 5) with Al-TLC Silica 60 GF254 plate as the stationary phase. Afterwards, plate was sprayed with HCl or KOH. The analyzed parameters were hRfc, normal UV-spectrum pattern and its shift. The correlation of spectrum or the shift of UV-spectrum for barbiturate compounds was determined with Wincats program. The analysi

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Karpushyna, S. A., S. V. Baiurka, I. Y. Halkevych, S. I. Ihlitska, O. O. Altukhov, and I. E. Bylov. "Development of conditions for isolation of antidepressant paroxetine from biological fluids." News of Pharmacy 107, no. 1 (2024): 119–24. http://dx.doi.org/10.24959/nphj.24.133.

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Aim. To develop optimized conditions for isolating the new antidepressant paroxetine from model blood and urine samples by the liquid extraction followed by the determination of the analyte using the UV spectrophotometric method. Materials and methods. The studies were performed with model samples of the donor blood and urine spiked with paroxetine. In the sample preparation of blood, the form elements were previously precipitated by 10 % solution of trichloroacetic acid. Endogenous impurities were removed by the extraction purification with chloroform from an acidic medium at pH 1, and paroxe

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Han, Hui Kai, Jin Cheng Huang, Hang Qi, and Du You Lu. "Preparation of ZnSe Quantum Dots by Hydrothermal Method Assisted by Ammonia." Materials Science Forum 956 (June 2019): 99–106. http://dx.doi.org/10.4028/www.scientific.net/msf.956.99.

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ZnSe quantum dots (QDs) with high intrinsic fluorescence quantum efficiency (QY) and low defect luminescence were prepared by hydrothermal method assisted with ammonia, in which the selenium powder and zinc acetate were used as Se and Zn source, and the mercaptopropionic acid (MPA) was used as ligand. Effect of ammonia amount, Zn/Se ratio, Zn/MPA ratio, and reaction time was investigated in detail in this study. The as-prepared ZnSe QDs were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-visible absorption spectrum (UV-Vis), fluorescence spectrum (PL). ZnS

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Rachman, Ihsan Budi, and Deana Wahyuningrum. "Synthesized 2,4,5-Triphenylimidazole as Precursor of Organic Light Emitting Diode (OLED) Material." Advanced Materials Research 896 (February 2014): 468–71. http://dx.doi.org/10.4028/www.scientific.net/amr.896.468.

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Current research based on fluorescent organic material has many advantages. One of advantages fluorescent organic material is as OLED (Organic Light Emitting Diode) based devices. OLED compound is rigid conjugated organic molecules. 2,4,5-triphenylimidazole (3) was synthesized by microwave assisted organic synthesis method. The first stage of synthesis is the synthesis of bibenzoyl (2) produced from the solventless oxidation reaction of benzoin (1) by atmospheric oxygen using MAOS (Microwave Assisted Organic Synthesis) method with chemical yields of 99.18% and melting point of bibenzoyl is 94-

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Baiurka, S., S. Karpushina, and S. Merzlikin. "The development of the conditions for vortioxetine isolation from biological fluids." News of Pharmacy, no. 1(101) (February 1, 2021): 18–22. http://dx.doi.org/10.24959/nphj.21.45.

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The chemical-toxicological significance of antidepressant drugs is steadily increasing. The development of effective methods of the sample preparation of the biological material is an important analytical aspect in toxicology of the newgeneration antidepressants. Aim. To develop the conditions for the sample preparation of biological fluids in order use them in the chemicaltoxicological analysis of the new antidepressant vortioxetine. Materials and methods. The studies were performed with model blood and urine samples spiked with vortioxetine. When examining the blood the formed blood elements

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Jawad, Fahmi K., and Nathera Abass Ali AL-Tememee. "Effect of pH on the Structural and Optical Properties of Cadmium oxide Thin Films Prepared Using the Successive Ionic Layer Adsorption and Reaction (SILAR) Method." Iraqi Journal of Physics (IJP) 20, no. 1 (2022): 63–71. http://dx.doi.org/10.30723/ijp.v20i1.975.

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Cadmium oxide (CdO) thin films were deposited using the sequencing ion layer adsorption and reaction (SILAR) method. In this study, the effect of the pH value of an aqueous solution of cadmium acetate at a concentration of 0.2 mol of the cadmium oxide film was determined. The solution source for the cadmium oxide film was cadmium ions and an aqueous ammonia solution. The CdO films were deposited on glass substrates at a temperature of 90 ℃. The cadmium oxide film thickness was determined by the weight difference method at pH values (7.2, 8.2). X-ray diffraction (XRD) and scanning electron mi

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Rukundo, Aimable, Peter Michael Dass, and I. I. Nkafamiya. "Evaluation of the effect of Beetroot Dye on Banana Pseudo Stem and Pineapple Leaves Fibres." NEWPORT INTERNATIONAL JOURNAL OF RESEARCH IN MEDICAL SCIENCES 5, no. 2 (2024): 18–28. http://dx.doi.org/10.59298/nijrms/2024/5.2.01828.

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Extraction and characterization of dye from beetroot scientifically known as Beta vulgaris was achieved. The dye was extracted using two extraction method namely Soxhlet with methanol as solvent and water where the beetroot powder was soaked in water and heat at 30-400C for 2 hours. It was observed that due to instability of beetroot dye at high temperature, aqueous dye extraction is preferable over Soxhlet extraction as the one extracted with Soxhlet changed its color from purple to black brown. Moreso, the extracted dye was characterized. Qualitative photochemical analysis, Anti-bacterial ac

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Części książek na temat "Ammonium acetate uv spectrum"

Yadav, Ramji Lal, Neeru Singh, S. N. Karaiya, Rahul Dev, and Anil Kumar. "Characterization of 2-Deoxy-D-glucose." In 2-Deoxy-D-Glucose: Chemistry and Biology. BENTHAM SCIENCE PUBLISHERS, 2024. http://dx.doi.org/10.2174/9789815305159124010006.

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2-Deoxy-D-glucose is an important pharmaceutical intermediate, and its analytical characterization is critical for establishing its purity and quality. This chapter summarizes spectroscopic techniques, including UV, IR, NMR, and mass spectrometry, along with HPLC and GC studies used for the complete structural elucidation and purity analysis of 2-Deoxy-D-glucose. The UV spectrum of 2-DeoxyD-Glucose showed no distinct peaks. The IR spectrum displayed characteristic bands for the O-H and C-H functional groups. 1H, 13C, APT, DEPT NMR, HSQC, and HMBC experiments confirmed the nominally proposed st

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Streszczenia konferencji na temat "Ammonium acetate uv spectrum"

Chen, Kok Hao, and Jong Hyun Choi. "DNA Oligonucleotide-Templated Nanocrystals: Synthesis and Novel Label-Free Protein Detection." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11958.

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Semiconductor and magnetic nanoparticles hold unique optical and magnetic properties, and great promise for bio-imaging and therapeutic applications. As part of their stable synthesis, the nanocrystal surfaces are usually capped by long chain organic moieties such as trioctylphosphine oxide. This capping serves two purposes: it saturates dangling bonds at the exposed crystalline lattice, and it prevents irreversible aggregation by stabilizing the colloid through entropic repulsion. These nanocrystals can be rendered water-soluble by either ligand exchange or overcoating, which hampers their wi

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Raporty organizacyjne na temat "Ammonium acetate uv spectrum"

อุดมกาญจนนันท์, พรพรรณ, та สุชาดา จูอนุวัฒนกุล. การตรวจวิเคราะห์สารมาลาไคต์กรีนและเมตะบอไลต์ลิวโคมาลาไคต์กรีนตกค้างในสัตว์น้ำเพาะเลี้ยงด้วยเทคนิค LC-MS/MS และเทคนิค HPLC-UV-VISIBLE : รายงานการวิจัย. จุฬาลงกรณ์มหาวิทยาลัย, 2007. https://doi.org/10.58837/chula.res.2007.57.

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งานวิจัยนี้ได้พัฒนาวิธีวิเคราะห์MG และ LMG พร้อมกันในตัวอย่างสัตว์น้ำเพาะเลี้ยง ให้มีความถูกต้องแม่นยำสูง ด้วยการเตรียมตัวอย่างที่มีขึ้นตอนงายและรวดเร็วขึ้น ใช้เตาอบไมโครเวฟในการสกัดและคลีนอัพ และวิเคราะห์ MG และ LMG ด้วยเทคนิค LC-MS/MS มีสารคริสตัลไวโอเล็ต (Crystal violet, CV) เป็น internal standard ที่ ionpairs ดังนี้ : MG 329.3/208.2, 329.3/313.1, LMG331.3/165.4, 331.3/239.3 และ CV (internal standard) 372.2/356.3 วิธีวิเคราะห์อีกวิธีหนึ่งคือการตรวจวิเคราะห์มาลาไคต์กรีน ลิวโคมาลาไคต์กรีน คริสตัลไวโอเล็ต ลิวโคคริสตัลไวโอเล็ต ตกค้างในสัตว์น้ำเพาะเลี้ยง เช่น ปลา กุ้ง พร้อมกันด้วยเทคนิค HPLC-DAD

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อุดมกาญจนนันท์, พรพรรณ, та สุชาดา จูอนุวัฒนกุล. การตรวจวิเคราะห์สารมาลาไคต์กรีนและเมตะบอไลต์ลิวโคมาลาไคต์กรีนตกค้าง ในสัตว์น้ำเพาะเลี้ยง ด้วยเทคนิค LC-MS/MS และเทคนิค HPLC-UV-VISIBLE : รายงานการวิจัยฉบับสมบูรณ์. คณะวิทยาศาสตร์ จุฬาลงกรณ์มหาวิทยาลัย, 2008. https://doi.org/10.58837/chula.res.2008.37.

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งานวิจัยนี้ได้พัฒนาวิธีวิเคราะห์ MG และ LMG พร้อมกันในตัวอย่างสัตว์น้ำเพาะเลี้ยง ให้มีความถูกต้องแม่นยำสูง ด้วยการเตรียมตัวอย่างที่มีขั้นตอนง่ายและรวดเร็วขึ้น ใช้เตาอบไมโครเวฟ ในการสกัดและคลีนอัพ และวิเคราะห์ MG และ LMG ด้วยเทคนิค LC-MS/MS มีสารคริสตัลไวโอเล็ต (Crystal violet, CV) เป็น internal standard ที่ ion pairs ดังนี้ : MG 329.3/208.2, 329.3/313.1, LMG 331 .3/165.4, 331.3/239.3 และ CV (internal standard) 372.2/356.3 วิเคราะห์ปริมาณด้วยวิธี standard addition method ร่วมกับ internal standard calibration method วิธีวิเคราะห์อีกวิธีหนึ่งคือการวิเคราะห์มาลาไคต์กรีน ลิวโคมาลาไคด์กรีน คริสตัลไว

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