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Analysis of chlorpheniramine in human urine samples using dispersive liquid-liquid microextraction combined with high-performance liquid chromatography
Maham, Mehdi; Kiarostami, Vahid; Waqif-Husain, Syed; Sharifabadi, Malihe Khoeini.
  • Maham, Mehdi; Islamic Azad University. Department of Chemistry. Aliabad Katoul. IR
  • Kiarostami, Vahid; Islamic Azad University. Department of Chemistry. Aliabad Katoul. IR
  • Waqif-Husain, Syed; Islamic Azad University. Department of Chemistry. Aliabad Katoul. IR
  • Sharifabadi, Malihe Khoeini; Islamic Azad University. Department of Chemistry. Aliabad Katoul. IR
Braz. j. pharm. sci ; 50(3): 551-557, Jul-Sep/2014. tab, graf
Article in English | LILACS | ID: lil-728691
ABSTRACT
A simple and environmentally friendly microextraction technique was used for determination of chlorpheniramine (CPM), an antihistamine drug, in human urine samples using dispersive liquid-liquid microextraction (DLLME) followed by high performance liquid chromatography with diode array detection (HPLC-DAD). In this extraction technique, an appropriate mixture of acetonitrile (disperser solvent) and carbon tetrachloride (extraction solvent) was rapidly injected into the urine sample containing the target analyte. Tiny droplets of extractant were formed and dispersed into the sample solution and then sedimented at the bottom of the conical test tube by centrifugation. Under optimal conditions, the calibration curve was linear in the range of 0.055-5.5 µg mL-1, with a detection limit of 16.5 ng mL-1. This proposed method was successfully applied to the analysis of real urine samples. Low consumption of toxic organic solvents, simplicity of operation, low cost and acceptable figures of merit are the main advantages of the proposed technique.
RESUMO
Utilizou-se uma técnica de microextração simples e ambientalmente amigável para a determinação de clorfeniramina (CPM), anti-histamínico, em amostras de urina humana, utilizando a microextração dispersiva líquido-líquido (DLLME), seguida por cromatografia líquida de alta eficiência com detecção por arranjo de diodos (HPLC-DAD). Nesse método de extração, mistura apropriada de acetonitrila (solvente dispersor) e tetracloreto de carbono (solvente de extração) foi injetada rapidamente na amostra de urina contendo o analito alvo. As pequenas gotículas de agente de extração foram formadas e dispersas na solução da amostra e, em seguida, sedimentadas no fundo do tubo cônico de ensaio por centrifugação. Em condições ótimas, a curva de calibração foi linear no intervalo entre 0,055 e 5,5 µg mL-1, com limite de detecção de 16,5 ng mL-1. O método proposto foi aplicado com sucesso na análise de amostras de urina reais. Baixo consumo de solventes orgânicos tóxicos, simplicidade de operação, baixo custo e figuras de mérito aceitáveis são as principais vantagens do método sugerido.
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Full text: Available Index: LILACS (Americas) Main subject: Chlorpheniramine / Chromatography, Liquid / Urine Specimen Collection / Liquid Phase Microextraction Type of study: Diagnostic study / Evaluation studies Language: English Journal: Braz. j. pharm. sci Year: 2014 Type: Article Affiliation country: Iran Institution/Affiliation country: Islamic Azad University/IR

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Full text: Available Index: LILACS (Americas) Main subject: Chlorpheniramine / Chromatography, Liquid / Urine Specimen Collection / Liquid Phase Microextraction Type of study: Diagnostic study / Evaluation studies Language: English Journal: Braz. j. pharm. sci Year: 2014 Type: Article Affiliation country: Iran Institution/Affiliation country: Islamic Azad University/IR