Solubility modeling of Levofloxactin hemihydrate in supercritical CO2 green solvent using Soave-Redlich-Kwong EoS and density-based models

IF 5.5 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-05-01 DOI:10.1016/j.jtice.2025.106156

Gholamhossein Sodeifian , Hamidreza Bagheri , Hamidreza Bakhshaei Ghorogh Aghaei , Shima Golshani , Mohammadreza Rashidi-Nooshabadi

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Abstract

Backgrounds

Solubility of solid components such pharmaceuticals in green solvents like supercritical carbon dioxide (SC-CO₂) should be measured in order to develop the supercritical fluid (SCF) technology for their reduction size. This is a crucial procedure in assessing the required processes in this type of technology.

Methods

A statistical technique was applied to measure the Levofloxactin hemihydrate (LH) drug solubility. The measurements of drug solubility at various operating conditions were performed by UV-vis investigation. Present study, for the first time, investigates LH solubility in the SC-CO₂ at pressures and temperatures ranging from 120-270 bar and 308-338 K.

Significant Findings

The obtained results showed that the LH solubility is in (3.91-20.01) × 10^-7 range. Both temperature and pressure affected drug solubility and pressure indicated direct effect, however, in the case of temperature a cross-over point was detected. Modeling was also performed by SRK EoS and eight density-based models. All equations have presented acceptable agreements with solubility data. Among density-based models, Sung-Shim with AARD=%5.65 was better one. Eventually, the enthalpies of the LH/SC-CO₂ system were obtained by Bartle et al., KJ and Chrastil correlations.

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Soave-Redlich-Kwong EoS和基于密度模型的左氧氟沙星半水合物在超临界CO2绿色溶剂中的溶解度模型

为了开发超临界流体（SCF）技术，必须测量固体组分（如药物）在超临界二氧化碳（SC-CO2）等绿色溶剂中的溶解度。这是评估这类技术所需过程的关键程序。方法采用统计学方法测定左氧氟沙星半水溶解度。采用紫外-可见法测定了不同操作条件下药物的溶解度。本研究首次研究了LH在120-270 bar和308-338 K的压力和温度下在SC-CO2中的溶解度。结果表明：LH的溶解度为（3.91 ~ 20.01）× 10-7。温度和压力对药物溶解度均有影响，压力对药物溶解度有直接影响，而温度对药物溶解度有交叉点影响。利用SRK EoS和8个基于密度的模型进行建模。所有方程均与溶解度数据一致。在基于密度的模型中，AARD=%5.65的Sung-Shim模型较好。最终，LH/SC-CO2体系的焓由Bartle et al.， KJ和Chrastil关系式得到。

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来源期刊

Journal of the Taiwan Institute of Chemical Engineers 工程技术-工程：化工

CiteScore

9.10

自引率

14.00%

发文量

362

审稿时长

35 days

期刊介绍： Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.