Determination of Metal Elements Arsenic,Chromium,and Lead in Organic Fertilizers by X-ray Fluorescence Spectroscopy
In order to quickly and accurately analyze the content of arsenic,chromium,and lead in organic fertilizers,better serve the prevention and control of agricultural soil pollution,create a healthy agricultural ecological environment,and ensure the safety of agricultural products,arsenic,chromium,and lead in organic fertilizers were determined by X-ray fluorescence spectroscopy.The precision(RSD)of arsenic,chromium,and lead were 2.5%to 6.2%,2.6%to 5.6%,and 3.4%to 7.8%,respectively.The detection limits of the method are 0.5 mg/kg,3.3 mg/kg,and Pb is 1.8 mg/kg,which meet the quality specification requirements.Compared with the standard NY 525-2021 method,the data consistency is good and reliable.It fully solves the problems of cumbersome operation,long measurement cycle,poor precision,high cost,and environmental pollution,and is worthy of research and reference,with certain application and promotion value.