紫外-可见分光光度法测定3种酒中氰化物的浓度  

Determination of Cyanides Concentration in 3 Kinds of Alcoholic Drinks by UV-Vis Spectrophotometry

作　　者：李悦[1] 何颖[2] 李彦懿 肖得力[1] LI Yue HE Ying LI Yanyi XIAO Deli(Tianjin Medical College, Tianjin 300222 China Pharmaceutical University, Nanjing, Jiangsu 211198, China)

机构地区：[1]天津医学高等专科学校,天津300222 [2]中国药科大学,江苏南京211198

出　　处：《酿酒科技》2017年第8期128-131,共4页Liquor-Making Science & Technology

基　　金：青年教师学科研究培育基金项目(项目号:YZQN20151411)

摘　　要：采用紫外可见分光光度法测定了3种常见酒中氰化物浓度,并在此基础上探究不同种类酒对吸光度的影响。结果显示,在500 nm波长处,氰化物浓度在0.00~8.00μg/mL范围内,与吸光度呈良好的线性关系,表明此方法准确可靠。在测定的3种酒中,氰化物浓度顺序为红酒<白酒<木薯酒,其中氰化物浓度最高的木薯酒为0.86μg/mL;氰化物浓度最低的红酒为0.38μg/mL。不同种类的酒通过紫外-可见分光光度法进行测定时,在检测波长处均未见明显干扰,因此紫外-可见分光光度法是测定不同酒中氰化物浓度经济有效、切实可行的分析方法。同时本研究对不同种类酒氰化物浓度比较的准确度及精密度的评定与后续相关研究的展开具有重要意义。The content of cyanides in three kinds of alcoholic drinks was detected by UV-Vis spectrophotometry. On this basis, the influence of different kinds of alcoholic drinks on the absorbance was further investigated. The results showed that, there was a good linear relationship between cyanide concentration （0.00-8.00μg/mL） and absorbance value at 500 nm wavelength. The content of cyanides in three kinds of alcoholic drinks ranked in increasing sequence as red wine 〈 Baijiu 〈 cassava liquor. The content of cyanides was the highest in cassava liquor （0.86 μg/mL） and the lowest in red wine （0.38μg/mL）. Moreover, as the three different kinds of alcoholic drinks were measured by UV-Vis spectrophotometry, no significant interference presented at the detection wavelength. Therefore, UV-Vis spectrophotometry for the determination of cyanides content in alcoholic drinks was economical and feasible. Meanwhile, this study was of great significance in the evaluation of the accuracy and precision of cyanides concentration in alcoholic drinks and the related follow-up studies.

关 键 词：氰化物 酒 紫外可见分光光度法 浓度比较 干扰 

分 类 号：O657.3[理学—分析化学] TS261.7[理学—化学]