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离子检测     
相关语句
  ion detection
     Nine kinds of expected positive ions such as C + ( m/z 12), OH + ( m/z 17), H 2O + ( m/z 18), CO 2 + ( m/z 28), etc, were measured by multiple ion detection(MID).
     采用多离子检测模式预定测量热分解生成的 C+ ( m/z1 2 )、OH+ ( m/z1 7)、H2 O+ ( m/z1 8)、CO2 + ( m/z2 8)等 9种正离子。
短句来源
     Determination of the contents of the main components in cardioplegic solution by means of HPLC with positive ion detection
     HPLC-离子检测法测定心脏停跳液中主要成分的含量
短句来源
     The conditions of detection were: carrier gas was helium, derivatives were separated with SE-54 fusedsilica capillary column, using temperature program and detected by using mutiple ion detection mode inwhich the ion of m/z 432 was the monitoring ion.
     实验条件为:以氦为载气,SE—54熔融石英柔性毛细管柱、程序升温进行样品分离,多离子检测(MID),监测m/z432的离子。
短句来源
     A Shear-Horizontal surface acoustic wave (SH-SAW) sensor fabricated on 36°-YX LiTaO 3 was developed for ion detection in liquid, both ion concentration and ratio in binary mixture can be detected in liquid flow system.
     以 36° -YXLiTaO3为基底的双通道声表面波 (SH -SAW)液相金属离子传感器 ,在LabView测试平台下采用流动注射的方法研究了该系统在液相金属离子检测和分析中的原理和应用。
短句来源
     The Working principle, structure characteristics and ion detection methods of a three-dimensional quadrupole ion trap are described.
     介绍了三维四极离子阱的工作原理、结构特点和离子检测方法。
短句来源
更多       
  ion monitoring
     HPLC-ESI ~(-)-MS was performed in the selected ion monitoring (SIM) mode using target ions at m/z 423.4 (pravastatin and 3 'α-isopravastatin) and m/z 319.2 (IS) .
     采用HPLC—ESI~--MS法,选择离子检测方式,用于定量分析的检测离子为m/z423.4(普伐他汀和3’α-异普伐他汀)和m/z 319.2(内标)。
短句来源
     The analytes were detected by gas chromatography-mass spectrometry in selected ion monitoring (GC/MS/SIM).
     用气质联用选择离子检测(GC/MS/SIM)。
短句来源
     Methods:Samples were extracted by ethyl acetate and a satisfactory separation was achieved on Zorbax XDB C 18 column( 150 mm× 2.1 mm× 5 μm)by using the mobile phase consisting of CH 3OH(50%) and 0.1% HAC(50%). The ion mass spectral m/z:293\ + was slected to quantify by the selective ion monitoring(SIM) in a positive mode.
     方法:全血样品经乙酸乙酯萃取,以甲醇+0.1%乙酸(50+50)为流动相,采用XDBC18柱(150mm×2.1mm×5μm)分离,通过电喷雾电离离子化技术及选择性离子检测(SIM)进行测定,定量分析离子为m/z:293[M+H]+。
短句来源
     The eluent was detected by MS using atmospheric pressure chemical ionization (APCI) technique and selected ion monitoring (SIM) detection mode. Ions for quantitation were m/z 226 [M+H]+. The linear range was 0.05~2.0 mg/L, the detection limit was 0.0025 mg/kg and the average recovery was 94.0% with RSD less than 10%.
     质谱检测采用了大气压化学电离(APCI)离子化技术和选择离子检测(SIM)模式,定量检测离子m/z226[M+H]+,线性范围为0.05~2.0mg/L,检测下限为0.0025mg/kg,平均回收率为94.0%,RSD小于10%。
短句来源
     LC-ESI MS was used in the selected ion monitoring(SIM) mode with target ions at m/z 837.5 for roxithromycin and m/z 748.3 for clarithromycin.
     质谱条件:气动辅助电喷雾离子化,正离子检测,选择性离子检测(SIM),检测离子:罗红霉素m/z837.5[M+H]+,克拉霉素m/z748.3[M+H]+。
短句来源
更多       
  detection of ions
     The Channel Electron Multiplier Used for Detection of Ions
     研究用于离子检测的通道电子倍增器
短句来源
  ion detecting
     THE FLAME ION DETECTING TECHIQUE APPLYING FOR GAS UTENSIL SAFEGUASDING
     火焰离子检测技术在燃气器具安全保护中的应用
短句来源
     This article described the modified Zeisel reacti ve GC/MS single ion detecting technique to determine the types and contents of acrylates in acrylic polymers.
     本文介绍如何用改良的蔡塞尔(Zeisel)反应-色谱/质谱(GC/MS)单离子检测技术分析(甲基)丙烯酸酯类聚合物中各种酯的类型及含量。
短句来源
     he feature of the flame ion current was introduced in this article, Also, the flame ion detecting techmique applying for gas utensil safeguarding and the design procedure of practical circuit were described and several practical circuits were provided.
     本文介绍了火焰离子电流的特点,论述了火焰离子检测技术在燃气器具安全保护中的应用及实用电路设计方法,并给出几种实用电路。
短句来源

 

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  ion detection
Other possible applications of the single-ion detection technique were considered.
      
The system considerably improves the signal-to-noise ratio and helps the use of a detector with a small-area entrance window for ion detection.
      
The mobility of the daughter products was measured using the flow-through technique of air ion detection.
      
The use of multiple ion detection techniques for the quantitation of these compounds was also investigated.
      
Using crossed atomic, molecular cluster, and cw laser beams in conjunction with mass spectrometric ion detection, we have obtained for the first time results for electron transfer fromstate-selected Rydberg atoms to molecular clusters.
      
更多          
  ion monitoring
The detection limit in the selective-ion monitoring mode with preconcentration is 1 × 10-4 μg/mL.
      
The analytical ranges for chromatography-mass spectrometry were 0.05-1000 and 0.005-1000 μg/mL under the conditions of total ion current (TIC) scanning and selected ion monitoring (SIM), respectively.
      
To enhance selectivity, ESI-MS detection was optimized in the negative mode and selected ion monitoring (SIM mode).
      
A method was described for simultaneous determination of nine organic heterocyclic pesticide residues by gas chromatography-mass spectrometry-selected ion monitoring.
      
The lower detectable concentration of these compounds per ml of body fluids or g of wet tissue is either 1 μg or 20 ng, depending on the type of detector used, flame ionization or selected-ion monitoring.
      
更多          
  detection of ions
The useful signal-to-background ratio in the detector's chamber is 3 × 104 during detection of ions with mass-to-charge ratio m/q = 4 amu.
      
The method is based on the principle of the internal-diffusion ion-exchange separation of a test mixture followed by the detection of ions using the macroscopic field phenomenon in multicomponent ion exchange.
      
Pulsed discharge in a hollow cathode with the detection of ions in a time-of-flight mass spectrometer: Analytical capabilities i
      
This paper discusses the use of capillary zone electrophoresis (CZE) with indirect UV detection for the separation and detection of ions.
      
There was an insufficient quantity of the compound with Rt of ZE-9,12-14 : Ac to get a full spectrum, but selective detection of ions at m/z 61 and 192 at the correct Rt supported the identification.
      
更多          
  ion-detection
By measuring the time-of-flight from the photo-excitation to the ion-detection, a species of ions -mass and charge state- was identified.
      
Experiences are described with Geiger-counters for ion-detection in combination with a solid source mass spectrometer of the 600-sector field type and about practice of this apparatus for trace analysis of some alcali metals.
      
Starting from a 50 g sample and making use of the multiple-ion-detection technique (MID) the limit of determination is in the order of 0.1 μg/kg.
      
Normally, ion-detection has involved either simultaneous multi-element detection with an ion-sensitive photographic plate or sequential single-peak electrical detection.
      
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