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首页> 外文期刊>Der Pharma Chemica: journal for medicinal chemistry, pharmaceutical chemistry and computational chemistry >Determination of ultra-trace amount mercury (II) ion in Tap water and River water samples with the barium di phenyl amine sulfonate by the chlorate ion in sulfuric acid with kinetic method
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Determination of ultra-trace amount mercury (II) ion in Tap water and River water samples with the barium di phenyl amine sulfonate by the chlorate ion in sulfuric acid with kinetic method

机译：动力学法测定硫酸中的氯离子与二苯胺磺酸钡联用测定自来水和河水中的超痕量汞（II）离子。

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new kinetic spectrophotometic method for the determination of trace amount mercury(II) in Tap water and River water samples has been described based on it s the catalytic effect on the oxidations of barium die phenyl aminosulfunate, by potassium chlorate in sulfuric acid. The reaction is followed spec- trophotometrically by measuring the decrease in the absorbance at 469 nm. Under the optimum conditions of 0.2 molL-1 sulfuric acid, 1.0 × 10-4 mol L-1, barium die phenyl aminosulfunate, 0.01 mol L-1 potassium chlorate at 35oC, calibration graph in the rang of 0.001-0.06 ng L-1 mercury(II). Concentration was obtained with detection limit of 0.2303 g mL-1 by the fixed-time method of 4.5 min. The relative standard deviation for 0.05 ng L-1 mercury(II) is %90. No serious interference was identified. The applicability of the method was demonstrated by the determination of the mercury (II) in Tap water and River water samples.
机译：介绍了一种动力学分光光度法测定自来水和河水中的痕量汞（II）的方法，该方法对氯酸钾在硫酸中氧化钡氨基苯磺酸钡具有催化作用。通过分光光度法通过测量469 nm处吸光度的降低来跟踪反应。在35oC的最佳条件下，分别为0.2 molL-1硫酸，1.0×10-4 mol L-1，钡氨基苯基磺酸钡，0.01 mol L-1氯酸钾，校正图的范围为0.001-0.06 ng L-1汞（II）。通过4.5分钟的固定时间方法获得的检测极限浓度为0.2303 g mL-1。 0.05 ng L-1汞（II）的相对标准偏差为％90。没有发现严重干扰。测定自来水和河水样品中的汞（II）证明了该方法的适用性。

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