FAAS法间接测定维生素片中维生素B_1的含量  

Indirect determination of vitamin B_1 in vitamin tablets by flame atomic absorption spectrometry

作　　者：贾彩云[1] 王亦军[1] 魏国涛[1] 赵冰冰[1] 

机构地区：[1]青岛大学化学化工与环境学院,山东青岛266071

出　　处：《化学工程师》2012年第11期40-42,共3页Chemical Engineer

摘　　要：建立了火焰原子吸收光谱（FAAS）法间接测定维生素B片中的维生素B1含量的方法。用过量的Ag＋与硫胺素盐酸盐的Cl-反应,产生AgCl沉淀,用火焰原子分光光度计测量上清液中剩余Ag＋含量进而计算出样品中维生素B1的含量。方法回收率在98%~102%之间,相对标准偏差（RSD%）在1.05%~1.87%之间,方法操作简便,快速,重现性好。An indirect method for the determination of vitamin B1 by flame atomic absorption spectrometry （FAAS）.Excess Ag＋ reacted with C1- exists in thiamine hydrochloride to form AgC1, which was separated by cen- trifuge. Vitamin BI was determined indirectly by determination of Ag＋ in supernatant fluid. The average recoveries were between 98% and 102% ,and the relative standard deviations （RSD%） were 1.05%-1.87%. The results showed that the method was sensitive, accurate, convenient and quick, which can be used to detect Vitamin BI in vitamin tablets.

关 键 词：火焰原子吸收光谱法 维生素B片 维生素B1 

分 类 号：O657.31[理学—分析化学] R914.1[理学—化学]