三七重金属含量影响因素的初步研究

A Preliminary Study of the Effects of Heavy Metals in Panax notoginseng

目的通过实地调查走访,了解三七的采集加工过程并采集实验样品,样品经清洗处理后,对铜、镉、砷、铅、汞进行测定,通过数据分析,找出影响三七中重金属含量的因素。方法实验材料经采集、清洗、切片、干燥、研磨过筛、微波消解仪消解后,用电感藕合等离子体质谱仪对样品进行测定。结果三七样品经清洗后砷、镉、铅、铜含量均不同程度降低。结论三七中的重金属主要来源于种植的土壤,市场上的商品大部分都是未清洗干净即打蜡、抛光出售,这是引起三七重金属超标的主要原因。

Objective Visits by field surveys to understand the collection process Panax, after cleaning treatment, copper, cadmium, arsenic, lead and mercury were measured through data analysis to identify factors affecting the heavy metal content of Panax. Methods Experimental material was collected, washed, sliced, dried, ground and sieved, after microwave digestion digestion inductively coupled plasma mass spectrometer samples were determined. Results notoginseng samples after cleaning, the arsenic content decreased obviously;cadmium content changed little;copper, lead and a trend of decrease. Conclusion Panax heavy metals in soil planted mainly from commodity markets that most of them are not clean waxing, polishing the sale, which is the main reason causing Panax heavy metals exceeded.