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配制酒中非法添加淫羊藿的鉴别及含量测定 被引量:1
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作者 吴婉琴 范小龙 +7 位作者 江丰 刘国姣 陈冉 高芳 王彬 张啟恒 王会霞 宋哲 《食品安全质量检测学报》 CAS 北大核心 2021年第6期2131-2138,共8页
目的建立高效液相色谱法鉴别配制酒中非法添加淫羊藿及测定淫羊藿7种特征组分的分析方法。方法样品经水浴蒸干后,用甲醇溶液溶解残渣,提取液离心,过滤,上机测定,Waters Symmetry Shield C18(250 mm×4.6 mm, 5μm)色谱柱进行分离,... 目的建立高效液相色谱法鉴别配制酒中非法添加淫羊藿及测定淫羊藿7种特征组分的分析方法。方法样品经水浴蒸干后,用甲醇溶液溶解残渣,提取液离心,过滤,上机测定,Waters Symmetry Shield C18(250 mm×4.6 mm, 5μm)色谱柱进行分离,甲醇和纯水为流动相梯度洗脱,外标法定量测定。结果 7种化合物的线性检测范围最高浓度为100.00μg/mL,相关系数r2>0.99,定量限为0.05~0.08μg/g,于1、2、10倍定量限3个添加水平下进行加标回收实验,7种化合物平均回收率为92.64%~107.21%,相对标准偏差(relative standard deviation, RSD)为0.75%~2.86%。结论该方法操作方便、简单、灵敏度高、重复性好,满足配制酒中非法添加淫羊藿中药材的含量测定,为配制酒的科学监管提供有效的技术支撑。 展开更多
关键词 高效液相色谱法 配制酒 淫羊藿 鉴别
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Motion constraint Markov network model for multi-target tracking 被引量:1
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作者 WU Ming-jun PENG Xian-rong +2 位作者 zhang qi-heng LU Gang FAN Zhi-hua 《Optoelectronics Letters》 EI 2008年第5期375-378,共4页
A typical Markov network for modeling the interaction among targets can handle the error merge problem,but it suffers from the labeling problem due to the blind competition among collaborative trackers. In this paper,... A typical Markov network for modeling the interaction among targets can handle the error merge problem,but it suffers from the labeling problem due to the blind competition among collaborative trackers. In this paper,we propose a motion constraint Markov network model for multi-target tracking. By augmenting the typical Markov network with an ad hoc Markov chain which carries motion constraint prior,this proposed model can overcome the blind competition and direct the label to the corresponding target even in the case of severe occlusion. In addition,the motion constraint prior is formu-lated as a local potential function and can be easily incorporated in the joint distribution representation of the novel model. Experimental results demonstrate that our model is superior to other methods in solving the error merge and labeling problems simultaneously and efficiently. 展开更多
关键词 网络模型 多目标跟踪 交互作用 运动约束
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