Shamsollahi Hamid Reza, Rastkari Noushin, Nadarloo Maryam, Hosseini Sara Sadat, Sheikhi Razieh, Nabizadeh Ramin
Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran.
Data Brief. 2018 Oct 4;21:92-96. doi: 10.1016/j.dib.2018.10.001. eCollection 2018 Dec.
The aim of this data is comparison of achieved data from salt iodine measurement by titration method with using sodium thiosulfate in presence of lugol׳s reagent and commercial spot- kit. Titration measurement was carried out in two different laboratories using standard samples. 437 samples including 20 commercial brands were collected throughout Iran. The iodine contents of the samples were measured by both the titration method and two most frequently used spot-kit brands in Iran. There is no significant differences between the results obtained from the two brands of spot-kits (ICC = 0.797). The kits sensitivity for determination of negative samples was high (more than 0.9) but by increasing the iodine concentration up to 15 ppm, the kits' sensitivity was decreased. These findings indicate that the titration method is necessary for quantitative purposes, especially for concentrations higher than 30 ppm. However, spot-kits are suitable for qualitative and semi-quantitative measurements.
本数据的目的是比较在卢戈氏试剂存在下使用硫代硫酸钠通过滴定法与商业点测试剂盒进行盐碘测量所获得的数据。滴定测量在两个不同实验室使用标准样品进行。在伊朗各地共收集了437个样品，包括20个商业品牌。通过滴定法以及伊朗最常用的两种点测试剂盒品牌对样品的碘含量进行了测量。两种品牌的点测试剂盒所得结果之间无显著差异（组内相关系数ICC = 0.797）。试剂盒对阴性样品测定的灵敏度较高（大于0.9），但随着碘浓度增加至15 ppm，试剂盒的灵敏度降低。这些结果表明，滴定法对于定量目的是必要的，特别是对于浓度高于30 ppm的情况。然而，点测试剂盒适用于定性和半定量测量。
