摘要
探讨了黄原脂棉富集铅的条件。试验表明 ,p H为 3～ 7时黄原脂棉能定量富集微量铅 ,以硝酸 ( 1 + 99) 5ml,水浴 2 0 min即可定量解脱 ,用火焰原子吸收光谱法进行测定 ,相对标准偏差为5.35% ,回收率为 98.8%～ 1 0 5.2 % ,结果满意。
The experimental conditions under which micro amounts of lead are enriched on xanthate cotton cellulose (CCX), are studied Lead in white wine samples can be enriched quantitatively under the condition of pH 3~4 with CCX, then it is desorped with 5ml of 1% solution of nitric acid in heated boiling water bath for 20min, and determined by flame atomic absorption spectrometry The recovery is in the range of 98 8%~105 2% and the relative standard deviation of the method is 5 35%
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2001年第3期107-108,110,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
