Instrument: HP4500(plus) ICP-MS instrument of Hewlett-Packard Company.
Reagents: single-element standard solutions of the above six elements (purchased from the National Center for Specimens or the National Iron and Steel Research Institute); superior purity HNO3; 18 MΩ ultrapure deionized water for pure water.
1.2 Instrument conditions
RF power: 1400 W; sampling depth: 8.5 mm; plasma gas flow: 16 L/min; carrier gas: 1.2 L/min; auxiliary gas: 1.0 L/min; fog chamber temperature: 2 ℃; integration time: 0.1 s; injection interval time: 0.31 s.
1.3 Test method
1.3 Test method p>
Sample preparation: weigh 1.000 0 g of polymerized aluminum chloride (solid or liquid), dissolve with water, add 2 mL of HNO3, shake well, and dilute with pure water to 100 mL. 100 times the dilution rate of the original sample.
The quantitative analysis was performed by the internal standard method, and the internal standard elements were selected as Sc, Y and Bi. A mixed solution of the internal standard elements was added to each sample, and then standardized by a multi-element standard and quantitatively analyzed in the sample solution.
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