摘要
目的采用微波消解-原子吸收光谱法/原子荧光光谱法测定牡丹花粉中铅、镉、总汞、总砷含量,探明洛阳农博园地区牡丹花粉中4种重金属污染物状况。方法选取6个主栽品种牡丹花粉样品,经微波消解后,采用原子吸收光谱法和原子荧光光谱法测定4种重金属污染物含量,并分析和评价测定结果。结果铅、镉、总汞、总砷在一定浓度范围内线性关系良好,相关系数均大于0.998,方法检出限分别为0.010、0.003、0.003、0.010 mg/kg,各元素的加标回收率在94.2%~109.4%之间。6个主栽品种牡丹花粉中均不同程度地检出了4种重金属污染物。方差分析结果显示:4种重金属元素含量的变异系数均大于10%,品种间差异均具有统计学意义。结论本方法准确度高、精密度好。参考相关国家标准,6种牡丹花粉中重金属含量均符合要求,本研究为牡丹花粉资源的综合利用及牡丹花粉产品的开发提供数据支持。
Objective To determine the contents of lead,cadmium,total mercury and total arsenic in the pollen of peony by microwave digestion-atomic absorption spectrometry/atomic fluorescence spectrometry,and explore the status of 4 kinds of heavy metal pollutants in the pollen of peony in Luoyang agricultural expo park area.Methods The content of lead,cadmium,total mercury and total arsenic in the pollen of peony in 6 main cultivars was determined by microwave digestibility-atomic absorption spectrometry/atomic fluorescence spectrometry,and the determination results were analyzed and evaluated.Results The lead,cadmium,total mercury and total arsenic had a good linear relationship in a certain concentration range,the correlation coefficients were greater than 0.998,the limits of detection were 0.010,0.003,0.003 and 0.010 mg/kg.The recoveries of each element were between 94.2%-109.4%.The 4 kinds of heavy metal pollutants were detected in the pollen of the 6 main cultivars,and the variance analysis results showed that the variation coefficients of the content of the 4 heavy metal elements were all greater than 10%,and the differences among different cultivars showed statistical significance.Conclusion The method has high accuracy and precision.According to the relevant national standard,the content of heavy metals in the pollen of 6 kinds of peony meets the requirements.This study provides data support for the comprehensive utilization of peony pollen resources and the development of peony pollen products.
作者
孙亚真
张孟琴
尤芳芳
王丽莉
SUN Ya-Zhen;ZHANG Meng-Qin;YOU Fang-Fang;WANG Li-Li(Luoyang Customs,Luoyang 471003,China;College of Material and Chemical Engineering,Tongren University,Tongren 554300,China)
出处
《食品安全质量检测学报》
CAS
北大核心
2021年第10期4174-4178,共5页
Journal of Food Safety and Quality
关键词
牡丹花粉
重金属污染物
原子吸收
原子荧光
peony pollen
heavy metal pollutants
atomic absorption
atomic fluorescence
