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- It is shown that the lowest detectable limit of CD_4 by gas chromatography-quadrupole mass spectrometer method is 40 times of pulse injection QMS method. 研究表明:气相色谱-四极质谱(GC-QMS)法对CD4的探测下限约是脉冲进样QMS法的40倍。
- Fluorophotometry was preferred for beer with low-content of oxalic acid such as calcium-added beer because of its low detection limit. 荧光光度法由于检测限较低，非常适合于低草酸含量啤酒（如加钙啤酒）的测定。
- A lot of facts have show that the preconcentration has been used for trace analysis with satisfactory result and low detection limit. 大量文献表明预富集技术用于痕量分析取得满意的效果，降低了检测限，提高了灵敏度。
- A high sensitive EDXRF analyzer is made up with a double exciting apparatus including low energy X-ray tube and isotope source, and an electrically cooled Sin-PIN detector. The analyzer is characterized of high en-ergy resolution and low detection limit. 高灵敏度CIT-3000型能量色散X射线荧光(EDXRF)分析仪采用低能X光管和同位素源双激发方式,以电致冷半导体探测器作为探测系统,使该分析仪具有分辨率高、检出限低、分析元素多的特点。
- Based on the enhancement in ECL of Ru(bpy)32+ by MT, a simple method for the determination of MT in medicines with an extraordinarily low detection limit of 1.0 10-10 mol/L is presented. 基于MT对Ru(bpy)_3~(2+)的ECL的增强作用，建立一种十分灵敏简便的褪黑素ECL快速检测体系，最低检测限达到1.;0×10~(-10)mol/L，应用于保健药品分析。
- The electrode showed wide linear response range, low detection limit, satisfactory average recovery for Berenil Xyalzole, Levamisole and Berberine.The electrode gives good other characteristic. 电极对兽药血虫净、静松灵、左旋咪唑、黄连素等的响应线性范围宽，检测下限低，各项性能良好，回收率测定结果满意。
- Ion mobility spectrometry (IMS) is a gas phase electrophoretic technique with the advantages of speed, low detection limits and low cost. 摘要离子迁移谱技术是一种气相环境下的电泳检测技术，具有快速、灵敏、运行成本低等特点。
- In addition, lower detection limit were obtained in the determination of residual benzene homologues with high boiling points. 该法的精密度比顶空法好,对于测定较高沸点的残留苯系物,检出限也更低。
- According to this, we determined 40 elements in geochemical byICP-MS, 21elements by ICP-OES and 49 elements by ICP-OES/MS: Thesemethods were specialized with low detection limits, high precision, goodaccuracy and high speed. 采用简单的酸溶解样品的方法溶解样品，在仪器最佳测定条件下用ICP-MS测定了样品中40个元素和用ICP-OES测定了样品中21元素，最后在ICP-MS和ICP-OES的折中条件下，测定了样品中含量不同的49个元素。
- The detection limits of Ce, Lu by using LEI spectrometry method is lower than AAS (atomic absorption) in flame and ICP-AES. The lowest detection limit of Ce obstained in this work was 4ng/ml and the lowest detection limit of Lu was 8ng/ml. 用LEI光谱方法测量的稀土元素Ce、Lu的检测限优于在火焰中的原子吸收光谱方法和ICP-AES方法,Ce、Lu、的检测限分别为4ng/ml、8ng/ml。
- Lowest Detectable Limit 最低检测限
- The lowest detectable content was 10-5%(W/W) for above each element. 采用挥发分离基体，探讨了高铼酸铵基体的干扰及其消除办法。
- How to Lower Detection Limit of VOC Analysis in Water 如何降低水中VOC分析的检测限
- The detection limit of G-LCR was 2 EBs . G LCR可检测出两个衣原体原体 ;
- The detectable limit of this method is less than 1 pg(or 1 unit )of IL-6 in one milliliter. 检测灵敏度为1pg或1U/ml以下；
- Results indicate that after the optimization, the RCS of the low detectable wing structures is radically reduced. 研究结果表明，经过优化设计后，在方位和频域上能显著降低翼面隐身结构RCS。
- The detectable limit for EPT in propylene is 10ppm, the recovery efficiency is greater than 95%, and the relative standard deviation is less than 6%. 叙述了用顶端空间气相色谱技术测定聚丙烯中ppm级对甲基苯甲酸乙酯(简称EFT),可定量检出残留在聚丙烯中低达10ppm的EPT,相对标准偏差小于6%25,回收率大于95%25。
- For 51Cr, 60Co, 65Zn, 95Zr-95Nb and 137Cs the decontamination factor is greater than 103. The minimum detectable limit of this method is 3. 8X 10-3 Bq/L. 对铬-51、钴-60、锌-65、锆-95-铌-95和铯-137等核素的去污系数均大于10~3。 方法简便;易于操作;探测限为3.;8×10~(-3)BqL~(-1)。
- The detection limit for AA/AM/4-MNDMAPN-AQ is 0.5 mg. L~(-1). 检测下限为0.;5mg/L。
- A rational way is presented to determine the objective function in the low detectable design using radar cross section (RCS) distribution information of the aircraft. 摘要根据飞行器的雷达散射截面(RCS)分布，合理确定飞行器隐身外形优化设计中的目标函数。
