Speciation of selenium (IV) in natural waters by solid phase spectrophotometry
نویسندگان
چکیده
منابع مشابه
Speciation of selenium (IV) in natural waters by solid phase spectrophotometry.
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...
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ژورنال
عنوان ژورنال: Talanta
سال: 1999
ISSN: 0039-9140
DOI: 10.1016/s0039-9140(99)00088-0