Atropine/Hyoscyamine/Methenamine/Methylene Blue/Phenyl Salicylate/Benzoic Acid

2020 ◽  
Author(s):  
Keyword(s):  
Methylene Blue ◽  
Benzoic Acid ◽  
Phenyl Salicylate

Chromatographic Separation and Spectrophotometric Analysis of a Multicomponent Drug Formulation Containing Methylene Blue

1970 ◽  
Vol 53 (4) ◽  
pp. 819-823
Author(s):  
Albert L Woodson
Keyword(s):  
Methylene Blue ◽  
Benzoic Acid ◽  
Atropine Sulfate ◽  
Spectrophotometric Analysis ◽  
Drug Formulation ◽  
Ultraviolet Spectrophotometry ◽  
Phenyl Salicylate ◽  
Visible Spectrophotometry ◽  
Total Alkaloids ◽  
Acid And Base

Abstract Methylene blue, methenamine, phenyl salicylate, benzoic acid, atropine sulfate, and hyoscyamine are separated by chromatographic procedures. Assays are described for each component. Phenyl salicylate, benzoic acid, atropine, and hyoscyamine are isolated by partitition chromatography on acid- and base-Celite columns. These isolated components are quantitated by ultraviolet spectrophotometry (phenyl salicylate and benzoic acid) and visible spectrophotometry (total alkaloids as atropine sulfate). Methenamine is separated and quantitated by GLC on a column of 6% Carbowax 20M on 80–100 mesh Gas Chrom Q. Methylene blue is quantitated by visible spectrophotometry without prior separation. The data obtained with a synthetic mixture and 3 commercial samples are presented.

A 3D 2-fold interpenetrating Cu(II) coordination polymer based on 4,4′-oxybis(benzoic acid) and 1,3-bis(2-methyl-imidazol-1-yl) benzene exhibiting photocatalytic properties

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Shan-Bao Qiao
Keyword(s):  
Methylene Blue ◽  
Coordination Polymer ◽  
Benzoic Acid ◽  
Rhodamine B ◽  
Photocatalytic Properties

Abstract A new Cu(II) complex, [Cu2(1,3-BMIB)(OBA)2] n (1) (1,3-BMIB = 1,3-bis(2-methyl-1H-imidazol-1-yl)benzene, H2OBA = 4,4′-oxybis(benzoic acid)) was hydrothermally synthesized and has been structurally characterized. Complex 1 possesses a 3D 2-fold interpenetrating framework based on [Cu(OBA)] n layers with a Schläfli symbol {412.63}. Complex 1 displays excellent photocatalytic properties in the degradation of methylene blue (MB) and rhodamine B (RhB).

Extraction and recovery of methylene blue from industrial wastewater using benzoic acid as an extractant

2009 ◽  
Vol 163 (1) ◽  
pp. 363-369 ◽  
Author(s):  
G. Muthuraman ◽  
Tjoon Tow Teng ◽  
Cheu Peng Leh ◽  
I. Norli
Keyword(s):  
Methylene Blue ◽  
Benzoic Acid ◽  
Industrial Wastewater

PVBA-UiO-66 using a flexible PVBA with multi-coordination groups as mixed ligands and their super adsorption towards methylene blue

2018 ◽  
Vol 47 (18) ◽  
pp. 6538-6548 ◽  
Author(s):  
Yongfang Yang ◽  
Zhanghao Niu ◽  
Hua Li ◽  
Yehui Ma ◽  
Yue Zhang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Benzoic Acid ◽  
Mixed Ligands

A series of poly-vinyl benzoic acid (PVBA) and UiO-66 materials (PVBA-UiO-66) were prepared by a mixed-linker approach.

A SEM and Light Microscope Study of the Epidermal Leaf Structures of the Carnivorous Plant, Sarracenia purpurea, L.

1971 ◽  
Vol 29 ◽  
pp. 358-359
Author(s):  
B. J. Panessa ◽  
J. F. Gennaro
Keyword(s):  
Methylene Blue ◽  
Toluidine Blue ◽  
Outer Surface ◽  
Microscope Study ◽  
Light Microscope ◽  
Carnivorous Plant ◽  
Sarracenia Purpurea ◽  
Inner Surface

Tissue from the hood and sarcophagus regions were fixed in 6% glutaraldehyde in 1 M.cacodylate buffer and washed in buffer. Tissue for SEM was partially dried, attached to aluminium targets with silver conducting paint, carbon-gold coated(100-500Å), and examined in a Kent Cambridge Stereoscan S4. Tissue for the light microscope was post fixed in 1% aqueous OsO4, dehydrated in acetone (4°C), embedded in Epon 812 and sectioned at ½u on a Sorvall MT 2 ultramicrotome. Cross and longitudinal sections were cut and stained with PAS, 0.5% toluidine blue and 1% azure II-methylene blue. Measurements were made from both SEM and Light micrographs.The tissue had two structurally distinct surfaces, an outer surface with small (225-500 µ) pubescent hairs (12/mm2), numerous stoma (77/mm2), and nectar glands(8/mm2); and an inner surface with large (784-1000 µ)stiff hairs(4/mm2), fewer stoma (46/mm2) and larger, more complex glands(16/mm2), presumably of a digestive nature.

TEM characterization of proton-exchanged LiNbO3 optical waveguides

1986 ◽  
Vol 44 ◽  
pp. 480-481
Author(s):  
W. E. Lee
Keyword(s):  
Refractive Index ◽  
Benzoic Acid ◽  
Optical Waveguides ◽  
Total Internal Reflection ◽  
Index Of Refraction ◽  
Optical Measurements ◽  
Lithium Ions ◽  
Wide Channel ◽  
Tem Characterization

An optical waveguide consists of a several-micron wide channel with a slightly different index of refraction than the host substrate; light can be trapped in the channel by total internal reflection.Optical waveguides can be formed from single-crystal LiNbO3 using the proton exhange technique. In this technique, polished specimens are masked with polycrystal1ine chromium in such a way as to leave 3-13 μm wide channels. These are held in benzoic acid at 249°C for 5 minutes allowing protons to exchange for lithium ions within the channels causing an increase in the refractive index of the channel and creating the waveguide. Unfortunately, optical measurements often reveal a loss in waveguiding ability up to several weeks after exchange.

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