Reversed-Phase-HPLC Assay Method for Simultaneous Estimation of Sorbitol, Sodium Lactate, and Sodium Chlorides in Pharmaceutical Formulations and Drug Solution for Infusion

A rapid, straightforward, sensitive, efficient, and cost-effective reverse-phase high-performance liquid chromatographic method was employed for the simultaneous determination of Sorbitol, Sodium Lactate, and Chlorides in a drug solution for infusion. Sorbitol, Sodium lactate, and Chloride are all officially recognized in the USP monograph. Assay methods are provided through various techniques, with titrations being ineffective for trace-level quantification. Alternatively, IC, AAS, and ICP-MS, though highly accurate, are costly and often unavailable to most testing facilities. When considering methods, it’s important to prioritize both quality control requirements and user-friendly techniques. A simple HPLC simultaneous method was developed for the quantification of Chlorides, Sorbitol, and Sodium Lactate with a shorter run time. The separation utilized a Shimpack SCR-102(H) ion exclusion analytical column (7.9 mm × 300 mm, 7 μm), with a flow rate of 0.6 mL per min. The column compartment temperature was maintained at 40°C, and the injection volume was set at 10 μL, with detection at 200 nm. All measurements were conducted in a 0.1% solution of phosphoric acid. The analytical curves demonstrated linearity (r > 0.9999) in the concentration range of 0.79 to 3.8 mg per mL for Sodium Lactate (SL), 0.16 to 0.79 mg per mL for Sodium Chloride (SC), and 1.5 to 7.2 mg per mL for Sorbitol. Validation of the developed method followed the guidelines of the International Conference on Harmonization (ICH Q2B) and USP. The method exhibited precision, robustness, accuracy, and selectivity. In accelerated stability testing over 6 months, no significant variations were observed in organoleptic analysis and pH. Consequently, the developed method is deemed suitable for routine quality control analyses, enabling the simultaneous determination of Sodium Lactate, Sodium Chloride, and Sorbitol in pharmaceutical formulations and infusions.

Study on the Effect of Shuanghuanglian Powder Needle Combined with Cefoperazone and Sulbactam Sodium on Pseudomonas aeruginosa in Vitro

Objective: To explore the antibacterial activity of combined use of Shuanghuanglian and cefoperazone sulbactam sodium on resistant strains of Pseudomonas aeruginosa. Methods: The Pseudomonas aeruginosa strains which were sensitive and resistant to cefoperazone sulbactam sodium were selected to prepare different test bacterial solutions respectively;The experimental liquid of Shuanghuanglian and Cefoperazone Sulbactam Sodium were prepared separately and set as different test groups and control groups;The Drug Sensitivity Tests of Shuanghuanglian and cefoperazone sulbactam sodium at different concentration gradients which were used alone or used in combination were carried out for different strains with sensitivity and resistance, And use standard entry as a reference control. Result: The results of drug sensitivity test of Shuanghuanglian combined with Cefoperazone-Sulbactam sodium against the resistant strains of Pseudomonas aeruginosa were compared with the results of drug sensitivity test of the two separately used, and the difference was statistically significant (P 〈 0.05) [The drug sensitivity test results of Shuanghuanglian and cefoperazone sulbactam sodium to Pseudomonas aeruginosa resistant strains were statistically significant compared with the drug sensitivity test results of Shuanghuanglian and Cefoperazone Sulbactam Sodium used separately (P 〈 0.05)];There was a dependence between strains and concentration in the effect of the combination of the two drugs. Conclusion: The combination of Shuanghuanglian and cefoperazone sulbactam sodium has synergistic antibacterial or bactericidal effect on Pseudomonas aeruginosa resistant strains. .

高效液相色谱法(HPLC)测定乐脉丸中丹参素钠含量

本研究采用高效液相色谱法(HPLC)测定乐脉丸中丹参素钠含量的方法。采用C18柱(4.6mm×250mm,Column),流动相以甲醇-0.2%冰醋酸(10:90),柱温30℃,检测波长280nm,流速1mL/min。结果表明,本方法具有良好的准确性、稳定性和重复性,可为乐脉丸质量控制和产品研发提供有效参考。同时对目前市面上在售的两种品牌乐脉丸中丹参素钠进行测定,通过测定结果发现丹参素钠含量差别微小,质量相当。

HPLC法测定头孢噻肟钠的有关物质

建立对头孢噻肟钠有关物质的检测方法。使用安捷伦C18色谱柱,以pH6.2的磷酸氢二钠缓冲液-乙腈作为流动相。235 nm的检测波长,30℃的柱温,4℃的进样室温度,1.0 mL·min^(-1)的流速,10μL的进样量。能够对头孢噻肟钠有关物质进行准确的定性和定量。测试结果表明,杂质A、杂质B、杂质C、杂质D、杂质E、杂质F、杂质G、杂质H、杂质7-ACA、杂质J检测限分别为0.0078、0.0151、0.0126、0.0053、0.0108、0.0054、0.0201、0.0129、0.0214、0.0140μg·mL^(-1),定量限分别为0.0266、0.0514、0.0430、0.0188、0.0359、0.0180、0.0674、0.0431、0.0715、0.0472μg·mL^(-1),浓度线性范围0.0180~16.614μg·mL^(-1)内线性关系较好,相关系数≥0.999;回收率在90%~108%范围内。该方法具有较强专属性、灵敏度高且耐用性好,能够满足检测要求。

HPLC法测定溴芬酸钠滴眼液中聚合物的含量

目的建立溴芬酸钠滴眼液中聚合物的含量测定方法。方法采用色谱柱Waters C_(18)(4.6 mm×250 mm,5μm),柱温30℃,流动相A为0.05 mol/L磷酸氢二钾溶液(pH 4.5)-乙腈(75∶25),流动相B为乙腈,梯度洗脱,流速1.0 ml/min,检测波长400 nm。结果聚合物与相邻杂质峰可以有效分离,溴芬酸钠峰的线性范围为0.1~10.0μg/ml(r=0.9995),检出限为0.02μg/ml,定量限为0.05μg/ml。结论建立的含量测定方法简便、准确,可用于溴芬酸钠滴眼液中聚合物的质量控制。

HPLC法测定恶拉戈利钠中间体6有关物质及方法学验证

目的:建立了测定恶拉戈利钠中间体6有关物质的HPLC法,并进行方法学验证。方法:用WATREX Reprosil C_(18)(4 mm×250 mm×5μm)色谱柱,以0.1%磷酸水为流动相A,甲醇为流动相B,进行梯度洗脱,流速1.1 mL/min;用紫外检测器检测,波长215 nm;进样量15μL;柱温25℃。结果:恶拉戈利钠中间体6与其他各中间体分离度好,线性、溶液稳定性、重复性及中间精密度试验结果均符合要求,各中间体的控制限度均可达到定量限。结论:本高效液相色谱法专属性强、灵敏度高、精密度好、方法操作简单、准确,可用于恶拉戈利钠中间体6有关物质的测定。

HPLC法测定贝米肝素钠中苄基三甲基氢氧化铵的残留

建立了贝米肝素钠中苄基三甲基氢氧化铵残留的HPLC检测方法。色谱条件为:Agilent ZORBAX Eclipse XDB-CN色谱柱(250×4.6 mm,5μm),柱温35℃,流动相为0.2 mol/L高氯酸钠水溶液(1 mol·L^(-1)高氯酸调pH=2.2)-乙腈(88∶12),流速为0.8 mL/min,检测波长为207 nm,进样量为50μL。结果表明,苄基三甲基氢氧化铵质量浓度在0.01~1.0μg/mL范围内与峰面积线性关系良好(r=0.9998,n=7);重复性试验结果的RSD为1.21%(n=6);中间精密度试验结果的RSD为1.35%(n=12);耐用性试验结果的RSD为1.20%(n=16);48 h内溶液稳定性良好,RSD为0.19%(n=13);平均加标回收率为102.40%,RSD为1.70%(n=9)。该方法操作简便、灵敏度高、结果准确可靠,可用于贝米肝素钠中苄基三甲基氢氧化铵残留的测定。

Construction of universal quantitative models for the determination of cefoperazone sodium/sulbactam sodium for injection from different manufacturers using near-infrared reflectance spectroscopy

To develop near-infrared （NIR） reflectance spectroscopic methods for the quantitative analysis of cefoperazone sodium/ sulbactam sodium from different manufacturers for injection powder medicaments. Various powders of cefoperazone sodium/ sulbactam sodium were directly analyzed by non-destructive NIR reflectance spectroscopy using the spectrometer EQUINOX55. Two quantitative methods via integrating sphere （IS） and fiberoptic probe （FOP） models were explored from 6 batches of commercial samples and 42 batches of laboratory samples at a content ranging from 30% to 70% for cefoperazone and 60% to 20% for sulbactam. The root mean square errors of cross validation （RMSECV） and the root mean square errors of prediction （RMSEP） of IS were 1.79% and 2.85%, respectively, for cefoperazone sodium, and were 1.86% and 3.08%, respectively, for sulbactam sodium; and those of FOP were 2.93% and 2.92%, respectively, for cefoperazone sodium, and were 2.23% and 3.01%, respectively, for sulbactam sodium. Based on the ICH guidelines and Ref. 12, the quantitative models were then evaluated in terms of specificity, linearity, accuracy, precision, robustness and model transferability. The non-destructive quantitative NIR methods used in this study are applicable for rapid analysis of injectable powdered drugs from different manufacturers.

HPLC法测定注射用头孢米诺钠中的有关物质

目的:建立高效液相色谱法测定注射用头孢米诺钠中有关物质的测定方法。方法:采用Inertsil Ph-3色谱柱(4.6 mm×250 mm,3μm),流动相A为pH值2.5的甲酸铵溶液,流动相B为乙腈,梯度洗脱;柱温为35℃;检测波长为254 nm;流速为1.0 mL/min。结果:该方法下主峰与各杂质峰之间的分离良好,头孢米诺及12种杂质在各自浓度范围内,溶液浓度和峰面积呈良好的线性关系(r≥0.999);12种杂质的平均回收率在95.0%~105.0%范围内,RSD(n=9)<3.0%;定量限、检出限、耐用性等均符合要求。结论:该方法专属性强、灵敏度高、准确度高,可有效检出注射用头孢米诺钠中12种杂质的含量。通过与进口注册标准或中国药典中收载的注射用头孢米诺钠中有关物质的检测方法相比,该方法对杂质的检出能力更强,适用于注射用头孢米诺中有关物质的检测。

HPLC法同时测定依巴斯汀口服溶液中抑菌剂及其降解产物

目的:建立同时测定依巴斯汀口服溶液中羟苯甲酯钠、羟苯丙酯钠两种抑菌剂及其降解产物对羟基苯甲酸含量的HPLC法。方法:色谱柱:Diamonsil C18柱(250 mm*4.6 mm,5μm),流动相:甲醇-1%冰醋酸溶液(58:42),流速:1.0 mL/min,柱温:40℃,检测波长:254 nm,进样量:20μL。结果:各色谱峰分离度良好;阴性样品无干扰;对羟基苯甲酸在0.3391 mg/mL~3.3912 mg/mL范围内线性关系良好(r=0.9997),羟苯甲酯钠在4.8565 mg/mL~48.5654 mg/mL范围内线性关系良好(r=0.9997),羟苯丙酯钠1.2004 mg/mL~12.0043 mg/mL范围内线性关系良好(r=0.9995);对羟基苯甲酸、羟苯甲酯钠、羟苯丙酯钠平均回收率分别为99.71%(RSD:0.95%,n=12)、99.82%(RSD:0.35%,n=9)、100.65%(RSD:0.75%,n=9);精密度、重复性、稳定性试验结果良好。结论:该方法操作简便,结果准确,稳定性好,可用于同时测定依巴斯汀口服溶液中羟苯甲酯钠、羟苯丙酯钠两种抑菌剂及其降解产物对羟基苯甲酸的含量。

HPLC法测定小儿肺热咳喘口服液中3种防腐剂的含量

目的:建立小儿肺热咳喘口服液中3种防腐剂苯甲酸、山梨酸、糖精钠的含量测定方法。方法:采用高效液相色谱法(HPLC),色谱柱为Thermo syncronis C_(18)(250 mm×4.6 mm, 5μm),流动相为乙腈-0.2%磷酸溶液(19∶81),流速1 mL/min,柱温30℃,检测波长320 nm,进样量10μL。结果:苯甲酸、山梨酸、糖精钠在5~60μg/mL范围内与其峰面积均呈良好的线性关系(r>0.999),平均加样回收率分别为99.72%(RSD=1.57%,n=6),97.30%(RSD=1.70%,n=6),101.37%(RSD=0.99%,n=6);苯甲酸、山梨酸、糖精钠精密度试验的RSD分别为0.07%、0.21%、0.18%。结论:实验采用的HPLC法简便、准确、专属性强、重复性好,可用于液体口服制剂中苯甲酸、山梨酸、糖精钠的含量测定。

Cefoperazone sodium/sulbactam sodium vs piperacillin sodium/tazobactam sodium for treatment of respiratory tract infection in elderly patients

BACKGROUND Respiratory tract infections in the elderly are difficult to cure and can easily recur,thereby posing a great threat to patient prognosis and quality of life.AIM To investigate the therapeutic effects of different antibiotics in elderly patients with respiratory tract infection.METHODS Seventy-four elderly patients with respiratory tract infection were randomly allocated to a study(n=37;treated with cefoperazone sodium/sulbactam sodium)or control(n=37;treated with piperacillin sodium/tazobactam sodium on the basis of routine symptomatic support)group.Both groups were treated for 7 d.Time to symptom relief(leukocyte recovery;body temperature recovery;cough and sputum disappearance;and rale disappearance time),treatment effect,and laboratory indexes[procalcitonin(PCT),C-reactive protein(CRP),white blood cell count(WBC),and neutrophil percentage(NE)]before and 7 d after treatment and the incidence of adverse reactions were assessed.RESULTS In the study group,the time to WBC normalization(6.79±2.09 d),time to body temperature normalization(4.15±1.08 d),time to disappearance of cough and sputum(6.19±1.56 d),and time to disappearance of rales(6.68±1.43 d)were shorter than those of the control group(8.89±2.32 d,5.81±1.33 d,8.77±2.11 d,and 8.69±2.12 d,respectively;P=0.000).Total effective rate was higher in the study group(94.59%vs 75.68%,P=0.022).Serum PCT(12.89±3.96μg/L),CRP(19.62±6.44 mg/L),WBC(20.61±6.38×10^(9)/L),and NE(86.14±7.21%)levels of the study group before treatment were similar to those of the control group(14.05±4.11μg/L,18.79±5.96 mg/L,21.21±5.59×10^(9)/L,and 84.39±6.95%,respectively)with no significant differences(P=0.220,0.567,0.668,and 0.291,respectively).After 7 d of treatment,serum PCT,CRP,WBC,and NE levels in the two groups were lower than those before treatment.Serum PCT(2.01±0.56μg/L),CRP(3.11±1.02 mg/L),WBC(5.10±1.83×10^(9)/L),and NE(56.35±7.17%)levels were lower in the study group than in the control group(3.29±0.64μg/L,5.67±1.23 mg/L,8.13±3.01×10^(9)/L,and 64.22±8.08%,respectively;P=0.000).There was no significant difference in the incidence of adverse reactions between the groups(7.50%vs 12.50%,P=0.708).CONCLUSION Piperacillin sodium/tazobactam sodium is superior to cefoperazone sodium/sulbactam sodium in the treatment of elderly patients with respiratory tract infection with a similar safety profile.

Simultaneous Determination of Sulfamonomethoxine Sodium and Trimethoprim in Compound Sulfamonomethoxine Sodium Propolis Solution by High Performance Liquid Chromatography(HPLC)

[Objective] The paper aimed to provide a basis for quality control of compound sulfamonomethoxine sodium propolis solution. [Method] High per- formance liquid chromatography （HPLC） method was used to determine the contents of sulfamonomethoxine sodium and trimethoprim simultaneously in compound sulfamonomethoxine sodium propolis solution. [Result] Sulfamonomethoxine sodium and trimethoprim showed a linear relationship within the concentration of 10 - 500 μg/mL under the following chromatographic conditions： Kromasil C18 column （250 mm × 4.6 mm, 5 μm）, mobile phase 0.02 mol/L phosphoric acid solution- methanol（80：20, V/V）, detection wavelength 270 nm, flow rate 1.0 mL/min, and column temperature 30℃. The average recoveries were 99.3% and 99.4%, respectively. [ Conclusion] The method is accurate and feasible, and can determine sulfamonomethoxine sodium and trimethoprim simultaneously in compound sul- famonomethoxine sodium propolis solution.

HPLC法测定复方醋酸钠林格注射液中醋酸钠和枸橼酸钠的含量

目的 建立同时测定复方醋酸钠林格注射液中醋酸钠和枸橼酸钠含量的高效液相色谱法。方法 采用SHIMADZU Shimpack Scepter C18色谱柱(250 mm×4.6 mm,5μm或效能相当的色谱柱);磷酸盐缓冲液(取磷酸二氢钠0.70 g,加水1 000 ml使溶解,加10%四丁基氢氧化铵水溶液2 ml,混匀,用磷酸调节pH至2.0)-甲醇(95∶5)为流动相;流速1.0 ml/min,检测波长210 nm,柱温40℃,记录色谱图至枸橼酸峰保留时间的3倍。结果 醋酸钠浓度在0.167 43~6.697 24 mg/ml范围内线性关系良好(r=1.000 0),定量限为1.8μg/ml,平均回收率99.5%,RSD为0.5%;枸橼酸钠在0.029 42~1.176 95 mg/ml范围内线性关系良好(r=1.000 0),定量限为0.87μg/ml,平均回收率99.7%,RSD为0.4%。结论 该方法简单,准确,灵敏度高,适用于复方醋酸钠林格注射液中醋酸钠和枸橼酸钠的含量测定。

Method Development and Validation for Simultaneous Estimation of Montelukast Sodium and Desloratadine by RP-HPLC

A novel, precise, accurate, rapid and cost effective isocratic reverse-phase high performance liquid chromatographic (RP-HPLC) method was developed, optimized and validated for the simultaneous estimation of Montelukast Sodium (MON) and Desloratadine (DES) in pharmaceutical dosage forms. The drugs were estimated using Hypersil BDS C18 (250 mm × 4.6 mm I.D., 5 μ particle size) column. The mobile phase composed of orthophosphoric acid and water in the ratio of 20:80 v/v, at a flow rate of 1.0 ml/min was used for the separation. Detection was carried out at 280 nm. The linearity range obtained was 10 - 30 μg/ml for MON and 5 - 15 μg/ml for DES with retention times of 2.929 min and 4.439 min for MON and DES respectively. The correlation coefficient values were found to be 0.999. Precision studies showed % RSD values less than 2% for both the drugs in all the selected concentrations. The percentage recoveries of MON and DES were in the range of 99.59% - 99.82% and 99.60% - 99.80% respectively. The limit of detection (LOD) and limit of quantification (LOQ) were 0.176 μg/ml, 0.587 μg/ml for MON and 0.087 μg/ml, 0.292 μg/ml for DES respectively. The method was validated as per the International Conference on Harmonization (ICH) guidelines. The proposed validated method was successfully used for the quantitative analysis of commercially available tablet dosage forms.

HPLC法同时测定复方磺胺间甲氧嘧啶注射液中磺胺间甲氧嘧啶钠和甲氧苄啶含量

利用高效液相色谱法(HPLC)同时测定复方磺胺间甲氧嘧啶钠注射液中磺胺间甲氧嘧啶钠和甲氧苄啶的含量。采用C18柱(5μm,4.6 mm×250.0 mm),以乙腈∶0.1%磷酸溶液(20∶80,V/V)为流动相,检测波长230 nm,柱温30℃,流速1.0 mL/min。结果表明,磺胺间甲氧嘧啶在5.00~200.00μg/mL浓度范围内与峰面积线性关系良好(R2=0.9996),平均回收率为99.49%,RSD为0.18%;甲氧苄啶在1.00~50.00μg/mL浓度范围内与峰面积线性关系良好(R2=0.9997),平均回收率为99.02%,RSD为0.60%。本方法简单快捷,精密度好,可用于控制复方磺胺间甲氧嘧啶钠注射液中磺胺间甲氧嘧啶钠和甲氧苄啶的含量。

The Study of Effect of Commercial Baicalin Combined with Cefoperazone Sulbactam Sodium on Pseudomonas aeruginosa in Vitro

Objective: To investigate the antibacterial effect of baicalin combined with cefoperazone-sulbactam sodium on drug-resistant strains of Pseudomonas aeruginosa. Method: Pseudomonas aeruginosa strains that are sensitive and resistant to cefoperazone-sulbactam sodium were selected to prepare different test bacterial solutions respectively;The test solutions of baicalin and cefoperazone sulbactam sodium were prepared respectively, and different test groups and control groups were set up;The drug sensitivity tests of different concentration gradients of baicalin and cefoperazone sulbactam sodium used alone and in combination were carried out for different sensitive and drug-resistant strains, and the standard strains were used as parallel control. Result: The drug susceptibility test results of the combined use of baicalin and cefoperazone-sulbactam against Pseudomonas aeruginosa drug-resistant strains were compared with the drug susceptibility results of the two used separately, and the difference was statistically significant (P Pseudomonas aeruginosa.

HPLC法测定塑料滴眼剂瓶中8种抗氧剂及其在吡诺克辛钠滴眼液中的迁移量

目的:建立同时测定吡诺克辛钠滴眼液及滴眼剂瓶中抗氧剂8种抗氧剂含量的方法,考察吡诺克辛钠滴眼液用塑料滴眼剂瓶中添加抗氧剂的种类和含量,以及抗氧剂在药液中的迁移情况。方法:采用Waters e2695高效液相色谱仪;SHISEIDO CAPLCELL PAK C18 MGⅢ(4.6 mm×150 mm,5μm)色谱柱;以乙腈-四氢呋喃-水流动相为流动相,梯度洗脱,流速1.0 mL•min^(-1),柱温:40℃,检测波长:280 nm,进样量:20μL,对吡诺克辛钠滴眼液及滴眼剂瓶中抗氧剂BHA、XH-254、BHT、330、3114、1010、1076、168进行了测定和方法学验证,同时也对低密度聚乙烯药用滴眼剂瓶、聚丙烯药用滴眼剂瓶及吡诺克辛钠滴眼液中抗氧剂含量进行了测定。结果:8种抗氧剂在各自线性范围内线性良好(r≥0.9995),提取试验和迁移试验回收率分别在94.4%~103.6%和88.6%~105.3%,RSD分别在0.7%~2.9%和0.8%~3.0%,检出限在0.09~0.89μg•mL^(-1),定量限在0.27~4.45μg•mL^(-1),分离度、精密度及稳定性均达到相关要求;低密度聚乙烯药用滴眼剂瓶中检出抗氧剂BHT,聚丙烯药用滴眼剂瓶中检出抗氧剂BHT、抗氧剂1010和抗氧剂168,均满足EP限度要求,吡诺克辛钠滴眼液中未检出抗氧剂。结论:本法可用于塑料滴眼剂瓶中抗氧剂的提取和迁移测定,同时可为其他塑料药包材与药物相容性研究中关于抗氧剂的测定提供参考。

HPLC-RID法测定夫西地酸钠软膏中十六醇含量

创建了HPLC-RID测定夫西地酸钠软膏中十六醇含量的分析方法。采用Phenmenex C18色谱柱,以甲醇-水(85∶15)为流动相,流速为1.2mL·min^(-1),柱温35℃,示差折光检测器检测温度为40℃,进样量20μL。实验结果表明,在线性范围内,线性相关系数为0.9997,有良好的线性关系。平均加标回收率为97.3%,RSD为1.8%,表明该方法专属性强,重复性良好,准确度较高,为夫西地酸钠软膏中十六醇含量测定提供新的方法。

炎琥宁的HPLC测定

A HPLC method for determination of potassium sodium 14-deoxy-11,12-didehydroandrographolidesuccinate was established. A C18 column was used with the mobile phase of 0.04mol/L KH2PO4-methanol(3∶7) at thedetection wavelength of 250nm. The calibration curve was linear in the range of 0.005 - 2mg/ml and the detection limit was4.4ng. The average recovery was 99.8%, with RSD of 0.64%,