Investigation And Evaluation Of Heavy Metals Of Producing Area Of Chuanxiong In Sichuan

Rhizoma Chuanxiong is well known as genuine medicinal materials all round world.It is conventional chinese medicine which soft nature and acrid flavour, it mainly treat headache,dizziness, flank pain and abdominal pain, arthralgia due to cold, muscular spasm,Amenorrhea,dystocia,carbuncle-abscess,furuncles,So a lot exports. However,due to,the heavy metal content of Rhizoma Chuanxiong in China's Pharmacopoeia is not clearly defined and in recent years some countries implemented more stringent standards of crude drug and licensing of heavy metal-detection method, on China's exports of Chinese herbal medicines have a very negative impact.Planting soil in Aoping town,Pengzhou city which is called " village of Chuanxiong " is selected as the soil samples,carried out on large-scale investigation of Rhizoma Chuanxiong planting soil. Determined and analysised heavy metals in the soil of this region,according to different methods to evaluate their evaluation of heavy metals pollution in the soil,researched suitable for cultivation of Rhizoma Chuanxiong the best soil environment for the cultivation of improved soil Rhizoma Chuanxiong research foundation, and its profile of the soil distribution to determine the impact of soil pollution, to improve and control the ecological environment and provide reference to the plan of sustainable development of socio-economic development.Chuanxiong analysis by two different methods of pre-treatment compared to samples with microwave digestion Chuanxiong Chinese names Republic of the pharmacopoeia for the treatment, can save at least half the time, and the operation more convenient. In addition, the two methods measured the same sample rather, and the recovery rate and the official method equivalent to that of the feasibility of microwave digestion Chuanxiong samples for future work in this area to provide a reference.The Chuanxiong is evaluated by Nemerow index method and single factor index. The average value through evaluation index of single factor pollution ,it shows that the order of five kinds of heavy metal pollution is Pb Cu> Cd>As= Hg in Aoping town;Through evaluation index of Nemerow pollution index,it shows that seven sampling the soil is safe level,20percent of the total,36 soil sampling points are alert level, accounting for 68 percent of the total,and the rest of light pollution,accounted for 12 percent of the total. Nemerow index of integrated pollution is the greatest impact on Cd elements.This paper analyzes heavy metal pollution of Rhizoma Chuanxiong planting soil in Aoping town,and combine with adsorption mechanism of crops to heavy metals in the soil, selecting the most suitable region and reference of the Rhizoma Chuanxiong of cultivation.