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DETERMINATION OF SELENIUM IN WATER BY FAAS

Mingying Zhang

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Abstract

The slotted quartz tube and sulfhydryl cotton fiber is used to increase the sensitivity of conventional FAAS for the determination of micro-amount of Se in water. A slotted quartz tube is positioned on the top of a conventional atomic absorption burner. It is used in conjunction with an air-acetylene flame (lean) to increase the sensitivity for selenium. This method is simple and the cost is low. The results obtained for determination of Se are satisfactory. The recovery of Se is about 95～104%, RSD is 3.0% and the sensitivity is higher than that conventional FAAS about 2～3 order of magnitude.

About this research paper

What this paper is about

The slotted quartz tube and sulfhydryl cotton fiber is used to increase the sensitivity of conventional FAAS for the determination of micro-amount of Se in water. A slotted quartz tube is positioned on the top of a conventional atomic absorption burner. It is used in conjunction with an air-acetylene flame (lean) to increase the sensitivity for selenium. This method is simple and the cost is low. The results obtained for determination of Se are satisfactory. The recovery of Se is about 95～104%, RSD is 3.0% and the sensitivity is higher than that conventional FAAS about 2～3 order of magnitude.

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Available abstract

The slotted quartz tube and sulfhydryl cotton fiber is used to increase the sensitivity of conventional FAAS for the determination of micro-amount of Se in water. A slotted quartz tube is positioned on the top of a conventional atomic absorption burner. It is used in conjunction with an air-acetylene flame (lean) to increase the sensitivity for selenium. This method is simple and the cost is low. The results obtained for determination of Se are satisfactory. The recovery of Se is about 95～104%, RSD is 3.0% and the sensitivity is higher than that conventional FAAS about 2～3 order of magnitude.

Key concepts: Selenium, Chemistry, Tube (container), Quartz, Analytical Chemistry (journal), Atomic absorption spectroscopy, Sensitivity (control systems), Combustor

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