6 research outputs found

    Recommendations for selection of a liquid stationary phase and geometric parameters of the column when determining triethylamine by gas chromatography

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    The article summarises the results of experimental studies that compared liquid stationary phases used in GC for determination of triethylamine residual solvent in medicinal products. It discusses the results of comparative evaluation of triethylamine peak area RSDs, retention times and tailing factors for different phases and solvents. The authors give recommendations concerning selection of chromatographic columns for triethylamine determination

    Applicability of Capillary Gas-Liquid Chromatography for Determination of Parabens in Pharmaceutical Analysis

    No full text
    The traditional gas-liquid chromatography (GLC) method using packed columns is still used in pharmaceutical analysis for determination of parabens, despite the fact that this technique has a number of serious drawbacks.The aim of the study was to develop a more effective capillary GLC method for determination of parabens in active pharmaceutical ingredients and finished pharmaceutical products.Materials and methods: the study was performed using Agilent 6890N and Agilent 7890B systems with flame-ionisation detectors. The systems were equipped with Agilent 7683B and Agilent G4513A autosamplers, respectively. The following columns were used in the study: ZB-1 15 m Ρ… 0.32 mm Ρ… 0.25 pm, DB-1 30 m Ρ… 0.32 mm Ρ… 3.0 pm, Cp-Sil 5-CB 30 m Ρ… 0.32 mm Ρ… 3.0 pm.Results: the authors developed a method for methylparaben and propylparaben determination using capillary column GLC. The chromatographic parameters (chromatographic system performance, reproducibility of peak areas, peak asymmetry) were determined for both capillary and packed column GLC. The authors outlined the prospects for simultaneous determination of several compounds using the proposed method: a four-component mixture containing methyl-, ethyl-, propyl-, and butylparaben was separated in 9 minutes. The authors used Loma Lux Psoriasis to perform partial validation of the test method. They determined the linearity range and the limit of quantitation for methylparaben and propylparaben, and verified accuracy and intermediate precision of the test method.Conclusions: the results of the study allowed for selection of optimal chromatographic conditions for rapid and high-precision determination of methylparaben and propylparaben in medicinal products. The developed method is recommended for control of the content of these compounds in medicinal products

    ΠŸΡ€Π°ΠΊΡ‚ΠΈΡ‡Π΅ΡΠΊΠΈΠ΅ Ρ€Π΅ΠΊΠΎΠΌΠ΅Π½Π΄Π°Ρ†ΠΈΠΈ ΠΏΠΎ Π²Ρ‹Π±ΠΎΡ€Ρƒ Π½Π΅ΠΏΠΎΠ΄Π²ΠΈΠΆΠ½ΠΎΠΉ ΠΆΠΈΠ΄ΠΊΠΎΠΉ Ρ„Π°Π·Ρ‹ ΠΈ гСомСтричСских ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² ΠΊΠΎΠ»ΠΎΠ½ΠΊΠΈ ΠΏΡ€ΠΈ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ триэтиламина ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ Π³Π°Π·ΠΎΠ²ΠΎΠΉ Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ

    No full text
    The article summarises the results of experimental studies that compared liquid stationary phases used in GC for determination of triethylamine residual solvent in medicinal products. It discusses the results of comparative evaluation of triethylamine peak area RSDs, retention times and tailing factors for different phases and solvents. The authors give recommendations concerning selection of chromatographic columns for triethylamine determination.Π’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ прСдставлСны Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ ΡΠΊΡΠΏΠ΅Ρ€ΠΈΠΌΠ΅Π½Ρ‚Π°Π»ΡŒΠ½Ρ‹Ρ… исслСдований ΠΏΠΎ Π²Ρ‹Π±ΠΎΡ€Ρƒ Π½Π΅ΠΏΠΎΠ΄Π²ΠΈΠΆΠ½Ρ‹Ρ… ΠΆΠΈΠ΄ΠΊΠΈΡ… Ρ„Π°Π· (стационарных Ρ„Π°Π·) для газоТидкостной Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΌΠΎΠΆΠ½ΠΎ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Ρ‚ΡŒ для контроля содСрТания остаточного органичСского растворитСля триэтиламина Π² срСдствах мСдицинского примСнСния. Π’Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Π° ΡΡ€Π°Π²Π½ΠΈΡ‚Π΅Π»ΡŒΠ½Π°Ρ ΠΎΡ†Π΅Π½ΠΊΠ° Π²Π΅Π»ΠΈΡ‡ΠΈΠ½Ρ‹ ΠΎΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ стандартного отклонСния ΠΏΠ»ΠΎΡ‰Π°Π΄ΠΈ ΠΏΠΈΠΊΠ° триэтиламина, Π΅Π³ΠΎ Π²Ρ€Π΅ΠΌΠ΅Π½ΠΈ удСрТивания ΠΈ Ρ„Π°ΠΊΡ‚ΠΎΡ€Π° асиммСтрии ΠΏΠΈΠΊΠ° для Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… Ρ„Π°Π· ΠΈ растворитСлСй. Π”Π°Π½Ρ‹ Ρ€Π΅ΠΊΠΎΠΌΠ΅Π½Π΄Π°Ρ†ΠΈΠΈ ΠΏΠΎ Π²Ρ‹Π±ΠΎΡ€Ρƒ хроматографичСских ΠΊΠΎΠ»ΠΎΠ½ΠΎΠΊ для опрСдСлСния триэтиламина

    Π’ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ примСнСния капиллярной газоТидкостной Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ Π² фармацСвтичСском Π°Π½Π°Π»ΠΈΠ·Π΅ ΠΏΡ€ΠΈ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ ΠΏΠ°Ρ€Π°Π±Π΅Π½ΠΎΠ²

    No full text
    The traditional gas-liquid chromatography (GLC) method using packed columns is still used in pharmaceutical analysis for determination of parabens, despite the fact that this technique has a number of serious drawbacks.The aim of the study was to develop a more effective capillary GLC method for determination of parabens in active pharmaceutical ingredients and finished pharmaceutical products.Materials and methods: the study was performed using Agilent 6890N and Agilent 7890B systems with flame-ionisation detectors. The systems were equipped with Agilent 7683B and Agilent G4513A autosamplers, respectively. The following columns were used in the study: ZB-1 15 m Ρ… 0.32 mm Ρ… 0.25 pm, DB-1 30 m Ρ… 0.32 mm Ρ… 3.0 pm, Cp-Sil 5-CB 30 m Ρ… 0.32 mm Ρ… 3.0 pm.Results: the authors developed a method for methylparaben and propylparaben determination using capillary column GLC. The chromatographic parameters (chromatographic system performance, reproducibility of peak areas, peak asymmetry) were determined for both capillary and packed column GLC. The authors outlined the prospects for simultaneous determination of several compounds using the proposed method: a four-component mixture containing methyl-, ethyl-, propyl-, and butylparaben was separated in 9 minutes. The authors used Loma Lux Psoriasis to perform partial validation of the test method. They determined the linearity range and the limit of quantitation for methylparaben and propylparaben, and verified accuracy and intermediate precision of the test method.Conclusions: the results of the study allowed for selection of optimal chromatographic conditions for rapid and high-precision determination of methylparaben and propylparaben in medicinal products. The developed method is recommended for control of the content of these compounds in medicinal products.Π’ ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅ фармацСвтичСского Π°Π½Π°Π»ΠΈΠ·Π° для опрСдСлСния ΠΏΠ°Ρ€Π°Π±Π΅Π½ΠΎΠ² примСняСтся ΠΈΠΌΠ΅ΡŽΡ‰ΠΈΠΉ ряд ΡΠ΅Ρ€ΡŒΠ΅Π·Π½Ρ‹Ρ… нСдостатков ΠΌΠ΅Ρ‚ΠΎΠ΄ классичСской газоТидкостной Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ (Π“Π–Π₯) с использованиСм насадочных ΠΊΠΎΠ»ΠΎΠ½ΠΎΠΊ.ЦСль Ρ€Π°Π±ΠΎΡ‚Ρ‹: Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Ρ‚ΡŒ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΡƒ Π±ΠΎΠ»Π΅Π΅ эффСктивного опрСдСлСния ΠΏΠ°Ρ€Π°Π±Π΅Π½ΠΎΠ² Π² фармацСвтичСских субстанциях ΠΈ лСкарствСнных срСдствах ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ капиллярной Π“Π–Π₯.ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹: исслСдования ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈΡΡŒ Π½Π° Π³Π°Π·ΠΎΠ²Ρ‹Ρ… Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„Π°Ρ… Agilent 6890N ΠΈ Agilent 7890B с ΠΏΠ»Π°ΠΌΠ΅Π½Π½ΠΎ-ΠΈΠΎΠ½ΠΈΠ·Π°Ρ†ΠΈΠΎΠ½Π½Ρ‹ΠΌ Π΄Π΅Ρ‚Π΅ΠΊΡ‚ΠΎΡ€ΠΎΠΌ, оснащСнных автосамплСрами Agilent 7683B ΠΈ Agilent G4513A соотвСтствСнно. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Π½Ρ‹ хроматографичСскиС ΠΊΠΎΠ»ΠΎΠ½ΠΊΠΈ ZB-1 15 ΠΌ Ρ… 0,32 ΠΌΠΌ Ρ… 0,25 ΠΌΠΊΠΌ, DB-1 30 ΠΌ Ρ… 0,32 ΠΌΠΌ Ρ… 3,0 ΠΌΠΊΠΌ, CP-Sil 5-CB 30 ΠΌ Ρ… 0,32 ΠΌΠΌ Ρ… 3,0 ΠΌΠΊΠΌ.Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹: Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π° ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠ° опрСдСлСния ΠΌΠ΅Ρ‚ΠΈΠ»ΠΏΠ°Ρ€Π°Π±Π΅Π½Π° ΠΈ ΠΏΡ€ΠΎΠΏΠΈΠ»ΠΏΠ°Ρ€Π°Π±Π΅Π½Π° с использованиСм ΠΌΠ΅Ρ‚ΠΎΠ΄Π° газоТидкостной Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ с капиллярной ΠΊΠΎΠ»ΠΎΠ½ΠΊΠΎΠΉ. ΠžΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½Ρ‹ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρ‹ (ΡΡ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ хроматографичСской систСмы, Π²ΠΎΡΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΠΌΠΎΡΡ‚ΡŒ ΠΏΠ»ΠΎΡ‰Π°Π΄Π΅ΠΉ ΠΏΠΈΠΊΠΎΠ², асиммСтрия ΠΏΠΈΠΊΠΎΠ²) хроматографичСского опрСдСлСния ΠΏΠ°Ρ€Π°Π±Π΅Π½ΠΎΠ² ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ капиллярной Π“Π–Π₯ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ Π“Π–Π₯ с насадочной ΠΊΠΎΠ»ΠΎΠ½ΠΊΠΎΠΉ. ΠžΠ±ΠΎΠ·Π½Π°Ρ‡Π΅Π½Ρ‹ пСрспСктивы Π΅Π΄ΠΈΠ½ΠΎΠ²Ρ€Π΅ΠΌΠ΅Π½Π½ΠΎΠ³ΠΎ опрСдСлСния Π½Π΅ΡΠΊΠΎΠ»ΡŒΠΊΠΈΡ… соСдинСний с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΠΎΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠΈ: Π·Π° 9 ΠΌΠΈΠ½ΡƒΡ‚ Π±Ρ‹Π»Π° Ρ€Π°Π·Π΄Π΅Π»Π΅Π½Π° чСтырСхкомпонСнтная смСсь ΠΌΠ΅Ρ‚ΠΈΠ»-, этил-, ΠΏΡ€ΠΎΠΏΠΈΠ»- ΠΈ Π±ΡƒΡ‚ΠΈΠ»ΠΏΠ°Ρ€Π°Π±Π΅Π½Π°. ΠŸΡ€ΠΎΠ²Π΅Π΄Π΅Π½Π° частичная валидация ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠΈ Π½Π° ΠΏΡ€ΠΈΠΌΠ΅Ρ€Π΅ лСкарствСнного срСдства Β«Π›ΠΎΠΌΠ° Π›ΡŽΠΊΡ ΠŸΡΠΎΡ€ΠΈΠ°ΡΠΈΡΒ». УстановлСн Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½ линСйности ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠΈ, ΠΏΡ€Π΅Π΄Π΅Π» количСствСнного опрСдСлСния ΠΌΠ΅Ρ‚ΠΈΠ»ΠΏΠ°Ρ€Π°Π±Π΅Π½Π° ΠΈ ΠΏΡ€ΠΎΠΏΠΈΠ»ΠΏΠ°Ρ€Π°Π±Π΅Π½Π°, ΠΏΠΎΠ΄Ρ‚Π²Π΅Ρ€ΠΆΠ΄Π΅Π½Ρ‹ ΠΏΡ€Π°Π²ΠΈΠ»ΡŒΠ½ΠΎΡΡ‚ΡŒ ΠΈ ΠΏΡ€Π΅Ρ†ΠΈΠ·ΠΈΠΎΠ½Π½ΠΎΡΡ‚ΡŒ (ΡΡ…ΠΎΠ΄ΠΈΠΌΠΎΡΡ‚ΡŒ ΠΈ внутрилабораторная Π²ΠΎΡΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΠΌΠΎΡΡ‚ΡŒ).Π’Ρ‹Π²ΠΎΠ΄Ρ‹: ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½Π½Ρ‹Π΅ испытания ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΈ Π²Ρ‹Π±Ρ€Π°Ρ‚ΡŒ ΠΎΠΏΡ‚ΠΈΠΌΠ°Π»ΡŒΠ½Ρ‹Π΅ хроматографичСскиС условия для быстрого ΠΈ ΠΏΡ€Π΅Ρ†ΠΈΠ·ΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ опрСдСлСния ΠΌΠ΅Ρ‚ΠΈΠ»ΠΏΠ°Ρ€Π°Π±Π΅Π½Π° ΠΈ ΠΏΡ€ΠΎΠΏΠΈΠ»ΠΏΠ°Ρ€Π°Π±Π΅Π½Π° Π² лСкарствСнных срСдствах. Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π½ΡƒΡŽ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΡƒ Ρ€Π΅ΠΊΠΎΠΌΠ΅Π½Π΄ΠΎΠ²Π°Π½ΠΎ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Ρ‚ΡŒ для контроля содСрТания Π΄Π°Π½Π½Ρ‹Ρ… соСдинСний Π² срСдствах мСдицинского примСнСния
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