Determination of the Concentration of Total Cyanide in Waste Water of a Tobacco Company in Southwestern Nigeria by MT Osobamiro

“…Distillation was carried out followed by spectrophotometric analysis with pyridine-barbituric acid as the colour forming reagent and absorbance was measured at 578nm using UV-Visible spectrophotometer. …”
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Spectrophotometric Determination of Ceftibuten in Bulk and in Pharmaceutical Formulations by R. Vijayalakshmi, P. Bhargavi, P. Srujana Kumari, P. Sruthi, M. D. Dhanaraju

“…The method is based on the formation of blue colored chromogen, when the drug reacts with Folin-Ciocalteu (F-C) reagent in alkaline medium. The colored species has an absorption maximum at 798 nm and obeys Beer’s law in the concentration range 10-50 mcg/mL. …”
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Electroanalytical Methodology for the Direct Determination of 2,4-Dichlorophenoxyacetic Acid in Soil Samples Using a Graphite-Polyurethane Electrode by Fernanda Ramos de Andrade, Renata Alves de Toledo, Carlos Manoel Pedro Vaz

“…An electroanalytical methodology was developed for the direct determination of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) using a graphite-polyurethane composite electrode and square wave voltammetry (SWV). 2,4-D exhibited one reduction peak with characteristics of an irreversible process at −0.54 V (versus Ag/AgCl), which is controlled by the diffusion of the reagent on the electrode surface. After the experimental parameters optimization (pH 2.0, f=50 s−1, a=0.50 V, and ΔEi=0.03 V), analytical curves were constructed in the range of 0.66 mg L−1 to 2.62  mg L−1. …”
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Modification of Tyre Rubber Crumb with Wastes of Plant Oil Production by Guzaliya Faritovna Sagitova, Galiya Nyssanovna Kalmatayeva, Saule Abdrazakovna Sakibayeva, Dina Duisenbekkyzy Assylbekova, Ainur Slambekovna Sadyrbayeva, Zhuldyz Kenzhebayevna Shukhanova

“…In the course of the studies, the fat-and-oil industry wastes’ sorption characteristics are determined, and in relation to oils in static and dynamic conditions, the spent reagent reclamation ways are determined. The authors obtained a tyre reclaim and a modified tyre reclaim using the fat-and-oil industry wastes (soap stock, diatomite, bleaching clay, and fatty acids isolated from soap stock). …”
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Practical solutions for overcoming artificial disulfide scrambling in the non-reduced peptide mapping characterization of monoclonal antibodies by Andrew Kleinberg, Yuan Mao, Ning Li

“…We also introduce maleimide as a cysteine-alkylating reagent and demonstrate its benefits over industry-leading analogs such as N-ethylmaleimide in terms of compatibility with regulatory reports.…”
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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

“…A simple and sensitive derivative spectrophotometric method for simultaneous determination of nickel and copper using 6-(2- naphthyl)-2,3-dihydro-1,2,4-triazine-3-thione (NDTT) as a selective analytical reagent was developed. The complexes of metal ions with NDTT were formed immediately in basic media and extracted with chloroform. …”
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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

“…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. …”
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Comparative Study of Alcoholic Extracts of Different Syrian Grapevine and Olive Leaf Cultivars for Their Antioxidant Activity and Photoprotective Effects by Farah Alhakim, Antoun Laham, Jameela Hasian

“…Expressed as gallic acid equivalents (GAEs), the total phenolic content (TPC) of the samples, as determined by using the Folin–Ciocalteu’s reagent, ranged from 38.39 to 72.78 mg/g dry extract of olive and 65.918–132.7 mg/g dry extract of grape. …”
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Real-time IncuCyte® Assay for the Dynamic Assessment of Live and Dead Cells in 2D Cultures by Arlene Gidda, Suganthi Chittaranjan, Sharon Gorski

“…The IncuCyte Live and Dead Cell assay described here leverages common cell permeability methodologies but uses fluorescence microscopy channels to image both live and dead cells over time and phase microscopy channels to measure confluency. Cytotox green reagent is a cell membrane–impermeable dye that can only be taken up by cells with poor cell membrane integrity. …”
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Detection of Total Phenol in Green and Black Teas by Flow Injection System and Unmodified Screen Printed Electrode by Ivanildo Luiz de Mattos, José Heraclito Zagal

“…The previously filtered tea sample and hexacyanoferrate(III) reagent were introduced simultaneously into two-carrier streams producing two reproducible zones. …”
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Liposome-Encapsulated Bioactive Guttiferone E Exhibits Anti-Inflammatory Effect in Lipopolysaccharide-Stimulated MH-S Macrophages and Cytotoxicity against Human Cancer Cells by Jean Paul Dzoyem, Shashank Reddy Pinnapireddy, Hugues Fouotsa, Jana Brüßler, Frank Runkel, Udo Bakowsky

“…The fluorometric cyclooxygenase (COX) activity assay kit was used to assess the COX activity while the nitric oxide production was evaluated by the Griess reagent method. Results. The liposomes with a mean size of 183.33±17.28 nm were obtained with an entrapment efficiency of 63.86%. …”
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Raman and Fluorescence Spectroscopy of CeO2, Er2O3, Nd2O3, Tm2O3, Yb2O3, La2O3, and Tb4O7 by Jianlan Cui, Gregory A. Hope

“…To better understand and ascertain the mechanisms of flotation reagent interaction with rare earth (RE) minerals, it is necessary to determine the physical and chemical properties of the constituent components. …”
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Formaldehyde in Alcoholic Beverages: Large Chemical Survey Using Purpald Screening Followed by Chromotropic Acid Spectrophotometry with Multivariate Curve Resolution by Julien A. Jendral, Yulia B. Monakhova, Dirk W. Lachenmeier

“…In the first step, samples are qualitatively screened using a simple colorimetric test with the purpald reagent, which is extremely sensitive for formaldehyde (detection limit 0.1 mg/L). 210 samples (41%) gave a positive purpald reaction. …”
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Enhanced Photocatalytic Activity of Hierarchical Macro-Mesoporous Anatase by ZrO2 Incorporation by M. L. García-Benjume, M. I. Espitia-Cabrera, M. E. Contreras-García

“…In order to increase the ways for reagent and product diffusion in the material, a sol-gel hydrothermal synthesis route using Tween-20 as a directing agent to obtain a hierarchical macro-mesoporous structure is proposed. …”
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NiO Nanoparticles: An Efficient Catalyst for the Multicomponent One-Pot Synthesis of Novel Spiro and Condensed Indole Derivatives by Harshita Sachdeva, Diksha Dwivedi, R. R. Bhattacharjee, Sarita Khaturia, Rekha Saroj

“…An efficient catalytic protocol for the synthesis of novel spiro[indoline-3,4′-pyrano[2,3-c]thiazole]carbonitriles and condensed thiazolo[5′′,4′′:5′,6′]pyrano[4′,3′:3,4]furo[2,3-b]indole derivatives is developed in a one-pot three-component approach involving substituted 1H-indole-2,3-diones, activated methylene reagent, and 2-thioxo-4-thiazolidinone under conventional heating and microwave irradiation. …”
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Spectrscopic and Conductometric Analysis of Gabapentin by Sara M. Anis, Mervat M. Hosny, Hisham E. Abdellatef, Mohamed N. El-Balkiny

“…The molar combining ratio for methods (A-B) was found to be (2:1) (drug: reagent) while for method (C-D) it was found to be (1:1).…”
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Diagnostic Role of Plasma MicroRNA-21 in Stable and Unstable Angina Patients and Association with Aging by Md Sayed Ali Sheikh

“…Total RNA was extracted from plasma by using miRNA-based TRIzol reagent. Plasma miR-21 expression levels were determined by real-time polymerase chain reaction. …”
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Titrimetric and Spectrophotometric Determination of Metaprolol tartrate in Pharmaceuticals Using N-Bromosuccinimide by K. Basavaiah, B. C. Somashekar

“…The methods employ N-bromosuccinimide (NBS) as the oxidimetric reagent and two dyes, methyl orange and indigo carmine as spectrophotometric reagents. …”
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Antioxidant and Antimicrobial Activity of New Amide Compounds Containing Azo Group Using Dicyclohexylcarbodiimide (DCC) as Coupling Agent by Dania Mohammed Saleh, Bushra Kamel Al-Salami

“…Compound A2 was reacted with substituted aromatic amines such as 2-amino-4,6-dimethylpyridine, sulfamerazine, sulfadiazine, sulfanilamide, sulfathiazole, and sulfanilic acid to form corresponding amides using DCC as coupling reagent to be promoted condensation reaction. The structures of synthesized compounds have been diagnosed with elemental analysis, FTIR, 1H-NMR, 13C-NMR, and mass spectrometry. …”
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Evaluation of Colorimetric BCA-Based Quantification of Hydrazide Groups on Magnetic Particles by Zuzana Svobodova, Barbora Jankovicova, Zdenek Plichta, Daniel Horak, Zuzana Bilkova

“…In this study, the BCA reagent was applied for quantification of hydrazide groups on MPs. …”
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