Department of Chemistry, Faculty of Science, Masaryk University, Kotlárská 2, Brno, Czech Republic.
Talanta. 2010 Mar 15;80(5):1777-81. doi: 10.1016/j.talanta.2009.10.022. Epub 2009 Nov 5.
Vapor generation-inductively coupled plasma-optical emission spectrometry was used for the determination of sulfide in water samples preserved by the addition of a zinc acetate and sodium hydroxide solution. Hydrogen sulfide and acid-volatile sulfides were transformed, by acidification, to a gaseous phase in a vapor generator and subsequently detected by inductively coupled plasma optical emission spectrometry. Compounds interfering with iodometric titration and spectrophotometric determination were examined as potential chemical interferents. The proposed method provides results comparable to iodometric titration in the tested concentration range 0.06-22.0 mg L(-1). Limit of detection for the determination of hydrogen sulfide by this method is 0.03 mg L(-1).
蒸气发生-电感耦合等离子体发射光谱法用于测定经醋酸锌和氢氧化钠溶液保存的水样中的硫化物。通过酸化，将硫化氢和酸可挥发硫化物转化为蒸气发生相中气态，然后用电感耦合等离子体发射光谱法检测。检查了可能的化学干扰物对碘量滴定和分光光度测定的干扰。在所测试的浓度范围 0.06-22.0 mg L(-1) 内，该方法提供的结果与碘量滴定法相当。该方法测定硫化氢的检出限为 0.03 mg L(-1)。
