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采用离子色谱法测定烟草薄片中瓜尔胶含量的研究

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中国造纸 2024年第5期43卷 137-142页

作者：邓其馨张廷贵邓宏博张建平刘秀彩鹿洪亮黄华发张颖璞福建中烟工业有限责任公司技术中心福建厦门361021

本研究建立了离子色谱法测定烟草薄片中瓜尔胶含量的方法,具体步骤如下:采用水浸泡烟草薄片并振荡的方式,萃取其中的瓜尔胶;将萃取液蒸干后,采用酸解法将瓜尔胶分解为半乳糖、甘露糖;然后采用离子色谱法测定半乳糖、甘露糖含量,通过公... 详细信息

本研究建立了离子色谱法测定烟草薄片中瓜尔胶含量的方法,具体步骤如下:采用水浸泡烟草薄片并振荡的方式,萃取其中的瓜尔胶;将萃取液蒸干后,采用酸解法将瓜尔胶分解为半乳糖、甘露糖;然后采用离子色谱法测定半乳糖、甘露糖含量,通过公式换算得到样品中的瓜尔胶含量。结果表明,半乳糖和甘露糖在浓度0.1~10 mg/L范围内,具有非常好的线性关系,相关系数R^(2)均≥0.9996,检出限分别为0.0036和0.0022 mg/L,瓜尔胶回收率均≥95.8%,相对标准偏差为1.58%。因此,该方法重复性好,准确度高,适用于烟草薄片中瓜尔胶含量的测定。

关键词：离子色谱烟草薄片瓜尔胶

Uncertainty relations based on Wigner-Yanase skew information

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Communications in Theoretical Physics 2020年第7期72卷 30-35页

作者： Xiaofen Huang tinggui zhang Naihuan Jing School of Mathematics and Statistics Hainan Normal UniversityHaikou571158China Department of Mathematics Shanghai UniversityShanghai 200444China Department of Mathematics North Carolina State UniversityRaleighNC 27695United States of America

In this paper,we use certain norm inequalities to obtain new uncertain relations based on the Wigner-Yanase skew *** for an arbitrary finite number of observables we derive an uncertainty relation outperforming previous lower *** then propose new weighted uncertainty relations for two noncompatible *** separable criteria via skew information are also obtained.

关键词： uncertainty relations skew information entanglement

Quantum legitimacy of reversible gate and a new design of multiplier based on R gate

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Chinese Physics B 2020年第5期29卷 101-106页

作者： Tingyu Ge tinggui zhang Xiaofen Huang School of Mathematics and Statistics Hainan Normal UniversityHaikou 571158China

Quantum full adders play a key role in the design of quantum *** efficiency of a quantum adder directly determines the speed of the quantum computer,and its complexity is closely related to the difficulty and the cost of building a quantum *** existed full adder based on R gate is a great design but it is not suitable to construct a quantum *** show the quantum legitimacy of some common reversible gates,then use R gate to propose a new design of a quantum full *** utilize the new designed quantum full adder to optimize the quantum multiplier which is based on R *** is shown that the new designed one can be optimized by a local optimization rule so that it will have lower quantum cost than before.

关键词： reversible gate quantum full adder quantum multiplier

von Neumann measurement-related matrices and the nullity condition for quantum correlation

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Science China(Physics,Mechanics & Astronomy) 2016年第12期59卷 27-32页

作者： MingJing Zhao Teng Ma tinggui zhang Shao-Ming Fei School of Science Beijing Information Science and Technology UniversityBeijing 100192China State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics Tsinghua UniversityBeijing 100084China School of Mathematics and Statistics Hainan Normal UniversityHaikou 571158China School of Mathematical Sciences Capital Normal UniversityBeijing 100048China Max-Planck-Institute for Mathematics in the Sciences Leipzig 04103Germany

We study von Neumann measurement-related matrices, and the nullity condition of quantum correlation. We investigate the properties of these matrices that are related to a von Neumann measurement. It is shown that these(m^2-1)×(m^2-1) matrices are idempotent, and have rank m-1. These properties give rise to necessary conditions for the nullity of quantum correlations in bipartite systems. Finally, as an example we discuss quantum correlation in Bell diagonal states.

关键词： von Neumann measurement matrix rank quantum correlation

Separability criteria based on Heisenberg–Weyl representation of density matrices

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Chinese Physics B 2018年第3期27卷 132-136页

作者： Jingmei Changl Meiyu Cui tinggui zhang Shao-Ming Fei School of Mathematics and Statistics Hainan Normal University Haikou 571158 China Hainan Center for Mathematical Research Halnan Normal University Haikou 571158 China School of Mathematical Sciences Capital Normal University Beijing 100048 China Max Planck Institute for Mathematics in the Sciences Leipzig 04103 German

Separability is an important problem in theory of quantum entanglement. By using the Bloch representation of quantum states in terms of the Heisenberg-Weyl observable basis, we present a new separability criterion for bipartite quantum systems. It is shown that this criterion can be better than the previous ones in detecting entanglement. The results are generalized to multipartite quantum states.

关键词： Heisenberg-Weyl observable basis Bloch representation separability criterion multipartite quan- tuna states

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不同变质程度烟煤的自燃特性研究

煤矿安全 2024年第2期55卷 87-98页

作者：贾廷贵张智超郝长胜内蒙古科技大学矿业与煤炭学院内蒙古包头014010

为了研究不同变质程度烟煤的自燃特性变化,根据变质程度由低到高顺序,选用4种不同变质程度烟煤:宁夏灵武不黏煤、宁夏灵武气煤、山西霍州1/3焦煤以及辽宁沈阳瘦煤,分别开展液氮吸附实验、傅里叶红外光谱实验以及TG-DSC同步热分析实验。... 详细信息

为了研究不同变质程度烟煤的自燃特性变化,根据变质程度由低到高顺序,选用4种不同变质程度烟煤:宁夏灵武不黏煤、宁夏灵武气煤、山西霍州1/3焦煤以及辽宁沈阳瘦煤,分别开展液氮吸附实验、傅里叶红外光谱实验以及TG-DSC同步热分析实验。结果表明:随着变质程度的升高,烟煤的内部孔隙的比表面积逐渐增加,孔容积变化趋势与之相同;煤样中的活性官能团比重逐渐减小,化学性质相对稳定的官能团比重逐渐增加;烟煤的临界温度T1与着火点温度T4随着变质程度的加深而逐渐升高,煤样燃烧阶段的放热量逐渐减小。综上所述,随着变质程度的升高,烟煤化学性质趋于稳定,愈发难以自燃;煤样中的活性官能团的影响程度要比孔隙结构的影响程度要大。

关键词：煤自燃 TG-DSC 自燃特性 BET比表面积放热特性含氧官能团

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温度对加热卷烟酸性成分释放的影响

烟草科技 2022年第8期55卷 49-56页

作者：邓其馨陈辉林艳张廷贵郑泉兴赖炜扬马鹏飞蓝洪桥刘泽春谢卫福建中烟工业有限责任公司技术中心福建省厦门市361021

为考察温度对加热卷烟酸性成分释放的影响,分析了在不同加热温度下3种加热卷烟烟气中酸性成分释放的种类及释放量差异,并与传统卷烟进行了对比。结果表明:①加热卷烟主流烟气中酸性成分的释放量和种类均低于传统卷烟,不同加热卷烟酸性... 详细信息

为考察温度对加热卷烟酸性成分释放的影响,分析了在不同加热温度下3种加热卷烟烟气中酸性成分释放的种类及释放量差异,并与传统卷烟进行了对比。结果表明:①加热卷烟主流烟气中酸性成分的释放量和种类均低于传统卷烟,不同加热卷烟酸性成分的释放量也存在明显差异。②甲酸、乙酸、乳酸在加热卷烟主流烟气酸性成分中所占比例较大,当加热温度为200~300℃时,其释放量和迁移量快速增加,在300℃之后增幅减缓。在200~350℃时,棕榈酸释放量和迁移量快速增加,在350℃之后增幅减缓。③加热卷烟游离态有机酸的迁移率与其沸点相关,沸点越高,迁移率越低。

关键词：加热卷烟酸性成分释放量温度