是否问题

By fuming with sulfuric-phosphoric acid mixture the residual hydrofluoride was then expelled，and boron was finally determined by curcumin spectrophotometry after distillation.

同时，对所拟溶样条件下所得的分析结果全问题进行了进一步探讨，结果证，所拟溶样条件下的测定结果全。