PDF(Pubmed)
Abstract：
The high levels of mercury toxicity in humans make it necessary to monitor mercury levels in food, pharmaceuticals, and the environment to minimize human exposure. Between June 2020 and October 2021, researchers collected 240 fish samples from different locations along the Yemeni coast to evaluate mercury contamination. The Direct Mercury Analyzer was used to determine the concentration of mercury in each sample. To ensure method accuracy, a series of triplicate mercury concentration analyses were conducted. The samples ranged from 2 to 100 ng to determine linearity and repeatability i.e., within-day variation. The results showed a high level of precision, with a correlation coefficient of 0.9990 and a repeatability of 1.34 %-5.62 % RSD range. The method was also highly accurate, as the mercury recovery results from the contaminated fish samples ranged from 96.77 % to 105.14 %. The limits of detection and quantitation of mercury were 0.0015 ppm and 0.0049 ppm, respectively. This allowed the method to detect trace amounts of mercury in fish meat. Mercury concentration in the 240 fish samples did not exceed the FDA, but below the 0.5 ppm specified limit of YSMO.
摘要：
人类体内的汞毒性很高，因此有必要监测食品中的汞含量，制药，和环境，以尽量减少人类暴露。在2020年6月至2021年10月期间，研究人员从也门海岸的不同地点收集了240个鱼类样本，以评估汞污染情况。使用直接汞分析仪测定每个样品中的汞浓度。为了确保方法的准确性，进行了一系列一式三份的汞浓度分析。样品范围从2到100纳克，以确定线性和重复性，即，日内变化。结果显示了很高的精确度,相关系数为0.9990，重复性为1.34%-5.62%。该方法准确度高,因为受污染的鱼类样品的汞回收率从96.77%到105.14%不等。汞的检测限和定量限分别为0.0015ppm和0.0049ppm,分别。这使得该方法能够检测鱼肉中的痕量汞。240个鱼类样本中的汞浓度没有超过FDA，但低于YSMO规定的0.5ppm限值。
