Determination of 20 Elements in CHUANXIONG by ICP and ICP-MS
Microwave digestion as the main pre-treatment method,the content of 20 elements in chuanxiong was determined by inductively coupled plasma emission spectroscopy(ICP-OES)and inductively coupled plasma mass spectrometry(ICP-MS).The instrument conditions and factors affecting the content of chuanxiong in different regions of the two methods were studied.The limits of detection(LODs)for potassium,calcium,sodium,magnesium,aluminum,and iron measured by inductively coupled plasma emission spectroscopy is 0.001 to 0.023 mg/L;The limits of detection(LODs)of inductively coupled plasma mass spectrometry for the determination of lead,nickel,cadmium,chromium,arsenic,tin,selenium,strontium,antimony,barium,manganese,zinc,and copper is 0.001568 to 0.4625 μ g/L.Both methods have excellent linearity,with correlation coefficients greater than 0.999.Two methods can efficiently and accurately determine the elemental content in Chuanxiong.The high content of potassium,calcium,sodium,magnesium,aluminum,and iron in Chuanxiong varies in different regions,while the content of other elements does not differ significantly.Measurement revealed that the strontium content in the dried samples of Chuanxiong in the experimental area was relatively high,with an average content of 29.2 mg/kg.Strontium has the function of preventing arteriosclerosis and thrombosis.
chuanxiongelementsinductively coupled plasma emission spectroscopy(ICP-OES)inductively coupled plasma mass spectrometry(ICP-MS)
万方数据
维普
