Spectrophotometric determination of some benzothiadiazine diuretics with 7,7,8,8-tetracyanoquinodimethane

Mohamed, Abdel-Maboud I.

doi:10.1016/0039-9140(88)80143-7

Cited by 5 publications

(2 citation statements)

References 15 publications

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“…1 Many reported methods for the determination of the targeted drugs are present in literature. Reported procedures included classical titrimetric, 5,6 electrochemical, 7,8 spectrophotometric, 4, [9][10][11][12][13] spectrofluorimetric, 4,14,15 chromatographic, [16][17][18] and other separation techniques. [19][20][21] Simultaneous determination of studied drugs in certain commercial combined formulations by derivative spectroscopy, [22][23][24] ratio-spectra derivative spectrophotometry and Vierordt's methods, [25][26][27] HPLC, [28][29][30] flow injection dynamic systems 14,31,32 and chemometric methods 33,34 were also reported.…”

Section: Introductionmentioning

confidence: 99%

Multivariate Spectrophotometric Analysis of Certain Antihypertensive Binary Mixtures

Mohamed¹,

Hussein²,

Abdel-Wadood³

2003

Bulletin of Pharmaceutical Sciences. Assiut

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A multivariate calibration method for the analysis of two hypotensive binary mixtures is described. The mixtures are composed of reserpine in combination either with hydrochlorothiazide or hydrofluomethiazide respectively. The components of the two mixtures show a considerable degree of spectral overlapping (83.5-88.5%). Resolution of the binary mixtures under investigation has been accomplished mainly by using classical least squares (CLS) analysis. The mixtures are simultaneously determined in three laboratory prepared tablet forms with high accuracy without interference from the commonly added excipients. Good recoveries were obtained with both synthetic mixtures and prepared tablets. The obtained results were compared with those obtained from official methods and found in good agreement with them. A comparison of the obtained results from CLS were performed with those obtained from principle component regression (PCR).

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Section: Introductionmentioning

confidence: 99%

Multivariate Spectrophotometric Analysis of Certain Antihypertensive Binary Mixtures

Mohamed¹,

Hussein²,

Abdel-Wadood³

2003

Bulletin of Pharmaceutical Sciences. Assiut

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“…Several methods have been reported for the determination of the components of this important drug (furosemide). Titrimetric methods [3][4][5][6][7], Potentiometric methods [8,9] Ultraviolet methods [10][11][12][13][14][15][16], Colorimetric methods [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric Determination of Furosemide Drug in Different Formulations using Schiff ’s Bases

Hassouna¹

2016

FRCIJ

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Simple, accurate and reproducible UV spectrophotometric method was established for the assay of Fourosemide based on the formation of Schiff 's bases coupling with aromatic aldehydes such as benzaldehyde, salicylaldehyde, 2-methoxy benzaldehyde, anisaldehyde, vanilline, 2,3,4-chlorobenzaldehyde, 4-nitro benzaldehyde and dimethylaminobenzaldehyde in presence of sulphuric acid, The optical characteristics such as Beer's law limits, molar absorptivity and Sandell's sensitivity for the methods are given. Regression analysis using the method of least squares was made to evaluate the slope (b), intercept (a) and correlation coefficient (r) and standard error of estimation (SE) for each aldehyde. Determination of furosemide in bulk form and in pharmaceutical formulations were also incorporated.

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The use of 7,7,8,8-tetracyanoquinodimethane for the determination of nortriptyline and desipramine in tablets

1999

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Spectrophotometric determination of some benzothiadiazine diuretics with 7,7,8,8-tetracyanoquinodimethane

Cited by 5 publications

References 15 publications

Multivariate Spectrophotometric Analysis of Certain Antihypertensive Binary Mixtures

Multivariate Spectrophotometric Analysis of Certain Antihypertensive Binary Mixtures

Spectrophotometric Determination of Furosemide Drug in Different Formulations using Schiff ’s Bases

The use of 7,7,8,8-tetracyanoquinodimethane for the determination of nortriptyline and desipramine in tablets

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