Haleh Omoori Sarabi; Zarrin Eshaghi; Javad Feizy
Abstract
For the first time, hollow fiber-solid liquid phase microextraction (HF-SLPME) using multiwalled carbon nanotube- ion exchange polyurethane foam (MWCNT-PUFIX) as adsorbent along with graphite furnace atomic absorption spectrometry was used to extract and measure the anticancer drug cisplatin. In this ...
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For the first time, hollow fiber-solid liquid phase microextraction (HF-SLPME) using multiwalled carbon nanotube- ion exchange polyurethane foam (MWCNT-PUFIX) as adsorbent along with graphite furnace atomic absorption spectrometry was used to extract and measure the anticancer drug cisplatin. In this method, the nanocomposite dispersed in octanol, is located in the pores and lumen of a porous polypropylene hollow fiber, was used as the extracting phase, this method benefits from high selectivity, high sample purification and enrichment, and reducing the consumption of organic solvents. The major factors affecting the extraction efficiency were investigated. The validation of the method was assessed by linearity, limit of detection, and accuracy calculated as relative recovery percent. The calibration curve was constructed under the optimal conditions was linear in the range of 1.00-55.0 µg/mL and the detection limit was 0.5 µg/mL. This method was successfully used for analysis of biological samples and the obtained results showed that the method has good accuracy and precision.
Fatemeh Moeinpour; Danial Moodi; Haleh Sarabi-Omoori; Zarrin Eshaghi
Abstract
The aim of the present study was to develop electrochemical sensors based on pencil graphite electrode modified with green-caped ZnO, CdO nano particles and potassium tetra chloroplatinate (II), for a simple and fast simultaneous microextraction and determination of Aspirin (ASA) and Ibuprofen (IBU). ...
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The aim of the present study was to develop electrochemical sensors based on pencil graphite electrode modified with green-caped ZnO, CdO nano particles and potassium tetra chloroplatinate (II), for a simple and fast simultaneous microextraction and determination of Aspirin (ASA) and Ibuprofen (IBU). The nanoparticles were initially synthesized by the use of four vegetable extracts including garlic, onion, green onion and cabbage. The fabricated nanoparticles and platinum were then deposited on the surface of a pencil graphite electrode and was used as a working electrode in a three electrodes system. The Taguchi experimental design was employed for investigating the effects different parameters. For this purpose, a Taguchi L16 orthogonal array (OA) design was applied and the results were confirmed by the ANOVA test. The electrochemical behavior of ASA and IBU at the modified electrodes, were studied. The calibration curves were linear in the range of 5.17to 134.0 µg.mL-1 and 3.13 to 231.0 µg.mL-1 for ASA and IBU respectively. The limits of detection for ASA and IBU was calculated to be 0.50 and 0.42 µg.mL-1 respectively. The modified sensor showed good performance for simultaneous analysis of ASA and IBU in biological and pharmaceutical samples.
