Ion-exchanger phase photoacoustic spectrometry for trace analysis of metal ions

Yamada, S.; Yoshimura, Kazuhisa

doi:10.1016/0039-9140(92)80288-o

Cited by 5 publications

(1 citation statement)

References 14 publications

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“…In this paper an attempt is made to try to solve the problem using solid phase spectrometry (SPS), a group of hybrid analytical techniques that combine two operational aspects of the analytical process, the sorption or fixation of the analyte or a derivative product on a solid phase from a solution, and the subsequent measurements of any appropriate optical property (UV-Vis spectrophotometry [14], spectrofluorimetry [15], spectrophosphorimetry [16] and photoacoustic photometry [17]) directly in the solid phase.…”

Section: Introductionmentioning

confidence: 99%

Speciation of selenium (IV) in natural waters by solid phase spectrophotometry

Valencia

Nicolás

Capitán-Vallvey

1999

Talanta

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A method for the speciation of selenium (IV) based on solid-phase spectrophotometry (SPS), has been developed. In acidic conditions selenium (IV) oxidizes potassium iodide and the I 3 − forms an ionic association with Rhodamine B (RB) which is fixed on a dextran type lipophilic gel. The gel phase absorbances at 590 and 800 nm are measured directly, and allows for the determination of selenium (IV) in the range of 0.7 -18.0 mg l − 1 , with a relative standard deviation (RSD) of 2.8%. The method has been applied to the determination of Se(IV) in natural waters.

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Section: Introductionmentioning

confidence: 99%