The test solution of copper slag were prepared in this trial by microwave digestion method

and the standard addition method was applied in vanadium-ammonium molybdate spectrophotometric color-imetric method

the standard addition calibration curve linear range was 2～10 μg/mL; Linear correlation coefficient was 0.999 7; Recoveries of spiked test solution was 95.04%～99.85%. This method was simple and rapid

both the decomposition rate was enhanced and the loss of ingredient was reduced

but also the coexistence interference of the sample test solution was effectively inhibited

and the accuracy of test results was improved.