the author discussed the improvement on the determination of phosphorus contents by addition of bismuth nitrate in ammonium molybdophosphate to improve the sensibility, the results was satisfied.
煤中磷的测定方法通常采用磷钼蓝光度法;在该法基础上尝试加入了硝酸铋以提高灵敏度;结果令人满意。
matrix bismuth is separated as basic bismuth nitrate by hydrolysis.
基体铋用堿式硝酸铋形式水解分离。
bismuth chloroxide is used to prepare bismuth nitrate by removing chlorine, which transforms bismuth hyponitrate, then bismuth hypocarbonate and finally bismuth oxide by calcinations.