Comparative study of the continuous wavelet transform, derivative and partial least squares methods applied to the overlapping spectra for the simultaneous quantitative resolution of ascorbic acid and acetylsalicylic acid in effervescent tablets

Dinç, Erdal; Özdemir, Abdil; Băleanu, Dumitru

doi:10.1016/j.jpba.2004.11.020

Cited by 42 publications

(17 citation statements)

References 26 publications

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“…Chemometric calibration methods are observed that it is the best techniques to determinate the amount of each component in the complex mixture. The most accepted chemometric methods in drug analysis are principal component regression (PCR) and partial least squares regression (PLSR) [12,13]. A relationship to be established between matrices of chemical data is determinated at chemometric methods [14].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of drugs used for chronic active gastritis disease by chemometric methods

2017

IJLTET

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Section: Introductionmentioning

confidence: 99%

Simultaneous determination of drugs used for chronic active gastritis disease by chemometric methods

2017

IJLTET

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“…Among these techniques are the multivariate calibration methods which can be performed with easily accessible statistical software and they are currently widely used in pharmaceutical analysis (Palabiyik et al, 2004;Dinc et al, 2005;Mohamed and Salem, 2005;Salem et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Determination of lamivudine and stavudine in pharmaceutical preparations using chemometrics-assisted spectrophotometry

Mohamed

Mikre

2009

Saudi Pharmaceutical Journal

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A simple chemometrics-assisted spectrophotometric method for the simultaneous determination of lamivudine and stavudine in pharmaceutical tablets is described. The UV absorption spectra of the studied drugs, in the range of 200-310 nm, showed a considerable degree of spectral overlapping ([Di ](0.5) = 94.9%). Resolution of the mixture has been accomplished by using classical least-squares regression analysis (CLS) and principle components regression analysis methods (PCR). Beer's law was obeyed for both drugs in the general concentration ranges of 2-12 and 3-15 μg ml(-1) for lamivudine and stavudine, respectively. The proposed methods were successfully applied for the determination of the two drugs in laboratory prepared mixtures. The overall recoveries percent were found 98.58 ± 1.53-101.30 ± 1.35 (CLS) and 98.62 ± 1.65-101.13 ± 1.04 (PCR) for lamivudine and 98.43 ± 1.62-99.42 ± 1.55 (CLS) and 98.23 ± 1.97-101.20 ± 1.79 (PCR) for stavudine, respectively. The commercial tablets percentage content was found 98.10 ± 2.5-102.47 ± 2.94 (CLS) and 99.12 ± 1.71-100.92 ± 1.54 (PCR) for lamivudine and 96.00 ± 2.94-98.17 ± 1.72 (CLS) and 97.40 ± 1.55-97.80 ± 1.92 (PCR) for stavudine, respectively. Good percentage recoveries and proper statistical data obtained with both the laboratory prepared mixtures and the commercial tablets proved the suitability and efficiency of the proposed procedures for routine analysis and quality control purposes with quite satisfactory precision. A comparison of the obtained results from CLS and PCR were also performed with those obtained from reported method. The obtained F- and t-values obtained indicating no significant differences between the results of the proposed and reported methods.

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“…WT to overcome the problem of noisy and incomplete data has been successfully put on a sound statistical basis by Donoho and Johnstone [14,15]. WT was applied to denoising of data [16,17], compressing of signals [18,19], simultaneous determination of chemical species in binary [20][21][22][23][24][25][26][27][28][29][30][31][32], and ternary [33-35,] mixtures and determination of enantiomeric ratio [19].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous spectrophotometric determination of binary mixtures of surfactants using continuous wavelet transformation

Afkhami

Nematollahi

Madrakian

et al. 2009

Journal of Hazardous Materials

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Comparative study of the continuous wavelet transform, derivative and partial least squares methods applied to the overlapping spectra for the simultaneous quantitative resolution of ascorbic acid and acetylsalicylic acid in effervescent tablets

Cited by 42 publications

References 26 publications

Simultaneous determination of drugs used for chronic active gastritis disease by chemometric methods

Simultaneous determination of drugs used for chronic active gastritis disease by chemometric methods

Determination of lamivudine and stavudine in pharmaceutical preparations using chemometrics-assisted spectrophotometry

Simultaneous spectrophotometric determination of binary mixtures of surfactants using continuous wavelet transformation

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