Chromatomembrane Method as Sample Preparation for Spectrophotometric Determination of zinc and copper in Pharmaceuticals
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چکیده
Since its existent, the principle of the chromatomembrane mass transfer has been used in flow injection analysis mainly for determining of inorganic and organic substances in environmental samples and coupled with several detection systems such as photometry, voltammetry, inductively coupled plasma-atomic emission spectroscopy, gas chromatography, ion chromatography, and high performance liquid chromatography with acceptable results. Several publications [98, 111, 113, 115, 133, 134] on the use of the CMC for extraction and pre concentration manifold in spectrophotometric determination of inorganic and organic compounds in environmental samples has been reported.
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