Detection and Analysis of 20 Elements Content of Umbilicaria esculenta in Huangshan Area
Objective:To evaluate the nutritional value and pollution status of Umbilicaria esculenta in Huangshan area by detecting the contents of 20 elements,such as arsenic and lead.Method:Inductively coupled plasma mass spectrometry was used to detect the contents of 20 elements in Umbilicaria esculenta in Huangshan area.Use the single factor pollution index method and the Nemerow pollution index method to evaluate the degree of pollution.Result:The content of lead element in 11 samples of Umbilicaria esculenta exceeded the standard.The pollution degree of 11 samples was mainly serious pollution and heavy pollution.Conclusion:The lead contamination of 11 samples of Umbilicaria esculenta in Huangshan area should be paid attention to by relevant departments,and relevant measures should be taken to strengthen the daily sampling and monitoring in time to ensure the safety of Umbilicaria esculenta.