Determination of Vanadyl Porphyrins by Liquid-liquid Microextraction and Nano-baskets of p-tert-Calix[4]arene Bearing Di-[N-(X)sulfonye Carboxamide] and Di-(1-propoxy) in Ortho-cone Conformation

作者：Mokhtari Bahram; Pourabdollah Kobra^*

来源：Chemical Research in Chinese Universities, 2012, 28(5): 807-813.

• Nano-basket
• Dispersive liquid-liquid microextraction
• Vanadyl porphyrin
• Calix[4]arene

Dispersive liquid-liquid microextraction technique was introducd to remove the centrifuging step and conduct inclusion microextraction of charged porphyrins by nano-baskets. For nano-baskets of p-tert-calix[4]arene bearing di-[N-(X)sulfonyl carboxamide] and di-(1-propoxy) in ortho-cone conformation was synthesized and used. The related parameters including ligand concentration, the volume of water disperser, salt effect, and extraction time were optimized. The linear range, detection limit(S/N=3) and precision(RSD, n=6) were determined to be 0.2-50, 0.07 mu g/L and 5.3%, respectively. The results reveal that the new approach is competitive analytical tool and an alternative of the traditional methods in the crude oil and related systems.

• 出版日期2012-9