TLC densitometric method for screening of lycopsamine in comfrey root (Symphytum officinale L.) extracts using retrorsine as a reference compound by Janeš Damjan, Kreft Samo

“…A method for the analysis of lycopsamine in extracts of comfrey roots was developed and validated, employing thin layer chromatography, derivatisation with Dann-Mattocks reagent followed by densitometric analysis. The new method showed linearity within 0.70 to 7.0 μg of lycopsamine per application of 10 μL of a solution. …”
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A Sensitive Validated Spectrophotometric Method for the Determination of Flucloxacillin Sodium by R. Singh Gujral, S. Manirul Haque, P. Shanker

“…The absorbance was measured at 362 nm against the reagent blank. Under optimized experimental conditions, Beer's law is obeyed in the concentration ranges 1-9 μg/mL for flucloxacillin. …”
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Efficient and Rapid Solvent-Free Acetylation of Alcohols, Phenols, and Thiols Using Catalytic Amounts of Sodium Acetate Trihydrate by Mohammad M. Mojtahedi, Shamim Samadian

“…Under solvent-free conditions, different alcohols and phenols were efficiently acetylated at room temperature within short time periods by using acetic anhydride in the presence of catalytic quantities of sodium acetate trihydrate, which is a very inexpensive and mild reagent. Thiols were also shown to behave equally well under the same conditions. …”
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Vibrational Spectroscopic Study of the Cocrystal Products Formed by Cinchona Alkaloids with 5-Nitrobarbituric Acid by Harry G. Brittain

“…These properties serve to demonstrate the utility of 5-nitrobarbituric acid as a preferred reagent for chemical microscopy, since the differing range of hydrate and structural types would serve to easily differentiate the cinchona alkaloids from each other, even when different compounds contained the same absolute configurations at their dissymmetric centers.…”
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Crosslinking of Chitosan with a Trifunctional Crosslinker and the Adsorption of Acid Dyes and Metal Ions onto the Resulting Polymer by Yoshiaki Shimizu, Yoshihiro Saito, Takeo Nakamura

“…Novel chitosan-based adsorbent materials were synthesized using a trifunctional reagent as a crosslinker and the adsorption capability of the resulting polymers towards two acid dyes and several metal ions was evaluated. …”
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High-Performance Thin-Layer Chromatographic Quantification of Rosmarinic Acid and Rutin in Abnormal Savda Munziq by S. G. Tian, L. D. Xin, Halmuart Upur

“…The compounds were separated on silica gel H thin layer plate with ethyl acetate-formic acid-acetic acid-water 15 : 1 : 1 : 1.5 (v/v) as a developer, trichloroethanol as the color reagent. The plates were scanned at 365 nm. The linear calibration data of rosmarinic acid and rutin were in the range of 0.0508 to 0.2540 μg (r=0.9964), 0.2707 to 1.35354 μg (r=0.9981), respectively. …”
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Risk Factors Predicting Recurrent Small Intestinal Resection for Crohn’s Disease of the Terminal Ileum by Hanna Binder, Hugh J Freeman

“…This study examined potential risk factors for recurrent small intestinal resection in a ‘reagent-grade’ group of 94 consecutive patients with prior removal of histologically defined Crohn’s disease localized to the distal ileum seen by one gastroenterologist at a single teaching hospital. …”
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New Spectrophotometric Determination of Tinofovir in Bulk and Pharmaceutical Dosage Form by Manish Majumder, B. Gopinath, Girish Koni, Sanjeev Kumar Singh

“…Method B is based on the reaction with Folin-ciocalteu phenol’s reagent under alkaline condition with a λmax at 768 nm. …”
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Sonication-Assisted Synthesis of β-Mercuric Sulfide Nanoparticles by Xin Xu, Elizabeth R. Carraway

“…Continued development of synthesis methods is needed to expand approaches that produce uniform particles, while avoiding reagents of high toxicity and ecological impact. A solvent‐based approach was developed using mercuric chloride and elemental sulphur as the mercury and chalcogenide sources. …”
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Determination of Bromate at Trace Level in Sudanese Bottled Drinking Water Using Ion Chromatography by Mei Musa, Ibrahim M. Ahmed, Ismat Atakruni

“…Bromate ion was determined by ion chromatography with spectro-photometric detection after post column reaction with o-dianisidine reagent in acidic medium. IonPac AS19 anion-exchange column was used with 20 mM sodium hydroxide eluent. …”
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Determination of NH4+ in Environmental Water with Interfering Substances Using the Modified Nessler Method by Heonsang Jeong, Jongtaek Park, Hyunook Kim

“…In addition, the polyvinyl alcohol reagent as a dispersing agent was added to water samples to increase the sensitivity and reproducibility of the method. …”
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Synthesis and Use of Complex Titanium-Containing Coagulant in Water Purification Processes by Evgenii Kuzin

“…Despite their high efficiency and the absence of the drawbacks that are typical of traditional reagents, the high cost of titanium compounds restrains their extensive implementation. …”
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Application of Certain π-Acceptors for the Spectrophotometric Determination of Alendronate Sodium in Pharmaceutical Bulk and Dosage Forms by Asad Raza, Muhammad Zia-ul-Haq

“…The optimal reactions conditions values such as the reagent concentration, heating time, and stability of reaction product were determined. …”
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Improvement of Mechanical Properties of Noil Hemp Fiber Reinforced Polypropylene Composites by Resin Modification and Fiber Treatment by Zili Yan, Jianchun Zhang, Hua Zhang, Hao Wang

“…Maleic anhydride grafted polypropylene (MAPP) was used as resin modifier by direct mixing with PP, and hydrophobically modified hydroxyethyl cellulose (HMHEC) was used as fibre treatment reagent by immersing fibre into its aqueous solution. …”
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Lipopolymers as the Basis of Non-Viral Delivery of Therapeutic siRNA Nanoparticles in a Leukemia (MOLM-13) Model by Panadda Yotsomnuk, Amarnath Praphakar Rajendran, Daniel Nisakar Meenakshi Sundaram, Luis Carlos Morales, Cezary Kucharski, Mohammad Nasrullah, Wanwisa Skolpap, Xiaoyan Jiang, Spencer B. Gibson, Joseph Brandwein, Hasan Uludağ

“…We investigated the delivery of siRNA to AML MOLM-13 cells with the use of two lipid-substituted polyethyleneimines (PEIs), a commercially available reagent (Prime-Fect) and a recently reported reagent with improved lipid substitution (PEI1.2k-PHPA-Lin9). …”
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Environmental photocatalytic processes with POM. The photodecomposition of atrazine and photoreduction of metal ions from aqueous solutions by A. Hiskia, A. Troupis, E. Papaconstantinou

“…Polyoxometalate anions (POM), resulting from the condensation of tungstate anions in strongly acidified solutions, can absorb efficiently light in the UV-near Vis region.The produced excited state is a very powerful oxidative reagent which can, mainly via OH radical attack, oxidize and mineralize a great variety of organic pollutants in aqueous solutions, while the photocatalytic circle is closed by reoxidation of the reduced POM, mainly, by O2. …”
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Identification of Contaminated Cells with Viruses, Bacteria, or Fungi by Fourier Transform Infrared Microspectroscopy by V. Erukhimovitch, M. Huleihil, M. Huleihel

“…These results support the potential of developing FTIR microspectroscopy as a simple, reagent free method for identification and discrimination between different tissue infection or contamination with various pathogens.…”
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Activity-Guided Isolation of Antioxidant Compounds from Andrographis stenophylla Leaf by Neelaveni Thangavel, Jayanta Kumar Gupta

“…Amounts of phenolic compounds in each of the extracts were determined using Folin-Ciocalteau reagent and compared to observe the correlation between antioxidant activities and total phenolic content. …”
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Nucleophilicity at copper(-I) in a compound with a Cu–Mg bond by Ross A. Jackson, Nicholas J. Evans, Dawid J. Babula, Thomas M. Horsley Downie, Rex S. C. Charman, Samuel E. Neale, Mary F. Mahon, David J. Liptrot

“…Abstract Copper is ubiquitous as a structural material, and as a reagent in (bio)chemical transformations. A vast number of chemical reactions rely on the near-inevitable preference of copper for positive oxidation states to make useful compounds. …”
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Green Spectrophotometric Determination of Organophosphate in Selected Fruits and Vegetables by Hemraj Sharma, Hari Prasad Sapkota, Kanchan Paudel, Anusha Raila, Sujata Kandel, Pramod Chaudhary, Kritika Bhattarai

“…A simple, sensitive, precise, and environmentally safe spectrophotometry method was developed and validated for the determination of organophosphate in various fruits and vegetables using a UV-Visible spectrophotometer using a magnesia mixture. The volume of reagent used for analysis and the stability of the color complex were also optimized. …”
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