Study on determination of seven heavy metal elements in water by inductively coupled plasma mass spectrometry
A method is established for simultaneous determination of Cr,Cu,Zn,Pb,Cd,Ni,and Mo in water by inductively coupled plasma mass spectrometry.Under the optimal analysis conditions,these seven heavy metal elements analyzed show good linear relationships within a certain concentration range,with correlation coefficients greater than 0.999 9 and detection limits ranging from 0.03-0.11 μg·L-1.As this method is used to determine the water quality standard substances,there are no significant errors between the measured values and the recognized values of each element.The relative standard deviation(RSD)of the measurement results is 0.67%-4.08%(n=6).Through the spiked recovery test on the actual sample,the spiked recovery rate is 94.0%-107%.Meanwhile,this method is also used to analyze different types of water samples,indicating that this method has a wide dynamic linear range and can meet the determination of multiple heavy metal elements in various types of water samples.
inductively coupled plasma mass spectrometrywater sampleheavy metal
万方数据
维普
