A fluorimetric method for the determination of chlorine and tetrachloroethene by bleaching of rhodamine B

Reinhard Niessner; Martin Båcker

doi:10.1016/0039-9140(89)80045-1

A fluorimetric method for the determination of chlorine and tetrachloroethene by bleaching of rhodamine B

Reinhard Niessner, Martin Båcker

pro3dure medical GmbH

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

A new fluorimetric method for the determination of tetrachloroethene and chlorine is based on the irreversible bleaching of Rhodamine B, which is either immobilized in a silicone polymer, or collected on a filter from an aerosol. Tetrachloroethene is decomposed to produce small amounts of chlorine, which reduces the fluorescence of Rhodamine B. With the immobilized Rhodamine B the detection limits were 2.1 mg/m¹ for chlorine in air, and for C₂Cl₄ 3.5 mg/m³ and 2.3 mg/l. in the gas and liquid phase respectively. A Rhodamine B aerosol was used as a trace catcher. This aerosol was mixed with the trace gas, irradiated, and collected on a membrane filter and its fluorescence intensity was measured. The detection limits by this approach were estimated to be 6 μg/m³ for Cl₂ and 55 μg/m³ for C₂Cl₄.

Original language	English
Pages (from-to)	1161-1164
Number of pages	4
Journal	Talanta
Volume	36
Issue number	12
DOIs	https://doi.org/10.1016/0039-9140(89)80045-1
State	Published - Dec 1989
Externally published	Yes

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10.1016/0039-9140(89)80045-1

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title = "A fluorimetric method for the determination of chlorine and tetrachloroethene by bleaching of rhodamine B",

abstract = "A new fluorimetric method for the determination of tetrachloroethene and chlorine is based on the irreversible bleaching of Rhodamine B, which is either immobilized in a silicone polymer, or collected on a filter from an aerosol. Tetrachloroethene is decomposed to produce small amounts of chlorine, which reduces the fluorescence of Rhodamine B. With the immobilized Rhodamine B the detection limits were 2.1 mg/m1 for chlorine in air, and for C2Cl4 3.5 mg/m3 and 2.3 mg/l. in the gas and liquid phase respectively. A Rhodamine B aerosol was used as a trace catcher. This aerosol was mixed with the trace gas, irradiated, and collected on a membrane filter and its fluorescence intensity was measured. The detection limits by this approach were estimated to be 6 μg/m3 for Cl2 and 55 μg/m3 for C2Cl4.",

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T1 - A fluorimetric method for the determination of chlorine and tetrachloroethene by bleaching of rhodamine B

AU - Niessner, Reinhard

AU - Båcker, Martin

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N2 - A new fluorimetric method for the determination of tetrachloroethene and chlorine is based on the irreversible bleaching of Rhodamine B, which is either immobilized in a silicone polymer, or collected on a filter from an aerosol. Tetrachloroethene is decomposed to produce small amounts of chlorine, which reduces the fluorescence of Rhodamine B. With the immobilized Rhodamine B the detection limits were 2.1 mg/m1 for chlorine in air, and for C2Cl4 3.5 mg/m3 and 2.3 mg/l. in the gas and liquid phase respectively. A Rhodamine B aerosol was used as a trace catcher. This aerosol was mixed with the trace gas, irradiated, and collected on a membrane filter and its fluorescence intensity was measured. The detection limits by this approach were estimated to be 6 μg/m3 for Cl2 and 55 μg/m3 for C2Cl4.

AB - A new fluorimetric method for the determination of tetrachloroethene and chlorine is based on the irreversible bleaching of Rhodamine B, which is either immobilized in a silicone polymer, or collected on a filter from an aerosol. Tetrachloroethene is decomposed to produce small amounts of chlorine, which reduces the fluorescence of Rhodamine B. With the immobilized Rhodamine B the detection limits were 2.1 mg/m1 for chlorine in air, and for C2Cl4 3.5 mg/m3 and 2.3 mg/l. in the gas and liquid phase respectively. A Rhodamine B aerosol was used as a trace catcher. This aerosol was mixed with the trace gas, irradiated, and collected on a membrane filter and its fluorescence intensity was measured. The detection limits by this approach were estimated to be 6 μg/m3 for Cl2 and 55 μg/m3 for C2Cl4.

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A fluorimetric method for the determination of chlorine and tetrachloroethene by bleaching of rhodamine B

Abstract

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