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Univariate calibrations with or without chemometric assistance for determination of drugs lacking peak maxima in their zero-order profiles.
Spectrochim Acta A Mol Biomol Spectrosc. 2019 Jan 5;206:207-215. doi: 10.1016/j.saa.2018.08.007. Epub 2018 Aug 6.
Spectrochim Acta A Mol Biomol Spectrosc. 2019.
PMID: 30114580
Trandolapril has no sharp peak in its zero-order spectrum and therefore, it is difficult to be measured by direct spectrophotometry. ...The first method for measuring Trandolapril is Constant Multiplication-Spectrum Subtraction (CM-SS), where Trandolapril was …
Trandolapril has no sharp peak in its zero-order spectrum and therefore, it is difficult to be measured by direct spectrophoto …
Impact Study of Mathematical Manipulation on the Resolution Efficiency of the Spectrophotometric Technique-An Application on Veterinary Binary Mixture with Overlapping Absorption Bands.
Lotfy HM, Monir HH, Michael AM, Fayez YM, Nessim CK.
Lotfy HM, et al.
J AOAC Int. 2020 Sep 1;103(5):1412-1423. doi: 10.1093/jaoacint/qsaa024.
J AOAC Int. 2020.
PMID: 33241409
Partitioning methods: which perfectly divide the drugs response at the iso-point such as amplitude modulation, absorbance subtraction and amplitude summation. 2. Extracting methods: which easily calculate zero-order of the two cited drugs in such as ratio sub …
Partitioning methods: which perfectly divide the drugs response at the iso-point such as amplitude modulation, absorbance subtraction …
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Environmental sustainable mathematically processed UV spectroscopic methods for quality control analysis of remogliflozin and teneligliptin: Evaluation of greenness and whiteness.
Attimarad M, Venugopala KN, Nair AB, Sreeharsha N, Molina EIP, Kotnal RB, Tratrat C, Altaysan AI, Balgoname AA, Deb PK.
Attimarad M, et al.
Spectrochim Acta A Mol Biomol Spectrosc. 2022 Oct 5;278:121303. doi: 10.1016/j.saa.2022.121303. Epub 2022 Apr 28.
Spectrochim Acta A Mol Biomol Spectrosc. 2022.
PMID: 35525182
Then analytes were quantified by measuring the peak amplitude of the first derivative spectra at zero crossing points at 230.2 nm and 213.8 nm for REG and TEN in the first derivative method. ...The fourth method was based on the measurement of the peak amplitude of …
Then analytes were quantified by measuring the peak amplitude of the first derivative spectra at zero crossing points at 230.2 …
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Three Different Approaches Based on Derivative Ratio Spectra for Spectrophotometric Resolution of a Quaternary Mixture in Semisolid Dosage Form.
Fahmy NM, Hesham K, Tawakkol SM, AbdelAziz L, Abdelrahman MH.
Fahmy NM, et al.
J AOAC Int. 2021 Sep 27;104(5):1223-1231. doi: 10.1093/jaoacint/qsab059.
J AOAC Int. 2021.
PMID: 33871621
OBJECTIVE: Several spectrophotometric techniques are introduced for the determination of mixtures of tretinoin (TN), hydroquinone (HQ), and fluocinolone acetonide (FA), in the presence of the preservative methyl paraben (MP), without any separation procedure, taking into consider …
OBJECTIVE: Several spectrophotometric techniques are introduced for the determination of mixtures of tretinoin (TN), hydroquinone (HQ), and …
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