孟加拉国一些成年人在工作场所环境下的尿液微量元素水平。

Urine level of trace elements in some adults in Bangladesh under a workplace environment.

作者信息

Khan A H, Saha D K, Biswas S K

机构信息

Chemistry Division, Atomic Energy Centre, Dhaka, Bangladesh.

出版信息

Int J Rad Appl Instrum A. 1990;41(2):143-50. doi: 10.1016/0883-2889(90)90099-3.

DOI:10.1016/0883-2889(90)90099-3

PMID:2158944

Abstract

The urine level of trace elements has been investigated in some normal adults under different workplace environments in Bangladesh. The samples were collected from 58 subjects, randomly selected from about 500 adults working in 10 different workshops and factories located in Dhaka city. Samples were analyzed by the external beam PIXE method. Proton beams of 2.5 MeV energy and 20 nA intensity were used for sample irradiations. For 40 microC irradiations, the concentration of 14 elements in total (K, Ca, Ti, Cr, Mn, Fe, Ni, Cu, Zn, As, Br, Rb, Sr and Mo) in different groups were measured by comparison with a calibration curve obtained from the NBS Orchard Leaf standard (SRM 1571). The results from different workplaces are reported in terms of amount of excretion per unit volume of the sample collected. They, however, do not reflect the total daily excretion level of different subject groups.

摘要

在孟加拉国，已对一些处于不同工作场所环境的正常成年人的尿液微量元素水平进行了调查。样本取自58名受试者，这些受试者是从达卡市10家不同车间和工厂工作的约500名成年人中随机挑选出来的。样本通过外束质子激发X射线发射（PIXE）法进行分析。使用能量为2.5 MeV、强度为20 nA的质子束对样本进行辐照。对于40微库仑的辐照，通过与从美国国家标准与技术研究院（NBS）果园树叶标准物质（SRM 1571）获得的校准曲线进行比较，测量了不同组中总共14种元素（钾、钙、钛、铬、锰、铁、镍、铜、锌、砷、溴、铷、锶和钼）的浓度。不同工作场所的结果以所采集样本单位体积的排泄量来报告。然而，它们并未反映不同受试者组的每日总排泄水平。