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顺序注射

顺序注射的相关文献在2000年到2022年内共计180篇,主要集中在化学、环境质量评价与环境监测、化学工业 等领域,其中期刊论文114篇、会议论文14篇、专利文献69412篇;相关期刊49种,包括辽宁师范大学学报(自然科学版)、广东微量元素科学、理化检验-化学分册等; 相关会议11种,包括2015年中国环境科学学会年会、第二十一届全国光谱仪器与分析监测学术研讨会、2014中国环境科学学会学术年会等;顺序注射的相关文献由370位作者贡献,包括范世华、徐文军、董芳等。

顺序注射—发文量

期刊论文>

论文:114 占比:0.16%

会议论文>

论文:14 占比:0.02%

专利文献>

论文:69412 占比:99.82%

总计:69540篇

顺序注射—发文趋势图

顺序注射

-研究学者

  • 范世华
  • 徐文军
  • 董芳
  • 方肇伦
  • 杨梅
  • 梁敬
  • 王庆
  • 王建华
  • 侯爱霞
  • 杨名名
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 李文; 马俊源; 毛潭; 吕彬彬
    • 摘要: 为使顺序注射水质检测高效率、低成本,文中提出一种基于STM32的顺序注射水质在线监测系统。该系统以STM32为控制核心,通过注射泵、阀岛以及压力阀的顺序动作完成实验流路的控制;在由PT100、加热丝以及散热风扇构成的温度控制硬件系统上运行PID算法,以实现实验温度条件的控制;在消解池两侧安放光源与检测管,通过放大检测管的接收信号及计算有效值等一系列处理后得到实验光强,进而计算出吸光度,然后根据朗伯⁃比尔定律得到测量结果。最后增加故障检测、数据存储、数据上传等辅助功能,保证整个系统的稳定运行。实验结果表明,所提水质检测系统的检测效率得到大幅提高,检测成本降低,同时顺序注射水质检测的应用范围也有所拓展。
    • 马灵威; 孙楫舟; 李洋; 佟建华; 边超; 夏善红
    • 摘要: 系统面向水中总磷的在线监测,对基于顺序注射-分光光度法的总磷小型自动化在线检测系统的关键技术进行了研究.系统由消解单元、流路单元、光学检测单元和控制单元组成.实验结果显示,系统在磷酸盐浓度为0.05~1 mg/L范围内有线性的光电压响应,灵敏度为0.8502 V/(mg·L-1),线性相关系数为0.9999,检测下限为0.014 mg/L.可以实现对国家地表水环境质量标准中规定的I-V类水进行检测.此外,研究了环境温度对系统检测的影响,结果表明,在25~59°C范围内,随着环境温度的升高,检测灵敏度随之增加;当环境温度大于65°C时,检测的光电压信号产生畸变.研究结果对总磷的在线监测具有重要意义.
    • 王志宏; 刘同辉; 刘延学; 管益涛
    • 摘要: [目的]建立氢化物发生-原子荧光光谱法测定种药食同源品中铅的方法.[方法]采用微波消解仪消解样品,利用顺序注射原子荧光光谱法测定6种市售药食同源品中的铅.[结果]方法中仪器检出限为0.068 μg/L,工作曲线相关系数为0.9998,相对标准偏差为2.53%,回收率为92.74%~101.26%.以国家标准物质茶叶作为质控样品,结果准确.[结论]该方法能够快速准确地检测药食同源品中的铅.%[Objective] The aim was to establish a determination method of lead in medicinal and edible goods by microwave digestion and sequential injection hydride generation atomic fluorescence spectrometry.[Method] The lead in six medicinal and edible goods was determined by microwave digestion,sequential injection hydride generation atomic fluorescence spectrometry.[Result] The instrument limit,correlation coefficient,RSD and recovery rate were 0.068 μg/L,0.999 8,2.53% and 92.74%-101.26%,respectively.Reference material tea was determined as control sample and the results were accurate.[Conclusion] The method is fast and accurate for determination of lead in medicinal and edible goods.
    • 武新; 李光林; 温志渝
    • 摘要: 一种新的金属表面改性(quench-polish-quench,QPQ)盐浴复合热处理技术能大幅度提高金属表面的耐磨性和抗蚀性.氮化盐中氰酸根离子(CNO-)的含量是QPQ工艺质量控制的重要参数.研究采用分光光度和顺序注射法对氰酸根离子(CNO-)含量进行定量分析.研究了将CNO-离子通过高温高压定量转化成铵根离子(NH+4),再依据水杨酸分光光度法,通过对NH+4的测定,间接实现氰酸根离子含量的检测,选取697 nm为定量分析谱线,实验结果表明检测的线性范围0.02~0.6 mg·kg-1,最低检出限为0.018 mg·kg-1,基于顺序注射法实现QPQ工艺中CNO-含量全自动原位检测.测量均值相对误差和相对标准方差分别为1.31% 和0.92%,测定结果满足要求,精确度高和重复性好,优于传统化学滴定法,为盐浴复合热处理技术中氮化盐氰酸根的全自动原位测定仪器开发提供了理论和技术支持.%Anew technology of metal surface modification-QPQ (Quench-Polish-Quench) Salt bath compound heat treatment technology can improve theabradability and anticorrosion of metal surface.The CNO-ion plays a very important role in the quali-ty control of QPQ technology.A sequential injection spectrophotometric method is proposed for the determination of CNO-ion. In addition ,the indirect detection method of converting CNO-ion into ammonium ion (N H+4 ) in the condition of high temperature and high pressure is studied;a 697 nm line is selected as the characteristic wavelength.The measuring range of this experiment setup is 0.02~0.6 mg · kg -1 ,and the limit of detection (LOD) is 0.018 mg · kg -1.Based on the sequential injection ,the set-up can completely automatic on-situ test the concentration of CNO-ion in the quench-polish-quench (techniques for heat treatment of salt bath) process.Measure mean relative error and relative standard variance is 1.31% ,0.92% respectively.Compared with the traditional standard measurement method ,a high precision and good repeatability result meets the requirements ,w hich pro-vides theoretical and technical support for the development of the fully automatic in-situ measurement instrument for the treat-ment of the salt bath compound heat treatment technology.
    • 张霞; 马宇昊; 王涛; 张士苹; 樊静
    • 摘要: 在酸性介质中,双酚A对溴酸钾氧化亚甲基蓝褪色反应有明显的抑制作用,联用顺序注射自动化进样技术,建立了快速测定环境水样中痕量双酚A的阻抑动力学分析方法.在计算机程序控制下,考察了各项顺序注射参数和试剂参数的影响.在最佳实验条件下,该方法测定双酚A的线性范围为0.10~2.00μg·mL-1,检出限为0.05μg·mL-1,每小时可测定45个样,测定每个样仅消耗0.06 mL试剂.该方法用于环境水样中双酚A的测定,与高效液相色谱法比较,经统计学处理结果符合良好.%Based on the inhibitory effect of bisphenol A on the discoloring reaction of methylene blue with potassium bromate in acid solution,a rapid and simple sequential injection-inhibitory kineticanalysis method for the determination of trace bisphenol A was de-scribed. The effect of various parameters of sequential injection and reagent on the system performance had been optimized under computer control. Under the optimum experimental conditions,the linear range for determination of bisphenol A was 0. 10~2. 0 μg ·mL-1 with the detection limit of 0. 05 μg·mL-1. Sample frequency was 45 per hour with only 0. 06 mL reagent consumed for a single sample determination. The method was applied to the determination of bisphenol A in environmental water samples,and the results were found to be statistically in good agreement with those obtained by high performance liquid chromatography.
    • 李又兵; 胡学川; 赵利亚; 张攀; 周桦林
    • 摘要: In order to study the sequential injection molding technique for injection-molded auto front bumpers,Moldflow software combined with pneumatic sequence valve technology was used to simulate the injection and cooling systems,and the positions of cavitation and weld line were forecasted.The sequential injection molding through 10 pin-point gates was simulated by Moldflow software.It was found that a mould locking force of more than 1820 tons and a reynolds number of 1000 were required in this injection molding technique.The auto front bumpers were produced on the basis of the above simulation optimizations.Theresults indicated that the sequentially injection molded auto front bumpers exhibited a good injection balance,good appearance quality and high production effidency.%针对某汽车前保险杠注射成型工艺问题,采用Moldflow软件并结合气动控制顺序阀技术,模拟分析了注塑浇注系统与冷却系统,预测了气穴和熔接痕位置;实现了熔体从10个点浇口先后进行顺序填充型腔,锁模力要求大于1820 t,冷却水雷诺系数(Re)大于10000;在模拟优化的基础上进行了试模生产.结果表明,产品进浇平衡,外观品质好,生产效率得到明显提升.
    • 褚建忠
    • 摘要: The design issues of injection mould for automobile dashboard with deeper cavity were described on the basis of dashboard's structural characteristics and quality requirement.And the simulation Analysis and innovative design of the mould structure,sequnce injection and cooling system were carried out by UGNX and Moldflow sofewares.The design meets the anticipation of automobile mass production.The design results meet the expected requirements for vehicle volume production,and can also be applied to the manufacture of decorative parts with the same structural characteristics such as the spoiler and the train instrument panel.%根据轿车仪表板的结构特点与质量要求,简要介绍了当前深型腔轿车仪表板注射模具的设计难点,并借助于UGNX与Moldflow软件在模具结构、顺序注射、冷却系统等方面进行仿真分析和创新设计.设计结果满足整车量产的预期要求,还可推广应用到扰流板、火车仪表板等具有同样结构特征的装饰部件生产上.
    • 鲁华; 马灵威; 佟建华; 边超; 夏善红
    • 摘要: A small automatic system for total phosphorus detection based on absorption photometry using sequential injection analysis technique is realized.Experimental results demonstrate that the automatic detection system has high accuracy and good repeatability with the concentration of total phosphorus at range of 0 ~0.5 mg/ L,and can be used to detect total phosphorus in Ⅰ ~ Ⅴ class water clarified in national surface water environmental standard.The developed system has the advantages of high-precision of testing results,low reagent consumption and easy operation.%基于吸光光度的检测原理,采用顺序注射的方法,实现一种体积小、自动化程度高的水质总磷检测系统.实验结果显示,在0~0.5 mg/L的浓度范围内,该自动检测系统对水样中总磷浓度的检测具有较高的精度和良好的重复性,可以对国家地表水环境标准中要求的I~V类水中总磷含量进行快速准确测量.该自动检测系统具有测量结果准确稳定、消耗试剂量少以及操作简单等优点.
    • 赵毅; 王佳男
    • 摘要: 采用HNO3-H2O2消解液消解环境水样,建立了一种顺序注射氢化物发生-原子荧光光谱法同时测定环境水样中砷和硒含量的方法.讨论了光电倍增管负高压、原子化器高度、载气流量、屏蔽气流量、砷和硒灯电流等因素对测定结果的影响.结果显示,砷和硒的相对标准偏差均小于5%,检出限分别为0.20μg·L-1和0.20μg·L-1,加标回收率分别为95.0%~108%和90.0%~120%.该方法简单快速,灵敏度高,样品测定结果准确可靠,适用于河水、井水、废水等环境水样中砷和硒的测定.
    • 孙梁越; 冯尚彩; 倪坤; 刘文龙; 郭绍芬
    • 摘要: 目的 对临沂引种松果菊不同部位砷(As)、硒(Se)含量进行测定。方法 以松果菊的根、茎、叶、花为原料,采用干式灰化和微波消解处理样品,顺序注射氢化物发生-原子荧光光谱法(AFS)测定消解后松果菊不同部位砷和硒的含量。比较样品不同部位砷和硒含量的不同。结果 砷和硒在松果菊根中含量最高,其次,在叶、花和茎中含有的砷和硒含量相差不大,但在花中的含量还是稍高于其茎中的含量,松果菊各部位中砷的含量均高于硒的含量。结论 原子荧光光谱法快速简便,所得结果令人满意。
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