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Isolation of salicylsalicylic acid, acetylsalicylsalicylic acid, and acetylsalicylic anhydride from aspirin tablets by extraction and high-pressure liquid chromatography.
Reepmeyer JC, Kirchhoefer RD. Reepmeyer JC, et al. J Pharm Sci. 1979 Sep;68(9):1167-9. doi: 10.1002/jps.2600680929. J Pharm Sci. 1979. PMID: 501542
Aspirin and four salicylate impurities of aspirin (salicylic acid, acetylsalicylsalicylic acid, acetylsalicylic anhydride, and salicylsalicylic acid) were resolved by silica gell TLC and by high-pressure liquid chromatography (HPLC) on a reversed-phase C18 column. . …
Aspirin and four salicylate impurities of aspirin (salicylic acid, acetylsalicylsalicylic acid, acetylsalicylic anhydride, and …
Application of gas-liquid chromatography and high-performance liquid chromatography to the analysis of trace amounts of salicylic acid, acetylsalicylic anhydride and acetylsalicylsalicylic acid in aspirin samples and aspirin formulations.
Ali SL. Ali SL. J Chromatogr. 1976 Nov 3;126:651-63. doi: 10.1016/s0021-9673(01)84109-1. J Chromatogr. 1976. PMID: 977701
Trace amounts of SA in ASA have also been determined by high-performance liquid chromatography (HPLC) on a Sil-X-I adsorption column using light petroleum-ethyl acetate-acetic acid as the mobile phase. Acetylsalicylic anhydride (ASN) and acetylsalicylsalicylic acid …
Trace amounts of SA in ASA have also been determined by high-performance liquid chromatography (HPLC) on a Sil-X-I adsorption column using l …
Quality of Life in Patients with Coronary Artery Disease and Panic Disorder: A Comparative Study.
Srivastava S, Shekhar S, Bhatia MS, Dwivedi S. Srivastava S, et al. Oman Med J. 2017 Jan;32(1):20-26. doi: 10.5001/omj.2017.04. Oman Med J. 2017. PMID: 28042398 Free PMC article.
The CAD group was treated with anti-ischemic drugs (nitrates, betablockers), antiplatelet drugs (acetylsalicylsalicylic acid), anticoagulants (low molecular weight heparin, clopidogrel), and managed for risk factors. ...
The CAD group was treated with anti-ischemic drugs (nitrates, betablockers), antiplatelet drugs (acetylsalicylsalicylic acid), …
The quantitative determination of aspirin and its degradation products in a model solution aerosol.
Blondino FE, Byron PR. Blondino FE, et al. J Pharm Biomed Anal. 1995 Feb;13(2):111-9. doi: 10.1016/0731-7085(94)00131-k. J Pharm Biomed Anal. 1995. PMID: 7766717
To illustrate a typical situation, a method was developed for the analysis of acetylsalicyclic acid (approximately 2.5 x 10(-3) M) and its major degradation products (salicylic acid, acetylsalicylsalicylic acid and salicylsalicylic acid) solubilized in trichloromono …
To illustrate a typical situation, a method was developed for the analysis of acetylsalicyclic acid (approximately 2.5 x 10(-3) M) and its m …
Colorimetric analysis of immunogenic impurities in acetylsalicylic acid.
Bungaard H. Bungaard H. J Pharm Pharmacol. 1976 Jul;28(7):544-7. doi: 10.1111/j.2042-7158.1976.tb02791.x. J Pharm Pharmacol. 1976. PMID: 8605
A rapid and convenient colorimetric method is described for the quantitative determination of the immunogenic impurities in acetylsalicylic acid, acetylsalicylsalicylic acid and acetylsalicylic anhydride. The method involves initial aminolysis of the compounds by am …
A rapid and convenient colorimetric method is described for the quantitative determination of the immunogenic impurities in acetylsalicylic …
Quantitative determination by high-performance liquid chromatography of acetylsalicylic acid and related substances in tablets.
Verstraeten A, Roets E, Hoogmartens J. Verstraeten A, et al. J Chromatogr. 1987 Feb 6;388(1):201-16. doi: 10.1016/s0021-9673(01)94480-2. J Chromatogr. 1987. PMID: 3558647
The extraction solvent is methanol, containing 2% v/v of formic acid. Salicylic acid is the main impurity. Acetylsalicylsalicylic acid is the second most important impurity, and the corresponding salicylsalicylic acid is rarely present. ...
The extraction solvent is methanol, containing 2% v/v of formic acid. Salicylic acid is the main impurity. Acetylsalicylsalicylic …
Solid-state stability of aspirin in the presence of excipients: kinetic interpretation, modeling, and prediction.
Mroso PV, Li Wan Po A, Irwin WJ. Mroso PV, et al. J Pharm Sci. 1982 Oct;71(10):1096-101. doi: 10.1002/jps.2600711004. J Pharm Sci. 1982. PMID: 7143203
Salicylsalicylic acid and acetylsalicylsalicylic acid were identified as decomposition products of aspirin when mixtures of the drug, with magnesium stearate, were stored in the solid state of 60 degrees and 75% relative humidity. ...
Salicylsalicylic acid and acetylsalicylsalicylic acid were identified as decomposition products of aspirin when mixtures of th …
19 results