Chemiluminescence analysis of menadione sodium bisulfite and analgin in pharmaceutical preparations and biological fluids

1999 ◽  
Vol 21 (4) ◽  
pp. 817-825 ◽  
Author(s):  
Yuming Huang ◽  
Chao Zhang ◽  
Xinrong Zhang ◽  
Zhujun Zhang
1973 ◽  
Vol 56 (6) ◽  
pp. 1460-1463
Author(s):  
Ana María Mayo ◽  
Osmar Nudelman

Abstract Menadione sodium bisulfite is reduced at pH 4 and determined by polarography, using a dropping mercury electrode. The method is simple and rapid and does not require special sample treatment. Average recoveries (%) and standard deviations for menadione sodium bisulfite added to synthetic mixtures at levels of 0.50, 1.00, and 5.0 mg were 99.88 ±2.12, 101.99±2.08, and 100.27±2.53, respectively.


2020 ◽  
Vol 16 (3) ◽  
pp. 208-222
Author(s):  
Miglena Smerikarova ◽  
Stanislav Bozhanov ◽  
Vania Maslarska

Background: Sartans are mostly used as a part of combination with additional medicines in the therapy of essencial hypertension. Preferred combinations are ARB and thiazide diuretics (Hydrochlorothiazide (HCT) and Chlorthalidone (CHL)) or ARB and calcium antagonists. The number of sartans mostly prescribed by specialists is only seven - Candesartan (CDS), Eprosartan (EPS), Irbesartan (IBS), Losartan (LOS), Olmesartan (OMS), Telmisartan (TMS) and Valsartan (VLS). Methods: The widespread use of sartans in the treatment of hypertension requires reliable methods of analysis. Bulk drugs and pharmaceutical preparations should be analyzed to ensure the quality of the medicinal products reaching patients. On the other hand, the analysis of drugs in biological fluids aims to trace and improve patient care by adjusting the therapeutic doses of drugs. According to our knowledge, a review devoted to the analysis of sartans was published in 2014. Results: Spectral methods are widely used in the analysis of bulk drugs and pharmaceutical dosage forms due to their relatively simple procedures, low reagent and sample consumption, speed, precision and accuracy combined with accessibility and comparatively low cost of common apparatus. Many papers for determination of sartans in bulk drugs and pharmaceutical preparations based on liquid chromatographic techniques were published in the available literature. Among these methods, HPLC takes the leading place but UPLC and HPTLC are also present. Conclusion: The widespread use of sartans in the treatment of hypertension requires reliable methods of analysis. Bulk drugs and pharmaceutical preparations should be analyzed to ensure the quality of the medicinal products reaching patients. On the other hand, the analysis of drugs in biological fluids aims to trace and improve patient care by adjusting the therapeutic doses of drugs. Since 2014, many articles have been published on the sartans analysis and this provoked our interest to summarize the latest applications in the analysis of sartans in pharmaceutical formulations and biological media. Articles published from 2014 to 2018 are covered.


2020 ◽  
Vol 16 ◽  
Author(s):  
Marcus Vinicius Martins Rubatino ◽  
Ana Laura Araújo Santos ◽  
Rayssa Araújo dos Santos ◽  
Magali Benjamim de Araújo

: Roxithromycin is one of the most frequently used macrolide antibiotics, a safe group of antimicrobials that acts against Gram-positive bacteria and some Gram-negative bacteria. It is sold in several countries in different dosage forms (tablets and capsules) and strengths (50, 100, 150 and 300 mg). Several analytical methods have been described to quantify roxithromycin in different matrices, such as biological and environmental samples and food. Identifying the main characteristics of the drugs and selecting appropriate analytical methods for their quantification are of paramount importance for understanding the behavior of drugs, metabolites and impurities. This review presents the physicalchemical and microbiological characteristics, properties as well as methods for quantification of roxithromycin in biological fluids, pharmaceutical preparations, food and environmental samples. HPLC coupled to various detection systems is the most used analytical technique to determine roxithromycin in these matrices. Although many analytical methods have been reported for the analysis of this drug, it is very important to include in this context a prospective view, in order to implement new analytical technologies for the quality control of this antimicrobial that contribute to the preservation of economic and environmental impacts.


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