The use of a digital versatile disc（DVD）-based Ag electrode for the square-wave anodic stripping voltammetric determination of Pb2＋ and Cd2＋ was described. The effect of I- on the stripping analysis of Pb2＋ and ...The use of a digital versatile disc（DVD）-based Ag electrode for the square-wave anodic stripping voltammetric determination of Pb2＋ and Cd2＋ was described. The effect of I- on the stripping analysis of Pb2＋ and Cd2＋ at Ag electrodes was first studied. F significantly improved the stripping peaks of both Pb2＋ and Cd2＋. The square-wave voltammetric stripping response was linear over 5-50 μg/L for Pb2＋ and Cd2＋ with a deposition time of 118 s. The detection limits were 0.2 and 2.6 μg/L for Pb2＋ and Cd2＋, respectively. The high sensitivity, selectivity, and stability of this DVD-based Ag electrode enabled its practical application for simple, rapid and economical determination of trace levels of Cd2＋ and Pb2＋ in tap water samples. In addition, detection can be achieved without sample deoxygenation and the electrode can be easily manufactured.展开更多
DVD 是 Digital Versatile Disc 的缩写,自从上世纪90年代中期推出以来,品种不断增加,如今已成为一个大家族。正如过去的 CD 家族包含有音乐 CD、Video CD 及 CD-ROM 等多种格式,只不过 DVD 家族更大,品种更丰富。不同种类的 DVD 执行...DVD 是 Digital Versatile Disc 的缩写,自从上世纪90年代中期推出以来,品种不断增加,如今已成为一个大家族。正如过去的 CD 家族包含有音乐 CD、Video CD 及 CD-ROM 等多种格式,只不过 DVD 家族更大,品种更丰富。不同种类的 DVD 执行不同的标准,相关的标准及规格是由一个国际组织——DVD Forum(DVD 论坛)制订的。DVD 论坛现有200多家会员,包括 Sony、JVC、Toshiba、Thomson、Pioneer、Hitachi 等。DVD 论坛针对不同种类的 DVD 分别制订了相关的规格书,分别称为 BOOK A、BOOK B、BOOK C、BOOK D 和 BOOK E 五大类。迄今为止,所有的规格都只包括“红光”DVD。至于“蓝光”DVD,因目前尚未有统一的规格书及标准,故不在本文的讨论范围之中。展开更多
文摘The use of a digital versatile disc（DVD）-based Ag electrode for the square-wave anodic stripping voltammetric determination of Pb2＋ and Cd2＋ was described. The effect of I- on the stripping analysis of Pb2＋ and Cd2＋ at Ag electrodes was first studied. F significantly improved the stripping peaks of both Pb2＋ and Cd2＋. The square-wave voltammetric stripping response was linear over 5-50 μg/L for Pb2＋ and Cd2＋ with a deposition time of 118 s. The detection limits were 0.2 and 2.6 μg/L for Pb2＋ and Cd2＋, respectively. The high sensitivity, selectivity, and stability of this DVD-based Ag electrode enabled its practical application for simple, rapid and economical determination of trace levels of Cd2＋ and Pb2＋ in tap water samples. In addition, detection can be achieved without sample deoxygenation and the electrode can be easily manufactured.
文摘DVD 是 Digital Versatile Disc 的缩写,自从上世纪90年代中期推出以来,品种不断增加,如今已成为一个大家族。正如过去的 CD 家族包含有音乐 CD、Video CD 及 CD-ROM 等多种格式,只不过 DVD 家族更大,品种更丰富。不同种类的 DVD 执行不同的标准,相关的标准及规格是由一个国际组织——DVD Forum(DVD 论坛)制订的。DVD 论坛现有200多家会员,包括 Sony、JVC、Toshiba、Thomson、Pioneer、Hitachi 等。DVD 论坛针对不同种类的 DVD 分别制订了相关的规格书,分别称为 BOOK A、BOOK B、BOOK C、BOOK D 和 BOOK E 五大类。迄今为止,所有的规格都只包括“红光”DVD。至于“蓝光”DVD,因目前尚未有统一的规格书及标准,故不在本文的讨论范围之中。
