摘要
本法采用混合还原液 N_F=S_nSO_4-V_c 测定磷,使一些共存元素的干扰较其它方法有所减少.而在灵敏度和稳定性方面有所提高。混合还原液加入2—3分钟可得到稳定的钼兰。
A mixed reducing liquid,NaF—S_,SO_4—Vc,is used in the determination of phos- phorus.In comparison with other methods,the disturbance of some other coexisted elements is decreased ,and the stability and sensitivity were improved.The stable molybdenum blue is achived after putting the mixed reducing liquid into the solution for 2—3 minutes.
