Alireza Ghiasvand
Department of Chemistry, Lorestan University, Khoramabad, Iran
[ 1 ] - Ultrasonic and Cooling Approaches for Reinforcement of the Microextraction Methods
Since solid-phase and liquid-phase microextraction (SPME and LPME) were introduced, as effective solvent-free methods, many efforts have been made to improve their modes and applications. However, due to limitations with sensitivity and efficiency, researchers have focused on improving the performance of their basic primary modes. In this way, in recent years, different methods such as ultrason...
[ 2 ] - A New Dispersive Liquid-Liquid Microextraction Method Followed by Direct GF-AAS Determination Optimized with Experimental Design and Response Surface Methodology for Determination of Ag(I) in Water Samples
In this research, a rapid, reliable and selective dispersive liquid-liquid microextraction (DLLME) followed by direct injection of microdroplet to graphite furnace atomic absorption spectrometry (GF-AAS) method for the determination of ultra-trace amounts of Ag(I) was developed. Effect of the important experimental parameters on the extraction efficiency of Ag(I) was investigated using response...
[ 3 ] - نمونه برداری و تعیین مقدار کلروبنزن در هوا با روش میکرواستخراج فاز جامد-گاز کروماتوگرافی طیف بین جرمی
Abstract Background and aims: The chlorobenzene is an intermediate chemical that is used in the production of commodities such as herbicides, dyestuffs, and rubber and Causes neurological complications and effects on the respiratory tract. In this research solid phase micro extraction (SPME) was used for the sampling of chlorobenzene in air. The optimum conditions for analysis with gas chrom...
[ 4 ] - کاربرد روش تله سوزنی (Needle Trap) در تعیین مقدار ترکیبات ارگانوهالوژن در هوا
Background and aim s : The correct assessment of volatile organic compounds is a main stage of their control's action plan. Needle trap device (NTD) as a novel technique with all advantages of microextraction methods, is an inexpensive and rapid technique for survey of air pollution agents. In this study the performance of this technique was investigated for sampling and analysis of organohal...
[ 5 ] - توسعه روش ریزاستخراج فاز جامد برای تعیین تتراکلریدکربن و کلروفرم در هوا به روش گاز کروماتوگراف-طیف بین جرمی
Introduction: In this research the solid phase micro extraction (SPME) for sampling and determination of carbon tetrachloride and chloroform in air was developed and effect of ambient parameters on SPME was assessed. Methods: For this purpose standard chamber was built in the laboratory. The concentrations of compounds in the chamber were measured with SPME. The optimum condition for extract...
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