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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:氣相色譜-四極質(zhì)譜(GC-QMS)法對CD4的探測下限約是脈沖進(jìn)樣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. 熒光光度法由于檢測限較低，非常適合于低草酸含量啤酒（如加鈣啤酒）的測定。
- A lot of facts have show that the preconcentration has been used for trace analysis with satisfactory result and low detection limit. 大量文獻表明預富集技術(shù)用于痕量分析取得滿(mǎn)意的效果，降低了檢測限，提高了靈敏度。
- 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. 高靈敏度CIT-3000型能量色散X射線(xiàn)熒光(EDXRF)分析儀采用低能X光管和同位素源雙激發(fā)方式,以電致冷半導體探測器作為探測系統,使該分析儀具有分辨率高、檢出限低、分析元素多的特點(diǎn)。
- 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對Ru(bpy)_3~(2+)的ECL的增強作用，建立一種十分靈敏簡(jiǎn)便的褪黑素ECL快速檢測體系，最低檢測限達到1.;0×10~(-10)mol/L，應用于保健藥品分析。
- 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. 電極對獸藥血蟲(chóng)凈、靜松靈、左旋咪唑、黃連素等的響應線(xiàn)性范圍寬，檢測下限低，各項性能良好，回收率測定結果滿(mǎn)意。
- Ion mobility spectrometry (IMS) is a gas phase electrophoretic technique with the advantages of speed, low detection limits and low cost. 摘要離子遷移譜技術(shù)是一種氣相環(huán)境下的電泳檢測技術(shù)，具有快速、靈敏、運行成本低等特點(diǎn)。
- In addition, lower detection limit were obtained in the determination of residual benzene homologues with high boiling points. 該法的精密度比頂空法好,對于測定較高沸點(diǎn)的殘留苯系物,檢出限也更低。
- 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. 采用簡(jiǎn)單的酸溶解樣品的方法溶解樣品，在儀器最佳測定條件下用ICP-MS測定了樣品中40個(gè)元素和用ICP-OES測定了樣品中21元素，最后在ICP-MS和ICP-OES的折中條件下，測定了樣品中含量不同的49個(gè)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光譜方法測量的稀土元素Ce、Lu的檢測限優(yōu)于在火焰中的原子吸收光譜方法和ICP-AES方法,Ce、Lu、的檢測限分別為4ng/ml、8ng/ml。
- Lowest Detectable Limit 最低檢測限
- The lowest detectable content was 10-5%(W/W) for above each element. 采用揮發(fā)分離基體，探討了高錸酸銨基體的干擾及其消除辦法。
- How to Lower Detection Limit of VOC Analysis in Water 如何降低水中VOC分析的檢測限
- The detection limit of G-LCR was 2 EBs . G LCR可檢測出兩個(gè)衣原體原體 ;
- The detectable limit of this method is less than 1 pg(or 1 unit )of IL-6 in one milliliter. 檢測靈敏度為1pg或1U/ml以下；
- Results indicate that after the optimization, the RCS of the low detectable wing structures is radically reduced. 研究結果表明，經(jīng)過(guò)優(yōu)化設計后，在方位和頻域上能顯著(zhù)降低翼面隱身結構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%. 敘述了用頂端空間氣相色譜技術(shù)測定聚丙烯中ppm級對甲基苯甲酸乙酯(簡(jiǎn)稱(chēng)EFT),可定量檢出殘留在聚丙烯中低達10ppm的EPT,相對標準偏差小于6%25,回收率大于95%25。
- 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. 摘要根據飛行器的雷達散射截面(RCS)分布，合理確定飛行器隱身外形優(yōu)化設計中的目標函數。
- The detection limit for AA/AM/4-MNDMAPN-AQ is 0.5 mg. L~(-1). 檢測下限為0.;5mg/L。
- The detection limit for surface waters is 0.05 ppb U . 檢出下限為0.;05ppb;
