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机构地区:[1]贵州省产品质量检验检测院,贵州贵阳550004
出 处:《中国酿造》2015年第7期142-146,共5页China Brewing
基 金:国家质检总局科技项目(2011QK356)
摘 要:建立了白酒中4种甜味剂(安赛蜜、甜蜜素、糖精钠、三氯蔗糖)的高效液相色谱-串联质谱的检测方法。采用Agilent EC—C18色谱柱,以甲醇-乙酸铵溶液为流动相,柱温35℃,流速0.8mL/min梯度洗脱进行检测。结果表明,4种甜味剂在5~100ng/mL范围内呈良好线性关系(相关系数R^2≥0.9986),检出限为0.001-0.02mg/kg,回收率在82.70%-117.62%之间,相对标准偏差(RSD)为1.09%~4.64%。该检测方法快速灵敏,大大缩短了检测周期和检测成本,并通过大量样品的检测对白酒中甜味剂的来源进行了探讨。A quantification method of four sweeteners (acesulfame, cyclamate, saccharin sodium, sucralose) in Chinese liquor was established by HPLC-MS/MS. Using Agilent EC-C18 as column, methanol-ammonium acetate as mobile phase, the gradient detection was conducted at column temperature 35 ℃ and flow rate 0.8 ml/min. The results showed that the four sweeteners in 5-100 ng/ml showed a good linear relationship (correlation coefficient R^2≥ 0.998 6), and the detection limit was 0.001-0.02 mg/kg, the recovery rate was between 82.70%-117.62%, the relative standard deviation was 1.09%-4.64%. The method was rapid and sensitive, it greatly reduced the testing period and testing costs. The source of sweeteners was discussed by detecting a large number of samples.
关 键 词:白酒 甜味剂 高效液相色谱-串联质谱 检测
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