Ansari Dogaheh, Mehdi

[ 1 ] - Optimization of a Dispersive Liquid-Liquid Microextration Method for Analysis of Chlorpyrifos in Urine Using the Chemometrics Method

Aims: The use of simple, low cost, high -efficiency extraction methods for sample preparation in the forensic toxicology has been considered. Nowadays, the chemometrics technique can be used to determine the influencing factors on the response to optimize extraction methods. The aim of this study was to design and optimize a dispersive liquid-liquid microextraction (DLLME) method for extraction...

[ 2 ] - Simultaneous spectrophotometric determination of trigonelline, diosgenin and nicotinic acid in dosage forms prepared from fenugreek seed extract

Mathematical algorithms offer a useful method for quantitative analysis of compounds in multi-component mixtures to overcome the overlapping problems occurred in UV spectrophotometry. The aim of this study is to develop a method to determine the bioactive compounds in herbal dosage forms produced from fenugreek extract. A UV- spectrophotometric method based on mathematical algorithm was used to...

[ 3 ] - Simultaneous spectrophotometric determination of trigonelline, diosgenin and nicotinic acid in dosage forms prepared from fenugreek seed extract

Mathematical algorithms offer a useful method for quantitative analysis of compounds in multi-component mixtures to overcome the overlapping problems occurred in UV spectrophotometry. The aim of this study is to develop a method to determine the bioactive compounds in herbal dosage forms produced from fenugreek extract. A UV- spectrophotometric method based on mathematical algorithm was used to...