Limits of interference by iron, manganes
✍
P. Moss
📂
Article
📅
1961
🏛
John Wiley and Sons
🌐
English
⚖ 386 KB
## Abstract Under the conditions described the determination of calcium in the presence of an equivalent amount of magnesium, using Cal‐red as indicator, could tolerate up to 2.0 mg. of iron, 1.0 mg. of manganese, 3 mg. of aluminium and up to 6 mg. of phosphate in 50 ml. of solution.