摘要
提出用孔雀绿 -磷钼杂多酸吸光光度法测定铬铁矿中微量磷时 ,Cr( )产生的正干扰可用背景空白予以扣除。方法简便 ,无需分离 ,灵敏快速且重现性好。
It is found that there is a positive error caused by the presence of chromium(Ⅲ) ion in the determination of phosphorus in chromite by the malachite green phosphomolybdenum heteropoly acid photometric method. The elimination of this interference is effected by compensation with a blank due to its background absorption. The proposed method has the advantages of rapid, sensitive and reproducible.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2000年第10期455-456,共2页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
