Showing 61 - 80 results of 129 for search '"chloroform"', query time: 0.04s Refine Results
  1. 61

    Development of Low Energy Gap and Fully Regioregular Polythienylenevinylene Derivative by Tanya M. S. David, Cheng Zhang, Sam-Shajing Sun

    Published 2014-01-01
    “…The polymer was synthesized via Horner-Emmons condensation and is fairly soluble in common organic solvents such as tetrahydrofuran and chloroform with gentle heating. DSC showed two endothermic peaks at 67°C and 227°C that can be attributed to transitions between crystalline and liquid states. …”
    Get full text
    Article
  2. 62

    DNA barcoding and antioxidant activity of Fritillaria karelinii (Fisch. ex D. Don) Baker from nature habitats of southeast Kazakhstan by A. Tursynbay, S. Jo, Z.Z. Karzhaubekova, N.G. Gemejiyeva, J.-H. Paik, A.G. Sankaybaeva, G.S. Mukan

    Published 2024-12-01
    “…The outcomes of the antioxidant activity of F. karelinii fractions were prepared by extraction with 70% ethanol and separation into several fractions using the partition procedure with chloroform, ethyl acetate, n-butanol, and water. Among these, the ethyl acetate fraction most significantly affected the activity in the FC, DPPH, and FRAP assays.…”
    Get full text
    Article
  3. 63

    Application of HPLC with ELSD Detection for the Assessment of Azelaic Acid Impurities in Liposomal Formulation by Stanislaw Han, Katarzyna Karlowicz-Bodalska, Dorota Szura, Lukasz Ozimek, Witold Musial

    Published 2013-01-01
    “…A chromatographic column from Merck (Purospher Star RP C18, 250–4 mm (5 μm) was used in the assay, and the mobile phase gradient consisted of three phases: A—methanol : water (5 : 95) + 1.5% (v/v) acetic acid; B—water : methanol (5 : 95) + 1.5% (v/v) acetic acid; and C—chloroform. Detection of the impurities and the active substance was performed by an evaporative light-scattering detector. …”
    Get full text
    Article
  4. 64

    Development and Validation of an Extractive Spectrophotometric Method for Miconazole Nitrate Assay in Pharmaceutical Formulations by Tadele Eticha, Getu Kahsay, Teklebrhan Hailu, Tesfamichael Gebretsadikan, Fitsum Asefa, Hailekiros Gebretsadik, Boovizhikannan Thangabalan

    Published 2018-01-01
    “…The method is based on the formation of a chloroform-soluble ion-pair complex between the drug and bromocresol green (BCG) dye in an acidic medium. …”
    Get full text
    Article
  5. 65

    History of Anestesiology ad Resuscitation in Cienfuegos by Omar Rojas Santana, Evangelina Davila Cabo de Villa, Rosa Mirta Molina Lois, Indira Rojas Molina

    Published 2021-10-01
    “…The main facts that were developing the specialty of Anesthesiology and Resuscitation in the province were found since the beginning of the 20th century with the application of chloroform and ether by Alfredo Méndez surgeon and how it continues its development with doctors dedicated to anesthesia in the beginning of the second half of the 1950s; the development in the Civil Hospital and private clinics, until the triumph of the Revolution and until nowadays in the XXI century. …”
    Get full text
    Article
  6. 66

    Third Derivative Spectrophotometric Method for Simultaneous Determination of Copper and Nickel Using 6-(2-Naphthyl)-2, 3-dihydro-1,2,4- triazine-3-thione by Maliheh Barazandeh Tehrani, Effat Souri

    Published 2011-01-01
    “…The complexes of metal ions with NDTT were formed immediately in basic media and extracted with chloroform. The zero-crossing measurement technique was found suitable for the direct measurement of the third-derivative value of Ni-NDTT and Cu-NDTT at 501 and 472 nm respectively. …”
    Get full text
    Article
  7. 67

    Molluscicidal Activity of Some Solanum Species Extracts against the Snail Biomphalaria alexandrina by Gehad T. El-Sherbini, Rawia A. Zayed, Eman T. El-Sherbini

    Published 2009-01-01
    “…A phytochemical analysis of chloroform: ethanol extract was performed to search for active toxic ingredient. …”
    Get full text
    Article
  8. 68

    Analysis of diclofenac in water samples using in situ derivatization-vortex-assisted liquid-liquid microextraction with gas chromatography-mass spectrometry by Aydin Senar, Aydin Mehmet Emin, Beduk Fatma, Tekinay Arzu, Kilic Havva

    Published 2018-09-01
    “…The optimum extraction conditions were as follows: 200 μL of chloroform, 25 μL of N-methyl-N-trimethylsilyl-trifluoroacetamide (MSTFA) derivatization reagent, vortex extraction and derivatization time 5 min at 3000 rpm. …”
    Get full text
    Article
  9. 69

    Quinoline-Based Materials: Spectroscopic Investigations as well as DFT and TD-DFT Calculations by Mahmoud A. S. Sakr, Samy A. El-Daly, El-Zeiny M. Ebeid, Sadeq M. Al-Hazmy, Mohammed Hassan

    Published 2022-01-01
    “…The electronic absorption spectra of DDP and DDPA molecular structures were monitored through an experiment in hosts such as carbon tetrachloride (CCl4), chloroform (CHCl3), methylene dichloride (CH2Cl2), acetone, and dimethyl sulfoxide (DMSO). …”
    Get full text
    Article
  10. 70

    Antibacterial and Antioxidant Activities of Triterpenoids Isolated from Endemic Euphorbia arbuscula Stem Latex by Zainab Al-Ansi, Mohammed Masaoud, Khaled Hussein, Bushra Moharram, Wafa M. Al-Madhagi

    Published 2024-01-01
    “…The study also investigated the antioxidant activity using the DPPH assay, where the ethyl acetate extract exhibited the highest activity with an IC50 value of ±13.55 µg/mL, followed by the chloroform extract with an IC50 of ±21.87 µg/mL. These findings emphasize the potential of Euphorbia arbuscula in the development of new medicines, particularly due to its notable antioxidant activity. …”
    Get full text
    Article
  11. 71

    Enhancing transdermal drug delivery: formulation and evaluation of simvastatin-loaded invasomes in carbopol gel for improved permeability and prolonged release by Deepak Kumar Dash, Dibya Sundar Panda, Satyanarayan Pattnaik, Riya Vaiswade, Gayatri Gupta

    Published 2025-01-01
    “…This formulation involved the use of soy phosphatidylcholine, terpene (Limonene), chloroform, and ethanol. Simvastatin-loadedinvasomes were incorporated into a carbopol 934 solution to create a gel. …”
    Get full text
    Article
  12. 72

    Spectrophotometric Determination of Gemifloxacin Mesylate, Moxifloxacin Hydrochloride, and Enrofloxacin in Pharmaceutical Formulations Using Acid Dyes by Ayman A. Gouda, Alaa S. Amin, Ragaa El-Sheikh, Amira G. Yousef

    Published 2014-01-01
    “…The formed complexes were extracted with chloroform and measured at 420, 408, 416, 415, and 422 nm for BCG, BCP, BPB, BTB, and MO, respectively, for GMF; at 410, 415, 416, and 420 nm for BCP, BTB, BPB, and MO, respectively, for MXF; and at 419 and 414 nm for BCG and BTB, respectively, in case of ENF. …”
    Get full text
    Article
  13. 73

    Effect of Methotrexate Injection on Orthodontic Tooth Movement: An Experimental Study on Rats by Amin Golshah, Khaled Omidi, Nafiseh Nikkerdar, Hedaiat Moradpoor, Fatemeh Ghorbani

    Published 2021-01-01
    “…All rats were sacrificed with chloroform inhalation after 21 days; their maxilla was resected, and the mean number of Howship’s lacunae, blood vessels, osteoclasts, and resorption lacunae was counted. …”
    Get full text
    Article
  14. 74

    Determination of Cell Permeabilization and Beta-Galactosidase Extraction from Aspergillus oryzae CCT 0977 Grown in Cheese Whey by Caroline dos Santos Viana, Denise Renata Pedrinho, Luiz Rodrigo Ito Morioka, Hélio Hiroshi Suguimoto

    Published 2018-01-01
    “…For beta-galactosidase extraction from the biomass, the most efficient condition was 5.3% chloroform at 48°C, with an enzymatic activity of 0.17 U·mL−1. …”
    Get full text
    Article
  15. 75

    The Development and Application of Novel IR and NMR-Based Model for the Evaluation of Carminative Effect of Artemisia judaica L. Essential Oil by Muhammed Alzweiri, Ibrahim M. Alrawashdeh, Sanaa K. Bardaweel

    Published 2014-01-01
    “…Apparently, 10 mg of the oil was able to solubilize water in a chloroform layer up to 4.3% (w/w). In order to correlate the observed surface activity of the oil to its actual composition, GC-MS and GC-FID structural analysis were undertaken. …”
    Get full text
    Article
  16. 76

    In Vitro Study on Glucose Utilization Capacity of Bioactive Fractions of Houttuynia cordata in Isolated Rat Hemidiaphragm and Its Major Phytoconstituent by Manish Kumar, Satyendra K. Prasad, Siva Hemalatha

    Published 2016-01-01
    “…All the fractions, that is, aqueous (AQ), hexane (HEX), chloroform (CHL), and ethyl acetate (EA), obtained from ethanol extract of H. cordata were subjected to phytochemical standardization use in quercetin as a marker with the help of HPTLC. …”
    Get full text
    Article
  17. 77

    Synthesis, spectroscopy, and photophysical properties of newly magnesium (II) phthalocyanine by Mehmet Pişkin, Ömer Faruk Öztürk, Zafer Odabaş

    Published 2021-04-01
    “…It has very good solubility in polar aprotic solvents such as dimethyl sulfoxide, N, N- Dimethylformamide, tetrahydrofuran, dichloromethane, and non-polar solvents such as toluene, chloroform. Its aggregation properties have been studied both in the solvents mentioned above and in N, N- Dimethylformamide at different concentrations. …”
    Get full text
    Article
  18. 78

    Rheological Modeling and Characterization of Ficus platyphylla Gum Exudates by Nnabuk O. Eddy, Paul O. Ameh, Casimir E. Gimba, Eno E. Ebenso

    Published 2013-01-01
    “…The gum is soluble in water, sparingly soluble in ethanol, and insoluble in acetone and chloroform. The nitrogen (0.39%) and protein (2.44%) contents of the gum are relatively low. …”
    Get full text
    Article
  19. 79

    Synthesis of 2-(1-Benzofuran-2-yl)-4-(1,3-benzoxazol-2-yl/ 1,3-benzothiazol-2-yl) Quinolines as Blue Green Fluorescent Probes by Yadav D. Bodke, Sheelavanth Shankerrao, Hosanagara N. Harishkumar

    Published 2013-01-01
    “…The fluorescent properties of newly synthesized compounds were investigated in three different organic solvents like chloroform (CHCl3), tetrahydrofuran (THF), and dimethyl sulfoxide (DMSO). …”
    Get full text
    Article
  20. 80

    Ultrasonic Speed and Related Acoustical Parameters of 1,1ʼ-Binaphthalene-2,2ʼ-diyl Diacetate Solutions at 308.15 K by Pooja P. Adroja, S. P. Gami, J. P. Patel, P. H. Parsania

    Published 2011-01-01
    “…The density (ρ), viscosity (η) and ultrasonic speed (U) (2 MHz) of chloroform, THF, ethyl alcohol, ethyl acetate, 1,4-dioxane and 1,1ʼ-binaphthalene-2,2ʼ-diyl diacetate (DBNA) solutions have been determined at 308.15 K. …”
    Get full text
    Article