| 查看: 637 | 回复: 1 | |||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | |||
[求助]
摘要翻译
|
|||
|
Abstract. A spectrophotometric and derivative spectrophotometric study of Cu-dithizonate complex in aqueous phase in the presence of Triton X-100, a neutral surfactant, is reported. The system obeys Beer's law between 1.0 • 10 -6- 9.0 • 10 -6 mol/1 of Cu2+; detection limit is 12 ng/ml. The molar absorption coefficient, specific absorptivity and Sandell's sensitivity of the complex are 3.06 • 104 1 mo1-1 cm -1, 0.4825 ml g-1 cm-1 and 2.1 • 10 -3 pg cm -2, respectively. The conditional stability constant of the 1 : 2 complex, calculated considering simultaneously existing equilibria, has been found to be 1.73 • 1011 12 mo1-2 (I = 0.07, pH 1.4, temperature = 10~ Absorption studies in the derivative mode have been carried out to determine the absorption maximum of the complex and to overcome interference due to the presence of certain metal ions. The method has been validated by determination of copper in beers, wines, human hair, goat liver and fly ash samples. Key words: dithizone, copper dithizonate, derivative spectrophotometric determination |
回复此楼» 猜你喜欢
售SCI一区T0P文章，我:8O.55.1.O.5.4,科目齐全,可+急
已经有3人回复
-
售SCI文章，我:8O5.5.1.O.54,科目齐全,可+急
已经有3人回复
-
售SCI一区文章，我:8.O.551.O.5.4,科目全,可伽急
已经有3人回复
-
售SCI文章，我:8O5.5.1.O.54,科目齐全,可+急
已经有3人回复
-
售SCI-T0P文章，我:8O.5.5.1.O.54,科目齐全,可+急
已经有6人回复
-
售一区SCI文章T0P，我:8O.551.O54,科目全,可十急
已经有9人回复
-
售SCI-T0P文章，我:8O.5.5.1.O.54,科目齐全,可+急
已经有3人回复
-
考博求助
已经有3人回复
-
售SCI一区文章，我:8.O.551.O.5.4,科目全,可伽急
已经有5人回复
-
售SCI一区T0P文章，我:8.O.55.1.O.5.4,科目全,可+急
已经有4人回复
_▕若¨|相依
木虫 (正式写手)
- 翻译EPI: 41
- 应助: 2 (幼儿园)
- 金币: 1738.9
- 散金: 37
- 帖子: 542
- 在线: 77.1小时
- 虫号: 1716996
- 注册: 2012-03-26
- 性别: MM
- 专业: 电化学分析
【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
转弯为你相遇: 金币+20, 翻译EPI+1, ★★★很有帮助, 20 2012-04-19 15:40:38
转弯为你相遇: 金币+20, 翻译EPI+1, ★★★很有帮助, 20 2012-04-19 15:40:38
|
摘要：关于铜的双硫腙盐复合物在含有表面活性剂聚乙二醇辛基苯基醚的水相中的分光光度法、导数分光光度法的研究报告。该系统在铜离子的浓度范围在1.0 • 10 -6- 9.0 • 10 -6 mol/1内遵循朗伯比尔定律，检出限为12 ng/ml。该化合物的摩尔吸光系数，吸收系数，桑德尔灵敏度分别为3.06 • 104 1 mo1-1 cm -1, 0.4825 ml g-1 cm-1 and 2.1 • 10 -3 pg cm -2。此1 : 2的化合物，考虑 同时现有的平衡，条件稳定常数已发现是1.73•1011 12mo1-2（I= 0.07，PH值1.4，温度为10 ~吸收研究中的导数模式已进行了确定该化合物最大吸收和克服由于存在某些金属离子的干扰。该方法已在测定啤酒中的铜，葡萄酒， 人类的头发，山羊肝脏和粉煤灰样品中被验证 关键词：双硫腙，双硫腙铜，导数分光光度法测定 |
2楼2012-04-19 14:44:26
