Development of Photometric Flow Analyzer with Laser Diode and Long Flow Cell

激光二极管和长流通池光度流量分析仪的研制

基本信息

  • 批准号:
    07650982
  • 负责人:
  • 金额:
    $ 1.41万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    1995
  • 资助国家:
    日本
  • 起止时间:
    1995 至 1996
  • 项目状态:
    已结题

项目摘要

A highly sensitive detection system using a semiconductor laser (SCL) and a thin long flow-through cell (TLFCT) to match flow-based analysis, such as flow injection analysis (FIA), has been developed. The SCL was a GaAIAs semiconductor laser emitting at 780 nm (5mW), and the TLFTC,which has a 100 mm thin long light path, was made of a poly (tetrafluoroethylene) (PTFE) rod. The sensitivity was essentially improved about 10-fold in comparison to usual FIA-spectrophotometry using a 10 mm conventional flow cell. When this detection system was applied to the determination of total phosphorus (P) in water by molybdenum-blue spectrophotometry, the relative standard deviation, detection limit and linear range were 1.0% (n=10 at 20 mug P 1^<-1>), 0.6 (3sigma) and 1.0-50 mug P 1^<-1>, respectively, and the results for the samples were fairly consistent with those by the official method. It may also be possible to apply the present detection system to other flow-based analytical methods such as the liquid chromatography family.The determination of dissolved silica in waters is one of the applications of the detection system to practical trace analysis. Other trace components in samples could also be measured by FLA with this detection system. The technology of the SCL is progressing rapidly. The output power doubles every year, and the cost is cut in half. The light pathlength of TLFTC may be further prolonged for further increasing the sensitivity. When an inexpensive SCL,which can be continuously adjustable in frequency, comes available, it will be ever more suitable and convenient for determinations of many trace components in samples to use this analytical technique. The new detection system may also be beneficial to other flow-based analytical techniques such as liquid chromatography.
开发了一种高灵敏度的检测系统,该系统使用半导体激光器(SCL)和薄长流通池(TLFCT)来匹配基于流动的分析,例如流动注射分析(FIA)。SCL是在780 nm(5 mW)下发射的GaAlAs半导体激光器,并且具有100 mm薄长光路的TLFTC由聚(PTFE)棒制成。与使用10 mm常规流动池的通常FIA-分光光度法相比,灵敏度基本上提高了约10倍。将该体系用于水中总磷的测定,相对标准偏差为1.0%(n=10,20 μ g/L),检出限<-1>为0.6(3sigma),线性范围为1.0 ~ 50 μ g/L<-1>,测定结果与标准方法一致。也可以将本发明的检测系统应用于其它基于流动的分析方法,例如液相色谱系列。测定沃茨的溶解二氧化硅是检测系统在实际痕量分析中的应用之一。该检测系统还可用于样品中其它痕量组分的检测。SCL的技术正在迅速发展。输出功率每年翻一番,成本降低一半。TLFTC的光程长度可以进一步延长,以进一步提高灵敏度。当一种价格低廉、频率连续可调的SCL出现时,它将更适合和方便地用于样品中多种痕量组分的测定。新的检测系统也可能有益于其他基于流动的分析技术,如液相色谱。

项目成果

期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Takashi KORENAGA,Xiaojing ZHOU: "Computer-Controlled Micropump Suitable for Precise Microliter Delivery and Complete In-line Mixing" Analytical Chemistry. 66-1. 73-78 (1994)
Takashi KORENAGA、周晓静:“适用于精确微升输送和完全在线混合的计算机控制微泵”分析化学。
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    0
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  • 通讯作者:
伊永隆史: "細管内流動に伴う試料溶質の対流・拡散現象解析装置の開発" ぶんせき. 1995. 145-151 (1995)
Takashi Inaga:“开发一种用于分析与毛细管中流动相关的样品溶质的对流和扩散现象的装置”Bunseki 1995。145-151 (1995)。
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    0
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Takashi KORENAGA,Fusheng SUN: "High Sensitivity Flow-Based Analysis Using a Semiconductor Laser and Thin Long Flow-Through Cell for the Determination of Total Phosphorus in Water" Talanta. 43・9. 1471-1479 (1996)
Takashi KORENAGA,Fusheng SUN:“使用半导体激光器和细长流通池测定水中总磷的高灵敏度流动分析”Talanta 43・9 (1996)。
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    0
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小島次雄,伊永隆史: "創造機能化学第116委員会業績報告" 日本学術振興会, 240 (1994)
Tsuguo Kojima、Takashi Inaga:“第 116 届创造性功能化学委员会的成就报告”日本学术振兴会,240(1994)
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  • 影响因子:
    0
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  • 通讯作者:
Xiaojing ZHOU, Takashi KORENAGA, et al.: "A Flow-Based Ecoanalysis System for Water Pollution Monitoring" Advances in Ecotechnology. 1. 347-358 (1995)
周晓静、小长隆等人:“基于流的水污染监测生态分析系统”生态技术进展。
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  • 影响因子:
    0
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KORENAGA Takashi其他文献

KORENAGA Takashi的其他文献

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{{ truncateString('KORENAGA Takashi', 18)}}的其他基金

Analytical chemistry studies on dynamic analyses of stable isotope analysis towards the isotopomics research foundation
稳定同位素动态分析的分析化学研究为同位素组学研究奠定基础
  • 批准号:
    23615006
  • 财政年份:
    2011
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
ISOTOPE RATIO MASS SPECTROMETRIC STUDY ON ISOTOPE RATIO ANALYSES OF AMINO ACIDS IN LIFE CYCLE ASSESSMENT FOR THIRTY YEARS FOOD EATINGS
三十年食品生命周期评估中氨基酸同​​位素比分析的同位素比质谱研究
  • 批准号:
    19310025
  • 财政年份:
    2007
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Downsizing studies on chemical experiments for minimization of environmental loads
减少环境负荷的化学实验小型化研究
  • 批准号:
    15069207
  • 财政年份:
    2003
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas
DEVELOPMENT OF ACID RAIN MONITORING NETWORK SYSTEM USING GLOBAL POSITIONING SYSTEM AND ITS FIELD EVALUATION IN CHINA
我国全球定位系统酸雨监测网络系统开发及现场评价
  • 批准号:
    13574017
  • 财政年份:
    2001
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of a Sensitive Lazer Spctrophotometric Environmental Monitoring Device Using Droplet Method
液滴法灵敏激光分光光度环境监测装置的研制
  • 批准号:
    10650797
  • 财政年份:
    1998
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of droplet surface applied passive monitoring device for low concentration VOC
液滴表面应用的低浓度VOC被动监测装置研制
  • 批准号:
    10558085
  • 财政年份:
    1998
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B).
Development of a Passive Sampling/Monitoring Device Suitable for Acid Gas in Atmospheric Environment in China and Its Field Evaluation
适用于我国大气环境酸性气体被动采样/监测装置的研制及现场评价
  • 批准号:
    09041126
  • 财政年份:
    1997
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A).
Development of a Passive Sampler for SOx Monitoring in China
中国 SOx 监测被动采样器的开发
  • 批准号:
    07044171
  • 财政年份:
    1995
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for international Scientific Research
Development of a simple monitoring method for acid gas components
酸性气体成分简易监测方法的开发
  • 批准号:
    06558079
  • 财政年份:
    1994
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research (B)
Development of Micro Capillary Stream Sensor
微毛细管流传感器的研制
  • 批准号:
    01550577
  • 财政年份:
    1989
  • 资助金额:
    $ 1.41万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

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Semiconductor Laser Diode toward Ultimate High-Speed Modulation
半导体激光二极管走向终极高速调制
  • 批准号:
    22H01556
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    2022
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High throughput detection of the spike glycoprotein of the virus causing COVID-19 by laser diode thermal desorption-triple quadrupole mass spectrometry
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Extreme characteristic semidonductor laser diode
极端特性半导体激光二极管
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    19H02201
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Study on Laser Sustained Plasma using Laser Diode for Space Thruster
空间推进器激光二极管激光持续等离子体研究
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    18H03812
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用于低成本激光二极管制造的先进蚀刻和光学镀膜
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低成本空间光束组合支持用于立体光刻的紫外激光二极管阵列
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准直器和聚焦器组件、激光到光纤耦合器以及激光二极管到光纤耦合器的设计和工艺改进
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