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  • Title: [Determination of aniline derivatives in waste water with reversed-phase high performance liquid chromatography].
    Author: Zhao S, Wei F, Zou H, Xu X.
    Journal: Se Pu; 1997 Nov; 15(6):508-11. PubMed ID: 15739334.
    Abstract:
    A reversed-phase high performance liquid chromatographic method for the determination of aniline derivatives in waste-water is described. Chromatographic conditions were: column, Hypersil BDS (200 mm x 4.0 mm i.d., 5 microm); mobile phase, methanol-water, gradient elution; flow rate, 1.0 mL/min; detection wavelength, 254 nm. Quantification was carried out based on the external standard of aniline derivatives. The pH of waste water sample was adjusted to 11-12 with dilute NaOH solution prior to extraction with CH2Cl2. The extractives concentrated in K-D concentrator and filtered with FH 0.5 microm membrane. Finally make up the volume to 1 mL and test it with reversed-phase high performance liquid chromatography. The linearity range of calibration curve used was 0.005-0.3 microg. The minimum detectable quantities of aniline derivatives varied from 1.20 ng to 3.00 ng. The average recoveries were from 51.57% to 107.92%, and the RSDs of the method were from 1.88% to 5.98%. The method is simple, rapid, and accurate.
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