Application of Double-Probe Transducer and Differential Cell to Photoacoustic Detection of Liquid

Chem. J. Chinese Universities ›› 1990, Vol. 11 ›› Issue (1): 15.

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Application of Double-Probe Transducer and Differential Cell to Photoacoustic Detection of Liquid

Zuo Boli, Deng Yanzhuo, Zeng Yun'e

Centre of Analysis and Testing, Department of Chemistry, Wuhan University, Wuhan

Received:1988-07-08 Online:1990-01-24 Published:1990-01-24

Abstract

Abstract: The double-probe transducer and differential cell for photoacoustic detection of liquid were suggested. The overlapped PAsignals, obtained by using such transducer, significantly increase sensitivity or effectually eliminate PAbackground signal due to a solvent. Application of this method to detection of Co²⁺ by nltroso-R-salt reagent at 532 nm was demontrated. The lowest determination concentration is 0. 3 ng/mL, correspounding to 4. 25×10^-5 in absorptivity.

Key words: Photoacoustic, Laser, Transducer

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Zuo Boli, Deng Yanzhuo, Zeng Yun'e . Application of Double-Probe Transducer and Differential Cell to Photoacoustic Detection of Liquid[J]. Chem. J. Chinese Universities, 1990, 11(1): 15.

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Application of Double-Probe Transducer and Differential Cell to Photoacoustic Detection of Liquid

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