Studies on the determination of inorganic iodine in seawater
Studies on the determination of inorganic iodine in seawater
复制标题
海水中无机碘测定的研究
DOI：
10.1016/0304-4203(74)90004-8
复制
发表时间：
1974
期刊：
影响因子：
3
通讯作者：
C. P. Spencer
中科院分区：
文献类型：
--
作者：
V. Truesdale;C. P. Spencer
现有的用于测定海水中存在的各种形式的碘的方法使用起来费力或笨重。本文描述了 Barkley 和 Thompson (1960) 描述的碘酸盐和总碘方法的改进形式，这是源自 Johannesson (1958) 工作的碘酸盐测定分光光度法程序，以及总碘测定的自动方法。建议采用适合船上使用的碘酸盐和总碘测定程序。当分析含有大约 30 μg/l 碘酸盐的海水的多个重复样品时，两种碘酸盐测定程序返回的标准偏差接近 0.5 μg/l。通过对总碘含量约为 50 μg/l 的海水进行重复分析，自动测定总碘的方法得出的标准偏差为 0.8 μg/l。还描述了用于过滤和储存海水的合适方法。
Existing methods for the determination of the various forms of iodine present in seawater are laborious or unwieldy in use. This paper describes modified forms of the iodate and total iodine methods described by Barkley and Thompson (1960), a spectrophotometric procedure for iodate determination derived from Johannesson's (1958) work, and an automatic method for total iodine determination. Procedures for iodate and total-iodine determination which are suitable for use aboard ship, are recommended. Both procedures for iodate determination returned a standard deviation close to 0.5 μg/l when several replicate samples of a seawater containing approximately 30 μg/l of iodate-iodine were analysed. The automatic method for total iodine determination yielded a standard deviation of 0.8 μg/l by the repeated analysis of a seawater containing a total of approximately 50 μg/l of iodine. Suitable methods for the filtration and storage of seawater are also described.